| Patent | Date |
|---|
Process for modifying hydrophilic polymers
Grant 6,300,423 - Engelhardt , et al. October 9, 2 | 2001-10-09 |
Low-dusting pulverulent hydrophilic polymers
Grant 5,681,878 - Klotzsche , et al. October 28, 1 | 1997-10-28 |
Use of 2- (N-(2-aminoethyl)amino) acetic acid derivatives
Grant 5,679,704 - Schonafinger , et al. October 21, 1 | 1997-10-21 |
Polycondensates containing phosphinic and phosphonic acid groups
Grant 5,530,093 - Engelhardt , et al. June 25, 1 | 1996-06-25 |
2-(N-(2-aminomethyl)amino)acetic acid derivatives to inhibit advanced glycosylation
Grant 5,500,436 - Schonafinger , et al. March 19, 1 | 1996-03-19 |
Hydroxymethylfurazancarboxylic acid derivatives
Grant 5,486,531 - Schonafinger , et al. January 23, 1 | 1996-01-23 |
Aspartic acid derivatives, and their use for inhibiting platelete aggregation
Grant 5,399,570 - Klingler , et al. March 21, 1 | 1995-03-21 |
Hydrophilic, highly swellable hydrogels
Grant 5,331,059 - Engelhardt , et al. * July 19, 1 | 1994-07-19 |
Process for the preparation of pyrrole derivates
Grant 5,290,947 - Zoller , et al. March 1, 1 | 1994-03-01 |
Binder for liquids
Grant 5,278,206 - Gobel , et al. January 11, 1 | 1994-01-11 |
Process for the storage and transportation of liquid hydrocarbons
Grant 5,276,248 - Engelhardt , et al. January 4, 1 | 1994-01-04 |
Process and apparatus for preparing a solution of a non-ferrous metal sulphonate
Grant 5,162,555 - Remmers , et al. November 10, 1 | 1992-11-10 |
Water-soluble trisazo dyes
Grant 5,110,917 - Bauer , et al. May 5, 1 | 1992-05-05 |
Blue azo dyestuff mixture for strong blue color on hydrophobic fibers
Grant 5,071,443 - Buhler , et al. December 10, 1 | 1991-12-10 |
Alkenylphosphonic and --phosphinic acid esters, process for their preparation, hydrogels produced using them, and their use
Grant 5,066,745 - Engelhardt , et al. November 19, 1 | 1991-11-19 |
Pyrrolealdehydes, their preparation and their use
Grant 5,043,348 - Zoller , et al. August 27, 1 | 1991-08-27 |
Alkenylphosphonic and -phosphinic acid esters, process for their preparation, hydrogels produced using them, and their use
Grant 4,959,441 - Engelhardt , et al. September 25, 1 | 1990-09-25 |
Use of 2-oxo-1-pyrrolidineacetamide for the determination of the glomerular filtration rate in humans
Grant 4,908,202 - Schulz March 13, 1 | 1990-03-13 |
Methylolated and optionally etherified urethanes containing fluoroalkyl ligands
Grant 4,877,540 - Engelhardt , et al. October 31, 1 | 1989-10-31 |
4,5-dihydro-3(2H)-pyridazinones and their pharmacological use
Grant 4,816,454 - Zoller , et al. March 28, 1 | 1989-03-28 |
Process for the preparation of a hydrogel which is largely free from monomers
Grant 4,794,166 - Engelhardt , et al. December 27, 1 | 1988-12-27 |
Sulphonamide derivatives and their preparation and use
Grant 4,764,570 - Piesch , et al. August 16, 1 | 1988-08-16 |
Copolymer, process for its preparation, and its use
Grant 4,753,999 - Keil , et al. June 28, 1 | 1988-06-28 |
Water-soluble polycoesters, process for their preparation, and their use
Grant 4,736,014 - Engelhardt , et al. April 5, 1 | 1988-04-05 |
Process for the preparation of 2,4-dinitrophenyl ethers
Grant 4,695,656 - Reh , et al. September 22, 1 | 1987-09-22 |
Tetrahydropyridazinone derivatives, processes for their preparation and their use
Grant 4,666,902 - Zoller , et al. May 19, 1 | 1987-05-19 |
Substituted piperazin-1-yl-acetic acid amides
Grant 4,610,984 - Schonafinger , et al. September 9, 1 | 1986-09-09 |
2-(aryl substitued)piperazinones and nootropic compositions based thereon
Grant 4,598,079 - Beyerle , et al. July 1, 1 | 1986-07-01 |
Phosphonic acid cross-linked hydrophilic copolymers
Grant 4,585,845 - Engelhardt , et al. April 29, 1 | 1986-04-29 |
Mixtures of monoazo dyestuffs
Grant 4,582,509 - Buhler , et al. April 15, 1 | 1986-04-15 |
Substituted 1,4-dihydropyridines and their use as medicaments
Grant 4,558,058 - Scho/ nafinger , et al. December 10, 1 | 1985-12-10 |
Copolymer, a process for its preparation and its use as a sorbent
Grant 4,552,905 - Keil , et al. November 12, 1 | 1985-11-12 |
Encapsulated salts of acid particles wherein the salt particles are surrounded by a polyurethane/polyurea casing
Grant 4,547,429 - Greiner , et al. October 15, 1 | 1985-10-15 |
Carrier materials coated with amino resin dispersions, and their further processing into laminates
Grant 4,533,590 - Dorries , et al. August 6, 1 | 1985-08-06 |
Amino resin dispersions
Grant 4,532,292 - Dorries , et al. July 30, 1 | 1985-07-30 |
Crosslinking agents for water-swellable polymers
Grant 4,522,997 - Schmitz , et al. June 11, 1 | 1985-06-11 |
Metal chelates of water soluble copolymers
Grant 4,518,745 - Engelhardt , et al. May 21, 1 | 1985-05-21 |
Cross-linkable and cross linked macromolecular compositions wherein cross-linking is by structural bridges of the formula --NR.sup.x --CH.dbd.N--CO-- and their preparation
Grant 4,507,440 - Engelhardt , et al. March 26, 1 | 1985-03-26 |
Water soluble copolymers for use in fracture-acidizing of wells
Grant 4,500,437 - Engelhardt , et al. February 19, 1 | 1985-02-19 |
Water soluble, crosslinkable polymer compositions, their preparation and use
Grant 4,499,232 - Engelhardt , et al. February 12, 1 | 1985-02-12 |
Water-dispersible polyester, its preparation, and its use as a hydrophiling agent
Grant 4,463,165 - Engelhardt , et al. July 31, 1 | 1984-07-31 |
Agent and method for deoiling sand and rock masses
Grant 4,451,631 - Engelhardt , et al. May 29, 1 | 1984-05-29 |
Water-insoluble monoazo dyestuffs and their preparation
Grant 4,440,681 - Tappe , et al. April 3, 1 | 1984-04-03 |
Process for the manufacture of sulphur which can be recycled
Grant 4,418,014 - Daniek * November 29, 1 | 1983-11-29 |
Water-soluble copolymer and its preparation
Grant 4,357,245 - Engelhardt , et al. November 2, 1 | 1982-11-02 |
Dyeing of mixed fibers
Grant 4,323,363 - Brachten , et al. April 6, 1 | 1982-04-06 |
Water-soluble copolymer of acrylamidomethylpropanesulfonic acids salts
Grant 4,309,523 - Engelhardt , et al. January 5, 1 | 1982-01-05 |
Melamine resin, process for its manufacture and its use for the manufacture of coated wood-based materials and laminates
Grant 4,250,282 - Dorries , et al. February 10, 1 | 1981-02-10 |
Preparation of methoxy-methyl melamines
Grant 4,223,141 - Honel , et al. September 16, 1 | 1980-09-16 |
Soluble trisazo dyestuffs containing a 2-phenyl-benzimidazolyl, -benzoxazolyl or -benzthiazolyl middle component
Grant 4,144,231 - Bauer , et al. March 13, 1 | 1979-03-13 |
Soluble trisazo dyestuffs containing a 2-phenyl-benzimidazolyl, -benzoxazolyl or -benzthiazolyl middle component
Grant 4,144,230 - Bauer , et al. March 13, 1 | 1979-03-13 |
Preparation of melamine derivatives
Grant 4,143,016 - Honel , et al. March 6, 1 | 1979-03-06 |
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