| Patent | Date |
|---|
Method for inhibiting unwanted radical polymerisation of acrylic acid present in a liquid phase P
Grant 11,447,439 - Janssen , et al. September 20, 2 | 2022-09-20 |
Method For Inhibiting Unwanted Radical Polymerisation Of Acrylic Acid Present In A Liquid Phase P
App 20210309598 - JANSSEN; Nicole ; et al. | 2021-10-07 |
Multimetal oxide compositions comprising Mo, Bi, Fe and Cu
Grant 10,682,631 - Amakawa , et al. | 2020-06-16 |
Column for thermal treatment of fluid mixtures
Grant 10,493,376 - Hammon , et al. De | 2019-12-03 |
Chimney tray for a column for thermal treatment of fluid mixtures
Grant 10,471,369 - Hammon , et al. Nov | 2019-11-12 |
Method Of Starting Up A Reactor For The Oxidative Dehydrogenation Of N-butenes
App 20190337870 - UNGELENK; JAN ; et al. | 2019-11-07 |
Column for thermal treatment of fluid mixtures
Grant 10,413,841 - Hammon , et al. Sept | 2019-09-17 |
MULTIMETAL OXIDE COMPOSITIONS COMPRISING Mo, Bi, Fe AND Cu
App 20190224651 - AMAKAWA; Kazuhiko ; et al. | 2019-07-25 |
Process and plant for recovering acrylic acid
Grant 10,343,969 - Hammon , et al. July 9, 2 | 2019-07-09 |
Reactor system and use thereof
Grant 10,239,033 - Hammon , et al. | 2019-03-26 |
Crossflow tray for a mass transfer column, mass transfer column and use of the mass transfer column
Grant 10,183,234 - Blaschke , et al. Ja | 2019-01-22 |
Apparatus and process for separating a target product from a liquid phase comprising the target product
Grant 10,173,147 - Heilek , et al. J | 2019-01-08 |
System and method for operating a liquid gas evaporator
Grant 10,174,935 - Hammon , et al. J | 2019-01-08 |
Process and plant for treatment of secondary components obtained in acrolein and/or (meth)acrylic acid production
Grant 10,093,551 - Hammon , et al. October 9, 2 | 2018-10-09 |
Method For Producing Catalysts Containing Chrome, For The Oxidative Dehydrogenation Of N-butenes To Form Butadiene While Avoiding Cr(vi) Intermediates
App 20180147561 - UNGELENK; Jan ; et al. | 2018-05-31 |
Column for thermal treatment of a fluid
Grant 9,958,201 - Hammon , et al. May 1, 2 | 2018-05-01 |
Oxidation catalyst with saddle-shaped support body
Grant 9,925,526 - Hammon , et al. March 27, 2 | 2018-03-27 |
Heat exchanger, reactor arrangement comprising this heat exchanger and method for controlling the temperature of a reactor
Grant 9,797,657 - Hammon , et al. October 24, 2 | 2017-10-24 |
Process And Plant For Recovering Acrylic Acid
App 20170267621 - HAMMON; Ulrich ; et al. | 2017-09-21 |
Mechanically stable hollow cylindrical shaped catalyst bodies for gas phase oxidation of an alkene to an unsaturated aldehyde and/or an unsaturated carboxylic acid
Grant 9,700,876 - Macht , et al. July 11, 2 | 2017-07-11 |
Process and plant for recovering acrylic acid
Grant 9,701,612 - Hammon , et al. July 11, 2 | 2017-07-11 |
Column For Thermal Treatment Of Fluid Mixtures
App 20170173492 - HAMMON; Ulrich ; et al. | 2017-06-22 |
Chimney Tray For A Column For Thermal Treatment Of Fluid Mixtures
App 20170173491 - HAMMON; Ulrich ; et al. | 2017-06-22 |
Extraction column and process for extracting a constituent from a fluid
Grant 9,643,910 - Hammon , et al. May 9, 2 | 2017-05-09 |
Plant and process for performance of heterogeneously catalyzed gas phase reactions
Grant 9,636,651 - Hammon , et al. May 2, 2 | 2017-05-02 |
Column For Thermal Treatment Of Fluid Mixtures, Especially Those Comprising (meth)acrylic Monomers
App 20170014729 - HAMMON; Ulrich ; et al. | 2017-01-19 |
Column For Thermal Treatment Of Fluid Mixtures, Especially Those Comprising (meth)acrylic Monomers
App 20170014730 - HAMMON; Ulrich ; et al. | 2017-01-19 |
Method Of Starting Up A Reactor For The Oxidative Dehydrogenation Of N-butenes
App 20160347686 - GRUNE; Philipp ; et al. | 2016-12-01 |
System and method for recovery of liquid or free-flowing chemicals
Grant 9,499,969 - Hammon , et al. November 22, 2 | 2016-11-22 |
Crossflow Tray For A Mass Transfer Column, Mass Transfer Column And Use Of The Mass Transfer Column
App 20160271516 - BLASCHKE; Tim ; et al. | 2016-09-22 |
Method for the restabilization of (meth)acrylic monomers
Grant 9,422,221 - Herfert , et al. August 23, 2 | 2016-08-23 |
Process And Plant For Recovering Acrylic Acid
App 20160090347 - HAMMON; Ulrich ; et al. | 2016-03-31 |
Process And Plant For Treatment Of Secondary Components Obtained In Acrolein And/or (meth)acrylic Acid Production
App 20160083267 - HAMMON; Ulrich ; et al. | 2016-03-24 |
Column For Thermal Treatment Of Fluid Mixtures
App 20160038852 - HAMMON; Ulrich ; et al. | 2016-02-11 |
Column For Thermal Treatment Of A Fluid
App 20160040929 - HAMMON; Ulrich ; et al. | 2016-02-11 |
Catalyst for preparation of an unsaturated carboxylic acid by gas phase oxidation of an unsaturated aldehyde
Grant 9,238,217 - Welker-Nieuwoudt , et al. January 19, 2 | 2016-01-19 |
System And Method For Operating A Liquid Gas Evaporator
App 20160010850 - HAMMON; Ulrich ; et al. | 2016-01-14 |
Plant And Process For Performance Of Heterogeneously Catalyzed Gas Phase Reactions
App 20150360191 - HAMMON; Ulrich ; et al. | 2015-12-17 |
Apparatus And Process For Separating A Target Product From A Liquid Phase Comprising The Target Product
App 20150360142 - HEILEK; Joerg ; et al. | 2015-12-17 |
Process for preparing an unsaturated aldehyde and/or an unsaturated carboxylic acid
Grant 9,169,188 - Macht , et al. October 27, 2 | 2015-10-27 |
Heat Exchanger, Reactor Arrangement Comprising This Heat Exchanger And Method For Controlling The Temperature Of A Reactor
App 20150267967 - HAMMON; Ulrich ; et al. | 2015-09-24 |
System And Method For Recovery Of Liquid Or Free-flowing Chemicals
App 20150267391 - HAMMON; Ulrich ; et al. | 2015-09-24 |
Reactor System And Use Thereof
App 20150266000 - HAMMON; Ulrich ; et al. | 2015-09-24 |
Oxidation Catalyst With Saddle-shaped Support Body
App 20150246343 - HAMMON; Ulrich ; et al. | 2015-09-03 |
Extraction Column And Process For Extracting A Constituent From A Fluid
App 20150166455 - HAMMON; Ulrich ; et al. | 2015-06-18 |
Thermal Separation Process
App 20150158011 - Mueller-Engel; Klaus Joachim ; et al. | 2015-06-11 |
Mechanically Stable Hollow Cylindrical Shaped Catalyst Bodies For Gas Phase Oxidation Of An Alkene To An Unsaturated Aldehyde And/or An Unsaturated Carboxylic Acid
App 20150133686 - Macht; Josef ; et al. | 2015-05-14 |
Process For Preparing An Unsaturated Aldehyde And/or An Unsaturated Carboxylic Acid
App 20150133687 - MACHT; Josef ; et al. | 2015-05-14 |
Thermal separation process
Grant 9,018,416 - Mueller-Engel , et al. April 28, 2 | 2015-04-28 |
Catalyst For Preparation Of An Unsaturated Carboxylic Acid By Gas Phase Oxidation Of An Unsaturated Aldehyde
App 20150080605 - WELKER-NIEUWOUDT; Cathrin Alexandra ; et al. | 2015-03-19 |
Process for transporting in the tank of a tank truck or tanker ship a liquid monomer phase withdrawn from a storage vessel
Grant 8,829,134 - Heilek , et al. September 9, 2 | 2014-09-09 |
Mo-, Bi- and Fe-comprising multimetal oxide compositions
Grant 8,686,194 - Macht , et al. April 1, 2 | 2014-04-01 |
Process For Mixing A Liquid Or Mixture Of A Liquid And A Fine Solid Present In An Essentially Self-containing Vessel
App 20140064017 - Blechschmitt; Michael ; et al. | 2014-03-06 |
Process for mixing a liquid or mixture of a liquid and a fine solid present in an essentially self-containing vessel
Grant 8,579,495 - Blechschmitt , et al. November 12, 2 | 2013-11-12 |
Thermal Separation Process
App 20130274519 - MUELLER-ENGEL; Klaus Joachim ; et al. | 2013-10-17 |
Preparation of acrylic acid by heterogeneously catalyzed partial gas phase oxidation of propylene
Grant 8,431,743 - Dieterle , et al. April 30, 2 | 2013-04-30 |
Process for preparing (meth)acrolein by heterogeneously catalyzed gas phase partial oxidation
Grant 8,399,711 - Macht , et al. March 19, 2 | 2013-03-19 |
Process for preparing at least one organic target compound by heterogeneously catalyzed gas phase partial oxidation
Grant 8,394,345 - Dieterle , et al. March 12, 2 | 2013-03-12 |
Mo-, Bi- And Fe-comprising Multimetal Oxide Compositions
App 20130023699 - Macht; Josef ; et al. | 2013-01-24 |
Process for preparing a catalyst consisting of a support body and a catalytically active composition applied on the surface of the support body
Grant 8,318,631 - Cremer , et al. November 27, 2 | 2012-11-27 |
Process for separating acrylic acid present as a main constituent and glyoxal present as a by-product in a product gas mixture of a partial heterogeneously catalyzed gas phase oxidation of a C3 precursor compound of acrylic acid
Grant 8,299,299 - Blum , et al. October 30, 2 | 2012-10-30 |
Process for mixing a liquid or mixture of a liquid and a fine solid present in an essentially self-containing vessel
Grant 8,292,194 - Blechschmitt , et al. October 23, 2 | 2012-10-23 |
Method For The Restabilization Of (meth)acrylic Monomers
App 20120074354 - Herfert; Norbert ; et al. | 2012-03-29 |
Process for operating a continuous removal of a target product X in the form of fine crystals of the target product X
Grant 8,106,240 - Heilek , et al. January 31, 2 | 2012-01-31 |
Process for starting-up a heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid or of methacrolein to methacrylic acid
Grant 8,076,510 - Hammon , et al. December 13, 2 | 2011-12-13 |
Process for continuously removing a target product X in the form of fine crystals
Grant 7,999,120 - Heilek , et al. August 16, 2 | 2011-08-16 |
Process For Preparing (meth)acrolein By Heterogeneously Catalyzed Gas Phase Partial Oxidation
App 20110130596 - MACHT; Josef ; et al. | 2011-06-02 |
Process for purifying removal of acrylic acid, methacrylic acid N-vinylpyrrolidone or P-xylene crystals from their suspension in mother liquor
Grant 7,947,845 - Heilek , et al. May 24, 2 | 2011-05-24 |
Process for storing a monomer phase which is liquid under the conditions of storage
Grant 7,893,178 - Heilek , et al. February 22, 2 | 2011-02-22 |
Process For Removal Of Acrylic Acid From The Product Gas Mixture Of A Heterogeneously Catalyzed Partial Gas Phase Oxidation Of At Least One C3 Precursor Compound
App 20110036704 - BLUM; Till ; et al. | 2011-02-17 |
Method Of Charging Catalyst Tubes Of A Bundle Of Catalyst Tubes In A Structured Fashion
App 20100197489 - DIETERLE; Martin ; et al. | 2010-08-05 |
Production of Water-Absorbent Resins
App 20100197877 - Funk; Rudiger ; et al. | 2010-08-05 |
Device for performing the purifying separation of crystals out of their suspension in a contaminated crystal melt
Grant 7,762,404 - Heilek , et al. July 27, 2 | 2010-07-27 |
Process for operating a continuous removal of a target product X in the form of fine crystals
Grant 7,732,624 - Heilek , et al. June 8, 2 | 2010-06-08 |
Method of charging catalyst tubes of a bundle of catalyst tubes in a structured fashion
Grant 7,731,916 - Dieterle , et al. June 8, 2 | 2010-06-08 |
Transportation of a Monomer Composition in a Transport Means or Pipe
App 20100056739 - Funk; Rudiger ; et al. | 2010-03-04 |
Process For Separating Acrylic Acid Present As A Main Constituent And Glyoxal Present As A By-product In A Product Gas Mixture Of A Partial Heterogeneously Catalyzed Gas Phase Oxidation Of A C3 Precursor Compound Of Acrylic Acid
App 20100022734 - Blum; Till ; et al. | 2010-01-28 |
Process for controlling a hydraulic wash column
Grant 7,637,965 - Heilek , et al. December 29, 2 | 2009-12-29 |
Process For Storing A Monomer Phase Which Is Liquid Under The Conditions Of Storage
App 20090221780 - Heilek; Joerg ; et al. | 2009-09-03 |
Process for preparing acrylic acid
Grant 7,566,804 - Diefenbacher , et al. July 28, 2 | 2009-07-28 |
Method for performing the purifying separation of crystals out their suspension in a mother liquor
Grant 7,540,884 - Hammon , et al. June 2, 2 | 2009-06-02 |
Thermal separating process
Grant 7,537,201 - Diehl , et al. May 26, 2 | 2009-05-26 |
Method for the rectifying separation of fluids containing (meth)acryl monomers
Grant 7,520,964 - Hammon , et al. April 21, 2 | 2009-04-21 |
Process for heterogeneously catalyzed gas phase partial oxidation of at least one organic starting compound
Grant 7,518,015 - Cremer , et al. April 14, 2 | 2009-04-14 |
Process For Operating A Continuous Removal Of A Target Product X In The Form Of Fine Crystals Of The Target Product X
App 20090076232 - HEILEK; Jorg ; et al. | 2009-03-19 |
Process For Operating A Continuous Removal Of A Target Product X In The Form Of Fine Crystals
App 20090076286 - HEILEK; Jorg ; et al. | 2009-03-19 |
Process For Continuously Removing A Target Product X In The Form Of Fine Crystals
App 20090076284 - Heilek; Joerg ; et al. | 2009-03-19 |
Process For Purifying Removal Of Acrylic Acid, Methacrylic Acid, N-vinylpyrrolidone Or P-xylene Crystals From Their Suspension In Mother Liquor
App 20090018347 - HEILEK; Jorg ; et al. | 2009-01-15 |
Process For Starting-up A Heterogeneously Catalyzed Partial Gas Phase Oxidation Of Acrolein To Acrylic Acid Or Of Methacrolein To Methacrylic Acid
App 20080269521 - HAMMON; Ulrich ; et al. | 2008-10-30 |
Process For Preparing At Least One Organic Target Compound By Heterogeneously Catalyzed Gas Phase Partial Oxidation
App 20080260605 - Dieterle; Martin ; et al. | 2008-10-23 |
Process for preparing at least one organic target compound by heterogeneously catalyzed gas phase partial oxidation
Grant 7,439,389 - Dieterle , et al. October 21, 2 | 2008-10-21 |
Process For Transporting In The Tank Of A Tank Truck Or Tanker Ship A Liquid Monomer Phase Withdrawn From A Storage Vessel
App 20080234446 - Heilek; Jorg ; et al. | 2008-09-25 |
Process For Preparing A Catalyst Consisting Of A Support Body And A Catalytically Active Composition Applied On The Surface Of The Support Body
App 20080214863 - CREMER; Ulrich ; et al. | 2008-09-04 |
Process For Preparing Acrylic Acid
App 20080183014 - DIEFENBACHER; Armin ; et al. | 2008-07-31 |
Thermal separating process for removing at least one stream containing enriched (meth) acrylic monomers
Grant 7,393,436 - Eck , et al. July 1, 2 | 2008-07-01 |
Process For Mixing A Liquid Or Mixture Of A Liquid And A Fine Solid Present In An Essentially Self-containing Vessel
App 20080074944 - Blechschmitt; Michael ; et al. | 2008-03-27 |
Process For Mixing A Liquid Or Mixture Of A Liquid And A Fine Solid Present In An Essentially Self-containing Vessel
App 20080073444 - BLECHSCHMITT; Michael ; et al. | 2008-03-27 |
Tray column and method for mass transfer in a tray column
Grant 7,347,413 - Diefenbacher , et al. March 25, 2 | 2008-03-25 |
Cleaning of tray columns which have been used for rectificatively treating liquids comprising (meth)acrylic acid and/or esters thereof
Grant 7,331,354 - Schroeder , et al. February 19, 2 | 2008-02-19 |
Method of purifying a raw melt of at least one monomer by crystallization
Grant 7,319,166 - Hammon , et al. January 15, 2 | 2008-01-15 |
Process For Heterogeneously Catalyzed Gas Phase Partial Oxidation Of At Least One Organic Starting Compound
App 20070155988 - Cremer; Ulrich ; et al. | 2007-07-05 |
Multi-tube fixed-bed reactor, especially for catalytic gas phase reactions
Grant 7,226,567 - Olbert , et al. June 5, 2 | 2007-06-05 |
Operation of a continuous heterogeneously catalyzed gas phase partial oxidation of at least one organic compound
Grant 7,196,217 - Schliephake , et al. March 27, 2 | 2007-03-27 |
Process For Covering The Demand For Polymers I Which Comprise At Least 90% Of Their Weight Of Acrylic Acid, Salts Thereof And/or Alkyl Esters Of Acrylic Acid In Free-radically Polymerized Form
App 20070037947 - HAMMON; Ulrich ; et al. | 2007-02-15 |
Method for releasably connecting a column plate to a supporting ring in a column via a clamp
Grant 7,155,801 - Hammon , et al. January 2, 2 | 2007-01-02 |
Thermal separating process
Grant 7,150,809 - Diehl , et al. December 19, 2 | 2006-12-19 |
Use of an ionic liquid
App 20060251961 - Olbert; Gerhard ; et al. | 2006-11-09 |
Method for the production of a purified melt of at least one monomer
Grant 7,129,376 - Hammon , et al. October 31, 2 | 2006-10-31 |
Process for controlling a hydraulic wash column
App 20060237356 - Heilek; Jorg ; et al. | 2006-10-26 |
Riser base
Grant 7,118,654 - Hammon , et al. October 10, 2 | 2006-10-10 |
Hydraulically sealed crossflow mass transfer tray
Grant 7,118,098 - Thiel , et al. October 10, 2 | 2006-10-10 |
Heterogeneously catalyzed gas-phase partial oxidation of at least one organic compound
Grant 7,115,776 - Hammon , et al. October 3, 2 | 2006-10-03 |
Thermal separating process
App 20060213758 - Diehl; Volker ; et al. | 2006-09-28 |
Method for producing acrylic acid
Grant 7,109,328 - Hammon , et al. September 19, 2 | 2006-09-19 |
Collecting Tray With Low Heat Transfer Coefficient For A Rectification Column
App 20060197240 - DIEFENBACHER; Armin ; et al. | 2006-09-07 |
Process for preparing at least one organic target compound by heterogeneously catalyzed gas phase partial oxidation
App 20060199975 - Dieterle; Martin ; et al. | 2006-09-07 |
Safe operation of a continuous heterogeneously catalyzed gas-phase partial oxidation of at least one organic compound
Grant 7,074,955 - Hammon , et al. July 11, 2 | 2006-07-11 |
Tray column and method for mass transfer in a tray column
App 20060131766 - Diefenbacher; Armin ; et al. | 2006-06-22 |
Method of charging catalyst tubes of a bundle of catalyst tubes in a structured fashion
App 20060045825 - Dieterle; Martin ; et al. | 2006-03-02 |
Method for the catalytic gas phase oxidation of propene into acrylic acid
Grant 6,998,504 - Unverricht , et al. February 14, 2 | 2006-02-14 |
Preparation of acrylic acid by heterogeneously catalyzed partial gas phase oxidation of propylene
App 20060004229 - Dieterle; Martin ; et al. | 2006-01-05 |
Preparation of at least one organic compound by heterogeneously catalyzed partial gas-phase oxidation
Grant 6,958,414 - Schliephake , et al. October 25, 2 | 2005-10-25 |
Method for the rectifying separation of fluids containing (meth)acryl monomers
App 20050211542 - Hammon, Ulrich ; et al. | 2005-09-29 |
Preparation of acrylic acid
Grant 6,939,991 - Thiel , et al. September 6, 2 | 2005-09-06 |
Method for producing acrylic acid
App 20050143604 - Hammon, Ulrich ; et al. | 2005-06-30 |
Method for the measurement of the pressure in a gas phase from rectification and/or absorption columns comprising (meth)acrylic acid the esters and/or nitriles thereof
App 20050124075 - Hammon, Ulrich ; et al. | 2005-06-09 |
Method for cleaning plate columns used for rectifying liquids containing (meth)acrylic acid and/or the esters thereof
App 20050115590 - Schroeder, Juergen ; et al. | 2005-06-02 |
Removal of solids from tubes of a tube bundle heat exchanger
App 20050109377 - Schliephake, Volker ; et al. | 2005-05-26 |
Thermal separating process for removing at least one stream containing enriched (meth) acrylic monomers
App 20050090628 - Eck, Bernd ; et al. | 2005-04-28 |
Method for producing propylene hydroformylation products and acrylic acid and/or acrolein
Grant 6,864,391 - Krokoszinski , et al. March 8, 2 | 2005-03-08 |
Operation of a continuous heterogeneously catalyzed gas phase partial oxidation of at least one organic compound
App 20050032918 - Schliephake, Volker ; et al. | 2005-02-10 |
Riser base
App 20050023125 - Hammon, Ulrich ; et al. | 2005-02-03 |
Clamp for releasably connecting a column plate to a supporting ring in a column
App 20050005418 - Hammon, Ulrich ; et al. | 2005-01-13 |
Thermal separating process for removing at least one stream containing enriched (meth)acrylic monomers
App 20050006219 - Eck, Bernd ; et al. | 2005-01-13 |
Device for performing the purifying separation of crystals out of their suspension in a contaminated crystal melt
App 20050006299 - Heilek, Jorg ; et al. | 2005-01-13 |
Method for performing the purifying separation of crystals out their suspension in a mother liquor
App 20040256319 - Hammon, Ulrich ; et al. | 2004-12-23 |
Thermal separating process
App 20040206617 - Diehl, Volker ; et al. | 2004-10-21 |
Rectification of (meth)acrylic acid with the addition of a tenside
Grant 6,806,385 - Hammon , et al. October 19, 2 | 2004-10-19 |
Method for the production of a purified melt of at least one monomer
App 20040147763 - Hammon, Ulrich ; et al. | 2004-07-29 |
Method of purifying a raw melt of at least one monomer by crystallization
App 20040133015 - Hammon, Ulrich ; et al. | 2004-07-08 |
Preparation of at least one organic compound by heterogeneously catalyzed partial gas-phase oxidation
App 20040116730 - Schliephake, Volker ; et al. | 2004-06-17 |
Hydraulically sealed crossflow mass transfer tray
App 20040097756 - Thiel, Joachim ; et al. | 2004-05-20 |
Preparation of acrylic acid
App 20040073063 - Thiel, Joachim ; et al. | 2004-04-15 |
Method for producing (meth) acrylic acid
App 20040050679 - Hammon, Ulrich ; et al. | 2004-03-18 |
Safe operation of a continuous heterogeneously catalyzed gas-phase partial oxidation of at least one organic compound
App 20040015012 - Hammon, Ulrich ; et al. | 2004-01-22 |
Heterogeneously catalyzed gas-phase partial oxidation of at least one organic compound
App 20040015013 - Hammon, Ulrich ; et al. | 2004-01-22 |
Temperature measurements in tubular reactors during treatment of fluid masses
Grant 6,657,088 - Schliephake , et al. December 2, 2 | 2003-12-02 |
Complexes of pyridyldiimines with vanadium and other transition metals, and their use as olefin oligomerization and polymerization catalysts
App 20030144438 - Schmidt, Roland ; et al. | 2003-07-31 |
Complexes of pyridldiimines with vanadium and other transition metals, and their use as olefin oligomerization and polymerization catalysts
Grant 6,458,905 - Schmidt , et al. October 1, 2 | 2002-10-01 |
Method for the catalytic gas phase oxidation of acrolein into acrylic acid
Grant 6,403,829 - Unverricht , et al. June 11, 2 | 2002-06-11 |
Method for the catalytic gas phase oxidation of propene into acrolein
Grant 6,395,936 - Arnold , et al. May 28, 2 | 2002-05-28 |
Apparatus for measuring temperatures in tubular reactors
App 20020061267 - Schliephake, Volker ; et al. | 2002-05-23 |
Method for removing by-products obtained when producing acrylic acid or methacrylic acids
Grant 6,348,638 - Schliephake , et al. February 19, 2 | 2002-02-19 |
Apparatus for measuring temperatures in tubular reactors
Grant 6,333,011 - Schliephake , et al. December 25, 2 | 2001-12-25 |
Separation of (meth)acrylic acid by rectification
Grant 6,228,227 - Herbst , et al. May 8, 2 | 2001-05-08 |
Separation of (meth) acrylic acid by rectification
Grant 5,961,790 - Herbst , et al. October 5, 1 | 1999-10-05 |
Catalytic gas-phase oxidation of propene to acrolein
Grant 5,821,390 - Ruppel , et al. October 13, 1 | 1998-10-13 |
Catalytic gas-phase oxidation of acrolein to acrylic acid
Grant 5,739,391 - Ruppel , et al. April 14, 1 | 1998-04-14 |
Process for the fractional separation of (meth)acrylic acid from a mixture containing (meth)acrylic acid
Grant 5,637,222 - Herbst , et al. June 10, 1 | 1997-06-10 |
Compositions of the formula Mo.sub.12 P.sub.a V.sub.b X.sup.1 c X.sup.2 d X.sup.3 e Sb.sub.f Re.sub.g S.sub.h O.sub.n
Grant 5,221,767 - Boehning , et al. June 22, 1 | 1993-06-22 |
Preparation of hard, fracture-resistant catalysts from zeolite powder
Grant 4,594,332 - Hoelderich , et al. June 10, 1 | 1986-06-10 |
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