Ansmann; Andreas

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ansmann; Andreas.The latest application filed is for "supported catalyst for the selective hydrogenation of alkynes and dienes".

Company Profile

0.26.24

Ansmann; Andreas - Wiesloch DE

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Patent Activity

Patent	Date
Iron-containing material suitable for use as hydrogenation catalyst Grant 7,875,740 - Ansmann , et al. January 25, 2	2011-01-25
Supported catalyst for the selective hydrogenation of alkynes and dienes Grant 7,582,805 - Frenzel , et al. September 1, 2	2009-09-01
Method for purifying caprolactam Grant 7,501,047 - Luyken , et al. March 10, 2	2009-03-10
Method for reducing the content of an unsaturated amine in a mixture containing an amino nitrile, a diamine, a dinitrile or mixtures thereof Grant 7,385,073 - Maixner , et al. June 10, 2	2008-06-10
Carrier catalytic converter for the selective hydrogenation of alkines and dienes Grant 7,256,153 - Frenzel , et al. August 14, 2	2007-08-14
Supported Catalyst for the Selective Hydrogenation of Alkynes and Dienes App 20070142683 - FRENZEL; Andrea ; et al.	2007-06-21
Purification of caprolactam Grant 7,217,818 - Fischer , et al. May 15, 2	2007-05-15
Iron-containing oxidic material suitable for use as hydrogenation catalyst precursor Grant 7,115,781 - Ansmann , et al. October 3, 2	2006-10-03
Hydrogenation catalyst Grant 7,091,153 - Voit , et al. August 15, 2	2006-08-15
Method for purifying caprolactam App 20060090994 - Luyken; Hermann ; et al.	2006-05-04
Method for purifying caprolactam App 20060041122 - Fischer; Rolf-Hartmuth ; et al.	2006-02-23
Method for removing 6-aminocapronitrile from mixtures that contain 6-aminocapronitrile, adipodinitrile and hexamethylenediamine Grant 6,972,075 - Luyken , et al. December 6, 2	2005-12-06
Method for reducing the content of an unsaturated amine in a mixture containing an amino nitrile, a diamine, a dinitrile or mixtures thereof App 20050222449 - Maixner, Stefan ; et al.	2005-10-06
Method for generating catalysts Grant 6,905,997 - Ohlbach , et al. June 14, 2	2005-06-14
Method for separating ammonia from solutions containing caprolactam and ammonia Grant 6,896,772 - Luyken , et al. May 24, 2	2005-05-24
Process for the catalytic preparation of alkali metal alkoxides App 20050101806 - Schierle-Arndt, Kerstin ; et al.	2005-05-12
Method for producing a polymer, using caprolactam Grant 6,878,798 - Ohlbach , et al. April 12, 2	2005-04-12
Hydrogenation catalyst Grant 6,852,669 - Voit , et al. February 8, 2	2005-02-08
Iron-containing oxidic material suitable for use as hydrogenation catalyst precursor App 20040254070 - Ansmann, Andreas ; et al.	2004-12-16
Iron-containing material suitable for use as hydrogenation catalyst App 20040254059 - Ansmann, Andreas ; et al.	2004-12-16
Preparation of higher .alpha., .beta.-unsaturated alcohols Grant 6,828,468 - Ansmann , et al. December 7, 2	2004-12-07
Method for reducing the content of an unsaturated amine in a mixture containing an amine and a nitrile Grant 6,828,457 - Ohlbach , et al. December 7, 2	2004-12-07
Method for activating passivated iron Grant 6,815,388 - Ohlbach , et al. November 9, 2	2004-11-09
Hydrogenation catalyst App 20040181095 - Voit, Guido ; et al.	2004-09-16
Supported cobalt catalysts for nitrile hydrogenations Grant 6,790,996 - Ansmann , et al. September 14, 2	2004-09-14
Method for reducing the content of an unsaturated amine in a mixture containing an amine and a nitrile App 20040030174 - Ohlbach, Frank ; et al.	2004-02-12
Preparation of cyclic lactams Grant 6,686,465 - Ohlbach , et al. February 3, 2	2004-02-03
Method for the production of caprolactam Grant 6,683,180 - Ohlbach , et al. January 27, 2	2004-01-27
Preparation of cyclic lactams Grant 6,683,178 - Ohlbach , et al. January 27, 2	2004-01-27
Method for removing 6-aminocapronitrile from mixtures that contain 6-aminocapronitrile, adipodinitrile and hexamethylenediamine App 20040015004 - Luyken, Hermann ; et al.	2004-01-22
Hydrogenation of nitriles over Raney catalysts Grant 6,677,486 - Ansmann , et al. January 13, 2	2004-01-13
Method for generating catalysts App 20030181313 - Ohlbach, Frank ; et al.	2003-09-25
Method for the production of caprolactam App 20030153749 - Ohlbach, Frank ; et al.	2003-08-14
Method for producing a polymer, using caprolactam App 20030135019 - Ohlbach, Frank ; et al.	2003-07-17
Method for separating ammonia from solutions containing caprolactam and ammonia App 20030132098 - Luyken, Hermann ; et al.	2003-07-17
Method for producing cyclic lactams App 20030125544 - Ohlbach, Frank ; et al.	2003-07-03
Supported cobalt catalysts for nitrile hydrogenations App 20030120115 - Ansmann, Andreas ; et al.	2003-06-26
Method for producing cyclic lactams App 20030114664 - Ohlbach, Frank ; et al.	2003-06-19
Shell catalysts, method for producing the same, and the use thereof App 20030036476 - Arnold, Heiko ; et al.	2003-02-20
Carrier catalytic converter for theselective hydrogenation of alkines and dienes App 20030023121 - Frenzel, Andrea ; et al.	2003-01-30
Preparation of higher alpha, beta-unsaturated alcohols App 20020183565 - Ansmann, Andreas ; et al.	2002-12-05
Hydrogenation of nitriles over Raney catalysts Grant 6,469,211 - Ansmann , et al. October 22, 2	2002-10-22
Method for simultaneous preparation of 6-aminocapronitrile and hexamethylene diamine Grant 6,462,220 - Luyken , et al. October 8, 2	2002-10-08
Hydrogenation of nitriles over raney catalysts App 20020058842 - Ansmann, Andreas ; et al.	2002-05-16
Hydrogenation of nitriles over Raney catalysts App 20020058841 - Ansmann, Andreas ; et al.	2002-05-16
Preparation of C10-C30-alkenes by partial hydrogenation of alkynes over fixed-bed supported palladium catalysts Grant 6,365,790 - Reimer , et al. April 2, 2	2002-04-02
Preparation of C10-C30-alkenes by partial hydrogenation of alkynes over fixed-bed supported palladium catalysts App 20010039368 - Reimer, Klaus ; et al.	2001-11-08
Iron-based catalyst for hydrogenating alpha-, omega-dinitriles Grant 6,297,394 - Voit , et al. October 2, 2	2001-10-02
Hydrogenation catalyst App 20010025119 - Voit, Guido ; et al.	2001-09-27
Method for hydrogenating aliphatic alpha-, omega-dinitriles Grant 6,265,602 - Voit , et al. July 24, 2	2001-07-24