Berthold Keggenhoff

Person

Krefeld, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Method for dividing fluid streams
- Patent number 10,143,987
- Issue date Dec 4, 2018
- Covestro Deutschland AG
- Berthold Keggenhoff
- F26 - DRYING
Information Patent Grant
Process for producing isocyanates
- Patent number 8,153,838
- Issue date Apr 10, 2012
- Bayer MaterialScience AG
- Andreas Bulan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for purification of anhydrous hydrogen chloride gas
- Patent number 7,555,917
- Issue date Jul 7, 2009
- Bayer MaterialScience LLC
- Bill L. Brady, Jr.
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process and apparatus for the production of phosgene
- Patent number 7,442,835
- Issue date Oct 28, 2008
- Bayer MaterialScience AG
- Berthold Keggenhoff
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Stirring device and process for carrying out a gas-liquid reaction
- Patent number 7,322,565
- Issue date Jan 29, 2008
- Bayer MaterialScience AG
- Rainer Buse
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for the production of di- and polyamines of the diphenylmet...
- Patent number 7,312,362
- Issue date Dec 25, 2007
- Bayer MaterialScience AG
- Berthold Keggenhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing aromatic amines
- Patent number 7,122,701
- Issue date Oct 17, 2006
- Bayer Aktiengesellschaft
- Berthold Keggenhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the purification of mixtures of toluenediisocyanate inc...
- Patent number 7,118,653
- Issue date Oct 10, 2006
- Bayer Aktiengesellschaft
- Bill Brady
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the purification of toluene diisocyanate incorporating...
- Patent number 7,108,770
- Issue date Sep 19, 2006
- Bayer Aktiengesellschaft
- Marcus Paul Grün
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the two-step production of dinitrotoluene
- Patent number 6,984,762
- Issue date Jan 10, 2006
- Bayer Aktiengesellschaft
- Erwin Dieterich
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for working up secondary components in the preparation of d...
- Patent number 6,953,869
- Issue date Oct 11, 2005
- Bayer MaterialScience AG
- Jürgen Münnig
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Process for working up the waste water obtained in the preparation...
- Patent number 6,936,741
- Issue date Aug 30, 2005
- Bayer MaterialScience AG
- Jürgen Münnig
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Process for purification of anhydrous hydrogen chloride gas
- Patent number 6,719,957
- Issue date Apr 13, 2004
- Bayer Corporation
- Bill L. Brady
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of toluylene diisocyanate, specific mix...
- Patent number 6,472,564
- Issue date Oct 29, 2002
- Bayer Aktiengesellschaft
- Klaus Biskup
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of toluylene diisocyanate, specific mix...
- Patent number 5,849,947
- Issue date Dec 15, 1998
- Bayer Aktiengesellschaft
- Klaus Biskup
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Mixer for mixing at least two free-flowing substances, especially t...
- Patent number 4,915,509
- Issue date Apr 10, 1990
- Bayer Aktiengesellschaft
- Heinz Sauer
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for the production of isocyanates
- Patent number 4,851,571
- Issue date Jul 25, 1989
- Bayer Aktiengesellschaft
- Heinz Sauer
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for purifying polyisocyanates and the polyisocyanates thus...
- Patent number 4,774,357
- Issue date Sep 27, 1988
- Bayer Aktiengesellschaft
- Berthold Keggenhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of polyisocyanates
- Patent number 4,745,216
- Issue date May 17, 1988
- Bayer Aktiengesellschaft
- Berthold Keggenhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of polyisocyanates
- Patent number 4,597,909
- Issue date Jul 1, 1986
- Bayer Aktiengesellschaft
- Berthold Keggenhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Non-aqueous dispersions of water-soluble polymers
- Patent number 4,299,755
- Issue date Nov 10, 1981
- Bayer Aktiengesellschaft
- Berthold Keggenhoff
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Use of an apparatus for continuous photopolymerization
- Patent number 4,211,751
- Issue date Jul 8, 1980
- Bayer Aktiengesellschaft
- Berthold Keggenhoff
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Bulk photo polymerization process for esters of acrylic and methacr...
- Patent number 4,141,806
- Issue date Feb 27, 1979
- Bayer Aktiengesellschaft
- Berthold Keggenhoff
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR THE PRODUCTION OF ISOCYANATES
- Publication number 20100298596
- Publication date Nov 25, 2010
- Bayer MaterialScience AG
- Berthold Keggenhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR DIVIDING FLUID STREAMS
- Publication number 20100071770
- Publication date Mar 25, 2010
- Bayer MaterialScience AG
- Berthold Keggenhoff
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PROCESS FOR PRODUCING ISOCYANATES
- Publication number 20090166180
- Publication date Jul 2, 2009
- Bayer MaterialScience AG
- Andreas Bulan
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
Process for the preparation of 4,4'-diphenylmethane diisocyanate
- Publication number 20080275269
- Publication date Nov 6, 2008
- Berthold Keggenhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for the production of isocyanates
- Publication number 20070265465
- Publication date Nov 15, 2007
- Bayer MaterialScience AG
- Berthold Keggenhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for the production of di-and polyamines of the diphenylmeth...
- Publication number 20070179317
- Publication date Aug 2, 2007
- Berthold Keggenhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for the production of 4,4'-diphenylmethane diisocyanate
- Publication number 20070117997
- Publication date May 24, 2007
- Bayer MaterialScience AG
- Berthold Keggenhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for producing isocyanates
- Publication number 20070012577
- Publication date Jan 18, 2007
- H.C. Starck GmbH
- Andreas Bulan
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
Process and apparatus for the production of phosgene
- Publication number 20060047170
- Publication date Mar 2, 2006
- Bayer MaterialScience AG
- Berthold Keggenhoff
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Stirring device and process for carrying out a gas-liquid reaction
- Publication number 20060038306
- Publication date Feb 23, 2006
- Bayer MaterialScience AG
- Rainer Buse
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Process for working up the waste water obtained in the preparation...
- Publication number 20040262238
- Publication date Dec 30, 2004
- Jurgen Munnig
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for working up secondary components in the preparation of d...
- Publication number 20040267062
- Publication date Dec 30, 2004
- Jurgen Munnig
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for the two-step production of dinitrotoluene
- Publication number 20040267061
- Publication date Dec 30, 2004
- Erwin Dieterich
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for preparing aromatic amines
- Publication number 20040249213
- Publication date Dec 9, 2004
- Berthold Keggenhoff
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for purification of anhydrous hydrogen chloride gas
- Publication number 20040163411
- Publication date Aug 26, 2004
- Bill L. Brady
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Process for the purification of toluenediisocyanate incorporating a...
- Publication number 20040118672
- Publication date Jun 24, 2004
- Marcus Paul Grun
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for the purification of mixtures of toluenediisocyanate inc...
- Publication number 20030230476
- Publication date Dec 18, 2003
- Bill Brady
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for purification of anhydrous hydrogen chloride gas
- Publication number 20030196764
- Publication date Oct 23, 2003
- Bill L. Brady
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Berthold Keggenhoff

Person

Patents Grantslast 30 patents

Method for dividing fluid streams

Process for producing isocyanates

Process for purification of anhydrous hydrogen chloride gas

Process and apparatus for the production of phosgene

Stirring device and process for carrying out a gas-liquid reaction

Process for the production of di- and polyamines of the diphenylmet...

Process for preparing aromatic amines

Process for the purification of mixtures of toluenediisocyanate inc...

Process for the purification of toluene diisocyanate incorporating...

Process for the two-step production of dinitrotoluene

Process for working up secondary components in the preparation of d...

Process for working up the waste water obtained in the preparation...

Process for purification of anhydrous hydrogen chloride gas

Process for the preparation of toluylene diisocyanate, specific mix...

Process for the preparation of toluylene diisocyanate, specific mix...

Mixer for mixing at least two free-flowing substances, especially t...

Process for the production of isocyanates

Process for purifying polyisocyanates and the polyisocyanates thus...

Process for the production of polyisocyanates

Process for the production of polyisocyanates

Non-aqueous dispersions of water-soluble polymers

Use of an apparatus for continuous photopolymerization

Bulk photo polymerization process for esters of acrylic and methacr...

Patents Applicationslast 30 patents

PROCESS FOR THE PRODUCTION OF ISOCYANATES

METHOD FOR DIVIDING FLUID STREAMS

PROCESS FOR PRODUCING ISOCYANATES

Process for the preparation of 4,4'-diphenylmethane diisocyanate

Process for the production of isocyanates

Process for the production of di-and polyamines of the diphenylmeth...

Process for the production of 4,4'-diphenylmethane diisocyanate

Process for producing isocyanates

Process and apparatus for the production of phosgene

Stirring device and process for carrying out a gas-liquid reaction

Process for working up the waste water obtained in the preparation...

Process for working up secondary components in the preparation of d...

Process for the two-step production of dinitrotoluene

Process for preparing aromatic amines

Process for purification of anhydrous hydrogen chloride gas

Process for the purification of toluenediisocyanate incorporating a...

Process for the purification of mixtures of toluenediisocyanate inc...

Process for purification of anhydrous hydrogen chloride gas