| Patent | Date |
|---|
Soldering paste for hard-soldering and coating aluminum and aluminum alloys
Grant 6,656,290 - Koch , et al. December 2, 2 | 2003-12-02 |
Oxygen storing material with high thermal stability and a process for preparation and use thereof
Grant 6,576,207 - Mussmann , et al. June 10, 2 | 2003-06-10 |
Oligomeric organosilanepolysufanes, their use in rubber mixtures and for preparing molded articles
Grant 6,331,605 - Lunginsland , et al. December 18, 2 | 2001-12-18 |
Mutants of formate dehydrogenase from Candida boidinii, new gene sequences encoding these and use of the new formate dehydrogenases
Grant 6,242,234 - Kula , et al. June 5, 2 | 2001-06-05 |
Process for the preparation of nicotinic acid
Grant 6,229,018 - Heinz , et al. May 8, 2 | 2001-05-08 |
Method of producing hydrogen cyanide
Grant 6,096,173 - Von Hippel , et al. August 1, 2 | 2000-08-01 |
Spherical color pigments, process for their production and use thereof
Grant 6,080,232 - Sperlich , et al. June 27, 2 | 2000-06-27 |
Spherical pigments, process for producing them and use thereof
Grant 6,074,754 - Jacobsen , et al. June 13, 2 | 2000-06-13 |
Anode catalyst for fuel cells with polymer electrolyte membranes
Grant 6,066,410 - Auer , et al. May 23, 2 | 2000-05-23 |
Method for the production of trimethylhydroquinone
Grant 6,063,968 - Hubner , et al. May 16, 2 | 2000-05-16 |
Pyrogenic oxides and a process for their preparation
Grant 6,063,354 - Mangold , et al. May 16, 2 | 2000-05-16 |
Process for increasing the lifespan of dental components
Grant 6,012,316 - Lange , et al. January 11, 2 | 2000-01-11 |
Process for the production of five-membered or six-membered cyclic ethers, in particular of anhydropolyols
Grant 6,013,812 - Haas , et al. January 11, 2 | 2000-01-11 |
Co-tolerant anode catalyst for PEM fuel cells and a process for its preparation
Grant 6,007,934 - Auer , et al. December 28, 1 | 1999-12-28 |
Method for obtaining 2-hydroxy-4-methylthiobutyric acid (MHA) which is stable in storage
Grant 6,008,409 - Hasseberg , et al. December 28, 1 | 1999-12-28 |
Process for the preparation of D,L-methionine or the salt thereof
Grant 5,990,349 - Geiger , et al. November 23, 1 | 1999-11-23 |
Process for reducing the sulfane chain length of bis(silylorganyl) polysulfanes
Grant 5,965,760 - Michel , et al. October 12, 1 | 1999-10-12 |
Polymerisable dental material and use of apatite fillers in the dental material
Grant 5,952,399 - Rentsch September 14, 1 | 1999-09-14 |
Auxiliary heating for motor vehicles with internal combustion engines
Grant 5,934,073 - Gieshoff , et al. August 10, 1 | 1999-08-10 |
Precipitated silicas
Grant 5,925,708 - Esch , et al. July 20, 1 | 1999-07-20 |
Preparation of crystalline microporous and mesoporous metal silicates, products produced thereby and use thereof
Grant 5,919,430 - Hasenzahl , et al. July 6, 1 | 1999-07-06 |
Shell catalysts, processes for their preparation and their use
Grant 5,900,386 - Freund , et al. May 4, 1 | 1999-05-04 |
Process for the preparation of 1,1,3-trialkoxypropane
Grant 5,892,129 - Hoepp , et al. April 6, 1 | 1999-04-06 |
Method of producing (S)-cyanohydrins
Grant 5,885,809 - Effenberger , et al. March 23, 1 | 1999-03-23 |
Method of producing zeolite y
Grant 5,880,053 - Roland , et al. March 9, 1 | 1999-03-09 |
Precipitated silica
Grant 5,871,867 - Rausch , et al. February 16, 1 | 1999-02-16 |
Process for separating the product gas mixture from the catalytic synthesis of methyl mercaptan
Grant 5,866,721 - Hofen , et al. February 2, 1 | 1999-02-02 |
Gas diffusion electrode for membrane fuel cells and method of its production
Grant 5,861,222 - Fischer , et al. January 19, 1 | 1999-01-19 |
Carbon black and processes for manufacturing
Grant 5,859,120 - Karl , et al. January 12, 1 | 1999-01-12 |
Process for the production of bis (silyorganyl) polysulphanes
Grant 5,859,275 - Munzenberg , et al. January 12, 1 | 1999-01-12 |
Catalyst, process for its preparation, and use for synthesis of methyl mercaptan
Grant 5,852,219 - Sauer , et al. December 22, 1 | 1998-12-22 |
Precipitated silica
Grant 5,851,502 - Turk , et al. December 22, 1 | 1998-12-22 |
Process for the production of primary and/or secondary amines from oxo compounds
Grant 5,852,217 - Haas , et al. December 22, 1 | 1998-12-22 |
Catalyst for the dehydrogenation of C.sub.6 -C.sub.15 paraffins and to a process for making such catalysts
Grant 5,849,657 - Rotgerink , et al. December 15, 1 | 1998-12-15 |
Precipitated silicas
Grant 5,846,506 - Esch , et al. December 8, 1 | 1998-12-08 |
Process for producing 2-hydroxy-4-methylthiobutyric acid (MHA) and its use as feed stuff supplement
Grant 5,847,207 - Suchsland , et al. December 8, 1 | 1998-12-08 |
Silver-iron material for electrical switching contacts (I)
Grant 5,841,044 - Weise , et al. November 24, 1 | 1998-11-24 |
Process for the preparation of an animal feed supplement based on fermentation broth
Grant 5,840,358 - Hofler , et al. November 24, 1 | 1998-11-24 |
Process for the production of malonic acid or a salt thereof
Grant 5,817,870 - Haas , et al. October 6, 1 | 1998-10-06 |
Catalyst, method of its production and its use for the production of vinyl acetate monomer
Grant 5,808,136 - Tacke , et al. September 15, 1 | 1998-09-15 |
Method for the directed modification of enzymes, modified enzymes and their use
Grant 5,798,234 - Engel , et al. August 25, 1 | 1998-08-25 |
Process for production of polypropylene terephthalate
Grant 5,798,433 - Schmidt , et al. August 25, 1 | 1998-08-25 |
Stirred-tank reactors and method of use
Grant 5,795,732 - Schilling , et al. August 18, 1 | 1998-08-18 |
Process for the production of hydrocyanic acid
Grant 5,785,942 - Hippel , et al. July 28, 1 | 1998-07-28 |
Prosthetic abutment for dental implants
Grant 5,779,480 - Groll , et al. July 14, 1 | 1998-07-14 |
Granules based on pyrogenically prepared silicon dioxide, methods for their preparation and use thereof
Grant 5,776,240 - Deller , et al. July 7, 1 | 1998-07-07 |
Process for the hydrogenolysis of C--O and C.dbd.O bonds in organic substances
Grant 5,773,677 - Lansink-Rotgerink , et al. June 30, 1 | 1998-06-30 |
Process for the preparation of D,L-methionine or the salt thereof
Grant 5,770,769 - Geiger , et al. June 23, 1 | 1998-06-23 |
Percarboxylic acid solutions with improved stability when in contact with stainless steel and process for producing said percarboxylic acid solutions
Grant 5,767,308 - Thiele , et al. June 16, 1 | 1998-06-16 |
Platinum-aluminum alloy catalyst for fuel cells and method of its production and use
Grant 5,767,036 - Freund , et al. June 16, 1 | 1998-06-16 |
Production of tryptophan by the bacterium Escherichia coli
Grant 5,756,345 - Camakaris , et al. May 26, 1 | 1998-05-26 |
Process for preparing an epoxide using a structured catalyst including microporous oxides of silicon, aluminum and titanium
Grant 5,756,778 - Thiele , et al. May 26, 1 | 1998-05-26 |
Heat-curable coating material
Grant 5,739,204 - Piana April 14, 1 | 1998-04-14 |
Microorganism, use thereof and process for the production of L-.alpha.-amino acids
Grant 5,714,355 - Wagner , et al. February 3, 1 | 1998-02-03 |
Silanized silicic acids
Grant 5,711,797 - Ettlinger , et al. January 27, 1 | 1998-01-27 |
Apparatus for the compression of powdered substances
Grant 5,711,215 - Sextl , et al. January 27, 1 | 1998-01-27 |
Method for the unilateral or bilateral sealing or filling of flow channels in an annular zone of a cylindrical honeycomb body
Grant 5,707,574 - Domesle , et al. January 13, 1 | 1998-01-13 |
Precipitated silicas, a process for their preparation and their use in vulcanizable rubber mixtures
Grant 5,705,137 - Goerl , et al. January 6, 1 | 1998-01-06 |
Transfer cap for dental implants
Grant 5,688,123 - Meiers , et al. November 18, 1 | 1997-11-18 |
Process for the production of 3-aminoethyl-3,5,5-trimethylcyclohexyl amine
Grant 5,679,860 - Haas , et al. October 21, 1 | 1997-10-21 |
Two-phase tooth implant
Grant 5,674,072 - Moser , et al. October 7, 1 | 1997-10-07 |
Enzymatic reactions and apparatus for carrying them out
Grant 5,670,332 - Kuhl , et al. September 23, 1 | 1997-09-23 |
Silanized silicon acids
Grant 5,665,156 - Ettlinger , et al. September 9, 1 | 1997-09-09 |
Process for the selective synthesis of silylalkyldisulphides
Grant 5,663,395 - Gobel , et al. September 2, 1 | 1997-09-02 |
Coated sodium percarbonate particles, a process for their production and detergent, cleaning and bleaching compositions containing them
Grant 5,658,873 - Bertsch-Frank , et al. August 19, 1 | 1997-08-19 |
Catalyst for the production of cyanopyriclines
Grant 5,658,844 - Hippel , et al. August 19, 1 | 1997-08-19 |
Method for the preparation of stabilized sodium percarbonate
Grant 5,632,965 - Klasen , et al. May 27, 1 | 1997-05-27 |
Method for location of insertion elements
Grant 5,633,154 - Schaefer , et al. May 27, 1 | 1997-05-27 |
Method of testing the heat insulation action of bodies especially of heat insulation bodies
Grant 5,622,430 - Pletka , et al. April 22, 1 | 1997-04-22 |
Animal feed additive based on fermentation broth, a process for its production and its use
Grant 5,622,710 - Binder , et al. April 22, 1 | 1997-04-22 |
Platinum plating bath
Grant 5,620,583 - Kuhn , et al. April 15, 1 | 1997-04-15 |
Method for the regeneration of a catalyst
Grant 5,620,935 - Thiele April 15, 1 | 1997-04-15 |
Method of preparing amionoakylhydantoins and aminoalkyl-alpha-amino acids
Grant 5,608,076 - Kottenhahn , et al. March 4, 1 | 1997-03-04 |
Method for the preparation of D-arginine and L-ornithine
Grant 5,591,613 - Makryaleas , et al. January 7, 1 | 1997-01-07 |
Precious-metal material for articles of jewelry and a method of manufacturing them
Grant 5,578,383 - Beyer , et al. November 26, 1 | 1996-11-26 |
System for accelerating the heating rate of a fixed bed catalyst by supplying supplemental energy
Grant 5,569,441 - Engler , et al. October 29, 1 | 1996-10-29 |
Method for producing granulated sodium percarbonate
Grant 5,560,896 - Bewersdorf , et al. October 1, 1 | 1996-10-01 |
Method of producing flexible plastic bands compounded with hard-material powders and/or soldering powders
Grant 5,547,625 - Gleissner , et al. August 20, 1 | 1996-08-20 |
New N-acyl dipeptides and their use
Grant 5,543,397 - Drauz , et al. August 6, 1 | 1996-08-06 |
Catalyst precursor for an activated raney metal fixed-bed catalyst, an activated raney metal fixed-bed catalyst and a process for its preparation and use, and a method of hydrogenating organic compounds using said catalyst
Grant 5,536,694 - Schuetz , et al. July 16, 1 | 1996-07-16 |
N-acyl dipeptides and their compositions
Grant 5,534,538 - Drauz , et al. July 9, 1 | 1996-07-09 |
Modified molecular sieves by means of solid ion exchange
Grant 5,529,964 - Weitkamp , et al. June 25, 1 | 1996-06-25 |
Catalyst for the selective hydrogenation of aromatic halonitro compounds to aromatic haloamines and a process for its production
Grant 5,512,529 - Deller , et al. April 30, 1 | 1996-04-30 |
Storage-stable encapsulated sodium percarbonate and process for its production
Grant 5,505,875 - Beaujean , et al. April 9, 1 | 1996-04-09 |
Toner containing pigment and surface modified pyrogenically produced aluminum oxide
Grant 5,501,933 - Deusser , et al. March 26, 1 | 1996-03-26 |
Process for uniform and reproducible shell impregnation of fixed bed catalyst supports in the form of loose particles
Grant 5,498,590 - Burmeister , et al. March 12, 1 | 1996-03-12 |
Coating dispersion for exhaust gas catalysts
Grant 5,496,788 - Domesle , et al. March 5, 1 | 1996-03-05 |
Detergent composition and method of use with surfactant, silicate, and polycarboxylate
Grant 5,494,488 - Arnoldi , et al. February 27, 1 | 1996-02-27 |
Process for the production of precipitated silica
Grant 5,484,581 - Esch , et al. January 16, 1 | 1996-01-16 |
Method for producing spherical granulated materials from powered solids and granulated materials produced thereby
Grant 5,480,626 - Klasen , et al. January 2, 1 | 1996-01-02 |
Method for producing sodium perborate monohydrate
Grant 5,478,544 - Schutte , et al. December 26, 1 | 1995-12-26 |
Shaped organosiloxane polycondensates, process for their preparation and use
Grant 5,466,767 - Wieland , et al. November 14, 1 | 1995-11-14 |
Method of regenerating mercury adsorption means
Grant 5,460,643 - Hasenpusch , et al. October 24, 1 | 1995-10-24 |
Process for impregnating a building material with an organosilicon compound
Grant 5,458,923 - Goebel , et al. October 17, 1 | 1995-10-17 |
Flame-hydrolytically produced titanium dioxide mixed oxide, method of its production and its use
Grant 5,451,390 - Hartmann , et al. September 19, 1 | 1995-09-19 |
Surface-modified silicon dioxides
Grant 5,429,873 - Deusser , et al. July 4, 1 | 1995-07-04 |
Process for the simultaneous production of 1,2- and 1,3-propanediol
Grant 5,426,249 - Haas , et al. June 20, 1 | 1995-06-20 |
Silicon-aluminum mixed oxide
Grant 5,424,258 - Mangold , et al. June 13, 1 | 1995-06-13 |
Method for coating a substrate of low resistance to corrosion
Grant 5,407,548 - Kopacz , et al. April 18, 1 | 1995-04-18 |
Method for the preparation of salts of L-ornithine
Grant 5,405,761 - Makryaleas , et al. April 11, 1 | 1995-04-11 |
Process for the production of plastic and rubber compositions filled with carbon black
Grant 5,401,789 - Wolff , et al. March 28, 1 | 1995-03-28 |
Process for the production of acrolein
Grant 5,387,720 - Neher , et al. February 7, 1 | 1995-02-07 |
Selective catalytic hydrogenation of aromatic aldehydes
Grant 5,387,726 - Bankmann , et al. February 7, 1 | 1995-02-07 |
Surface-modified pyrogenically produced aluminum oxide
Grant 5,384,194 - Deusser , et al. January 24, 1 | 1995-01-24 |
Silicon-aluminum mixed oxide
Grant 5,380,687 - Mangold , et al. January 10, 1 | 1995-01-10 |
Method of producing sulfonated organosilicon compounds and coresponding aqueous solutions
Grant 5,380,791 - Panster , et al. January 10, 1 | 1995-01-10 |
Use of isophoronediamine isomer mixtures in polyaddition resins
Grant 5,373,068 - Piana , et al. December 13, 1 | 1994-12-13 |
Surface-modified pyrogenically produced titanium dioxide
Grant 5,372,905 - Deusser , et al. December 13, 1 | 1994-12-13 |
Oxidative diesel control catalyst
Grant 5,371,056 - Leyrer , et al. December 6, 1 | 1994-12-06 |
Process for the preparation of 1,3-propanediol
Grant 5,364,987 - Haas , et al. November 15, 1 | 1994-11-15 |
Reduction in the quantity of NO.sub.x in lean exhaust gas of motor vehicle engines
Grant 5,354,720 - Leyrer , et al. October 11, 1 | 1994-10-11 |
Use of silver alloys as cadium-free brazing solder
Grant 5,352,542 - Voelcker , et al. October 4, 1 | 1994-10-04 |
Hydrating or oxidizing process using a metal-containing, shaped organosiloxane amine copolycondensate catalyst
Grant 5,352,791 - Panster , et al. October 4, 1 | 1994-10-04 |
Glass frits, a process for their production and their use in enamel barrier layers for stopping the migration of silver
Grant 5,350,718 - Anquetil , et al. September 27, 1 | 1994-09-27 |
Method for the degradation of harmful substances in water by means of hydrogen peroxide under UV irradiation
Grant 5,348,665 - Schulte , et al. September 20, 1 | 1994-09-20 |
Zinc-containing, lead- and cadmium-free glass frits, method of their production and their use
Grant 5,342,810 - Merigaud , et al. August 30, 1 | 1994-08-30 |
Gold(I) mercaptocarboxylic acid esters, method of their preparation and use
Grant 5,328,769 - Lotze , et al. July 12, 1 | 1994-07-12 |
Form body for heat insulation and vacuum insulation panel with asymmetric design
Grant 5,316,816 - Sextl , et al. May 31, 1 | 1994-05-31 |
Aqueous emulsions containing organosilicon compounds for the impregnation of inorganic materials
Grant 5,314,533 - Goebel , et al. May 24, 1 | 1994-05-24 |
Gold(I) mercaptocarboxylic acid esters, method of their preparation and use
Grant 5,312,480 - Lotze , et al. May 17, 1 | 1994-05-17 |
Catalyst for selective reduction of nitrous oxides with ammonia
Grant 5,300,472 - Brand , et al. * April 5, 1 | 1994-04-05 |
Palladium based alloy for dental applications
Grant 5,298,218 - Groll , et al. March 29, 1 | 1994-03-29 |
Process for applying nitride layers to titanium
Grant 5,292,555 - Preisser March 8, 1 | 1994-03-08 |
Process for the prepartion of 3-hydroxyalkanals
Grant 5,284,979 - Haas , et al. February 8, 1 | 1994-02-08 |
Process for the production of 3-hydroxyalkanals
Grant 5,276,201 - Haas , et al. January 4, 1 | 1994-01-04 |
Process for the production of catalytic gas permeable nets and process for oxidizing ammonia
Grant 5,268,157 - Blass , et al. December 7, 1 | 1993-12-07 |
Method and apparatus for the semi-continuous melting and discharging of ceramic material in an induction melting furnace with singering crust crucible
Grant 5,268,925 - Binder , et al. December 7, 1 | 1993-12-07 |
Precipitated silica paste
Grant 5,256,196 - Chjonowski , et al. October 26, 1 | 1993-10-26 |
Zirconium oxide powder, process for its preparation and its use
Grant 5,252,316 - Kriechbaum , et al. October 12, 1 | 1993-10-12 |
Tablets and granulates containing mesna as active substance
Grant 5,252,341 - Sauerbier , et al. October 12, 1 | 1993-10-12 |
Process for leaching precious metals with hydrogen-peroxide and a cyanide leaching solution
Grant 5,250,272 - Knorre , et al. October 5, 1 | 1993-10-05 |
Solder alloy for dental and jewelry parts
Grant 5,240,172 - Steinke , et al. August 31, 1 | 1993-08-31 |
Polyamide reinforced with silanized glass fibers
Grant 5,240,974 - Lechner , et al. August 31, 1 | 1993-08-31 |
Process for increasing pulp brightness with zeolites and easily decomposable organic chelating agents
Grant 5,227,022 - Leonhardt , et al. July 13, 1 | 1993-07-13 |
Pasty dental material which is an organopolysilane filler combined with a polymerizable bonding agent
Grant 5,219,899 - Panster , et al. June 15, 1 | 1993-06-15 |
Catalyst for the oxidation of sulfur dioxide and method for the production of the catalyst
Grant 5,215,953 - Blumrich , et al. June 1, 1 | 1993-06-01 |
Method for making grey-black inclusion pigments
Grant 5,205,866 - Kiss , et al. April 27, 1 | 1993-04-27 |
Plasmids from corynebacterium glutamicum and plasmid vectors derived therefrom
Grant 5,175,108 - Bachmann , et al. December 29, 1 | 1992-12-29 |
Cylindrically formed catalyst for the oxychlorination of ethylene
Grant 5,166,120 - Deller , et al. November 24, 1 | 1992-11-24 |
Process for the production of a seed mixture for the synthesis of faujasite
Grant 5,154,904 - Kleinschmit , et al. October 13, 1 | 1992-10-13 |
Pasty dental material
Grant 5,132,337 - Panster , et al. July 21, 1 | 1992-07-21 |
Method for preparation of gluconic acid by catalytic oxidation of glucose
Grant 5,132,452 - Deller , et al. July 21, 1 | 1992-07-21 |
Finely divided, precipitated silica with high structure, method of its preparation and use
Grant 5,123,964 - Kerner , et al. June 23, 1 | 1992-06-23 |
Method for the reduction of nitrogen oxides from waste gases using a zeolite
Grant 5,116,586 - Baacke , et al. May 26, 1 | 1992-05-26 |
Method for the production of fillers modified with organosilicon compounds, the fillers produced in this manner and their use
Grant 5,116,886 - Wolff , et al. May 26, 1 | 1992-05-26 |
Precipitated silicas and process for their production and use
Grant 5,110,574 - Reinhardt , et al. May 5, 1 | 1992-05-05 |
Formed organosiloxane amine copolycondensates method of their preparation and use
Grant 5,093,451 - Panster , et al. * March 3, 1 | 1992-03-03 |
Phosphate-free detergent builders
Grant 5,076,957 - Diehl , et al. December 31, 1 | 1991-12-31 |
Process for the production of acrolein by catalytic gas-phase oxidation of propene
Grant 5,072,052 - Boeck , et al. December 10, 1 | 1991-12-10 |
Method of lowering the AOX content in water
Grant 5,068,038 - Fischer , et al. November 26, 1 | 1991-11-26 |
Catalyst for the purification of exhaust gases of internal combustion engines with reduction of hydrogen sulfide emission
Grant 5,045,521 - Lox , et al. * September 3, 1 | 1991-09-03 |
Monolithic or honeycomb-type catalyst
Grant 5,043,311 - Engler , et al. August 27, 1 | 1991-08-27 |
Method and apparatus for measurement of the fluorescence relaxation period of a fluorescent substance
Grant 5,043,585 - Fehrenbach , et al. August 27, 1 | 1991-08-27 |
Method for the production of catalytically active coatings for the production of hydrogen cyanide
Grant 5,039,643 - Hecht , et al. August 13, 1 | 1991-08-13 |
Apparatus for controlling gas flows in vacuum furnaces
Grant 5,035,611 - Neubecker , et al. July 30, 1 | 1991-07-30 |
Finely, divided, precipitated silica with high structure, method of its preparation and use
Grant 5,034,207 - Kerner , et al. July 23, 1 | 1991-07-23 |
Molded articles based on pyrogenically prepared silicon dioxide, process for their production and their use
Grant 5,021,378 - Deller , et al. June 4, 1 | 1991-06-04 |
Molded articles based on pyrogenically prepared aluminum oxide and process for their production
Grant 5,015,615 - Deller , et al. May 14, 1 | 1991-05-14 |
Platinum-free three-way catalyst
Grant 5,013,705 - Koberstein , et al. May 7, 1 | 1991-05-07 |
Zirconium oxide powder
Grant 5,011,673 - Kriechbaum , et al. April 30, 1 | 1991-04-30 |
Molded articles based on pyrogenically produced mixed-oxide systems of silicon dioxide and aluminum oxide, a method for manufacturing them and their use
Grant 5,002,918 - Deller , et al. March 26, 1 | 1991-03-26 |
Organosiloxane amine copolycondensates, method of their preparation and use (I)
Grant 5,003,024 - Panster , et al. March 26, 1 | 1991-03-26 |
Rhodium-free three-way catalyst
Grant 5,001,103 - Koberstein , et al. March 19, 1 | 1991-03-19 |
Mixtures containing organosilicon compounds and their use for waterproofing and antimicrobial impregnation
Grant 4,999,249 - Deschler , et al. March 12, 1 | 1991-03-12 |
Organosiloxane amine copolycondensates, method of their preparation and use (II)
Grant 4,999,413 - Panster , et al. March 12, 1 | 1991-03-12 |
Method and spraying apparatus for applying a layer of air-sprayed concrete
Grant 4,993,884 - Mueller , et al. February 19, 1 | 1991-02-19 |
Rhenium-oxo-porphyrin complexes
Grant 4,987,226 - Buchler , et al. January 22, 1 | 1991-01-22 |
Process for the preparation of high-boiling acrylates and methacrylates
Grant 4,983,761 - Breuer , et al. January 8, 1 | 1991-01-08 |
Method for the catalytic conversion of waste gases containing hydrocarbon, halogenated hydrocarbon and carbon monoxide
Grant 4,983,366 - Deller , et al. January 8, 1 | 1991-01-08 |
Method for the dry cationization of starch II
Grant 4,981,958 - Stober , et al. * January 1, 1 | 1991-01-01 |
Method for dry-pelletizing carbon black and equipment to implement the method
Grant 4,980,106 - Vogel December 25, 1 | 1990-12-25 |
Browning utensil for microwave ovens
Grant 4,977,302 - Merigaud , et al. December 11, 1 | 1990-12-11 |
Method for the catalytic epoxidation of olefins with hydrogen peroxide
Grant 4,973,718 - Buchler , et al. * November 27, 1 | 1990-11-27 |
Method for leaching gold and/or silver out of ores or out of ore-concentrates and also out of precious-metal wastes or precious-metal scrap by using cyanide-containing leaching solutions
Grant 4,971,625 - Bahr November 20, 1 | 1990-11-20 |
Fiber-reinforced epoxide resins
Grant 4,968,560 - Lechner , et al. November 6, 1 | 1990-11-06 |
Process for the production of 1,2-dithiolan-3-pentanoic acid (thioctic acid) and 8-hydrocarbylthio-6-oxooctanoic acid
Grant 4,966,732 - Giray , et al. October 30, 1 | 1990-10-30 |
Method for the catalytic removal of nitrogen oxides from exhaust gases by means of a reducing agent
Grant 4,963,332 - Brand , et al. October 16, 1 | 1990-10-16 |
Method of preparing hydrogen cyanide
Grant 4,961,914 - Witzel , et al. October 9, 1 | 1990-10-09 |
Method of producing-coarse crystalline nicotinic acid with a high degree of purity
Grant 4,959,478 - Moller , et al. September 25, 1 | 1990-09-25 |
Formed, polymeric, tertiary or secondary organosiloxane amine compounds, methods of their preparation and use
Grant 4,954,599 - Panster , et al. September 4, 1 | 1990-09-04 |
Root post
Grant 4,952,150 - Schiwiora , et al. August 28, 1 | 1990-08-28 |
Method for the dry cationization of galactomannans (II)
Grant 4,940,784 - Stober , et al. July 10, 1 | 1990-07-10 |
Method of preparing cellulose ethers containing tertiary or quaternary nitrogen
Grant 4,940,785 - Stober , et al. July 10, 1 | 1990-07-10 |
Catalyst for the selective reduction of nitrogen oxides with ammonia
Grant 4,916,107 - Brand , et al. April 10, 1 | 1990-04-10 |
Fat, oil and grease flotation treatment of poultry and food industry waste water utilizing hydrogen peroxide
Grant 4,913,826 - Mannig , et al. April 3, 1 | 1990-04-03 |
Method of compressing pyrogenically prepared silicic acid
Grant 4,877,595 - Klingle , et al. October 31, 1 | 1989-10-31 |
Methods of preparing encapsulated pigments
Grant 4,874,433 - Kiss , et al. October 17, 1 | 1989-10-17 |
Graphite holding elements for heating bars in industrial furnaces
Grant 4,870,256 - Heise , et al. September 26, 1 | 1989-09-26 |
Heat treating a metallic workpiece by quenching under cooling gas under above atmospheric pressure and specified circulation rate
Grant 4,867,808 - Heilmann , et al. September 19, 1 | 1989-09-19 |
Catalysts for converting alcohols and/or aliphatic ether to unsaturated hydrocarbons and process for their production
Grant 4,861,937 - Baacke , et al. August 29, 1 | 1989-08-29 |
Process for working up the filtration residue of crude sodium prepared by fusion electrolysis into a high-purity sodium alcholate
Grant 4,857,665 - Hinrichs , et al. August 15, 1 | 1989-08-15 |
Process for preparing precipitated silica
Grant 4,857,289 - Nauroth , et al. August 15, 1 | 1989-08-15 |
Process for the detoxification of effluents from ore processing operations with hydrogen peroxide, using a magnetic pre-separation stage
Grant 4,851,129 - Griffiths , et al. July 25, 1 | 1989-07-25 |
Concentration of volatile compounds from solid or liquid material
Grant 4,846,935 - Giesselmann , et al. July 11, 1 | 1989-07-11 |
Method for the catalytic epoxidation of olefins with hydrogen peroxide
Grant 4,845,252 - Schmidt , et al. July 4, 1 | 1989-07-04 |
Method of preparing sulfenic acid chlorides and sulfenic acid esters
Grant 4,835,297 - Deschler , et al. May 30, 1 | 1989-05-30 |
Method and device for the continuous dosing of powdery substances by means of high-pressure gas
Grant 4,815,860 - Deuse March 28, 1 | 1989-03-28 |
Device for the containment of monolithic catalysts
Grant 4,814,146 - Brand , et al. March 21, 1 | 1989-03-21 |
Synergistic combination of amantadiene and selegiline
Grant 4,812,481 - Reischig , et al. March 14, 1 | 1989-03-14 |
Process and apparatus for granulating powdery materials
Grant 4,807,819 - Kreher , et al. February 28, 1 | 1989-02-28 |
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