Hartmut Knofel

Person

Odenthal-Erberich, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Fractionation and purification of aromatic polyamine mixtures and t...
- Patent number 5,684,180
- Issue date Nov 4, 1997
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fractionation and purification of aromatic polyamine mixtures and t...
- Patent number 5,679,840
- Issue date Oct 21, 1997
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fractionation and purification of aromatic polyamine mixtures and t...
- Patent number 5,679,841
- Issue date Oct 21, 1997
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fractionation and purification of aromatic polyamine mixtures and t...
- Patent number 5,675,035
- Issue date Oct 7, 1997
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fractionation and purification of mixtures of aromatic polyamines a...
- Patent number 5,672,737
- Issue date Sep 30, 1997
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fractionation and purification of aromatic polyamine mixtures and t...
- Patent number 5,663,424
- Issue date Sep 2, 1997
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fractionation and purification of aromatic polyamine mixtures and t...
- Patent number 5,648,519
- Issue date Jul 15, 1997
- Bayer Aktiengesesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fractionation and purification of aromatic polyamine and the use th...
- Patent number 5,648,520
- Issue date Jul 15, 1997
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of polynuclear aromatic polyamines
- Patent number 5,359,141
- Issue date Oct 25, 1994
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of polynuclear aromatic polyamines
- Patent number 5,196,591
- Issue date Mar 23, 1993
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of polyisocyanates
- Patent number 5,043,471
- Issue date Aug 27, 1991
- Bayer Aktiengesellschaft
- Gunter Hammen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of polynuclear aromatic polyamines
- Patent number 4,924,028
- Issue date May 8, 1990
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of multinuclear aromatic polyamines
- Patent number 4,914,236
- Issue date Apr 3, 1990
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cycloaliphatic diisocyanates, optionally in the form of isomeric mi...
- Patent number 4,879,409
- Issue date Nov 7, 1989
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cycloaliphatic diisocyanates optionally in the form of isomer mixtu...
- Patent number 4,879,408
- Issue date Nov 7, 1989
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Dissocyanates, diisocyanate mixtures and a process for their produc...
- Patent number 4,786,751
- Issue date Nov 22, 1988
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Diisocyanates and diisocyanate mixtures based on diphenylmethane, p...
- Patent number 4,761,498
- Issue date Aug 2, 1988
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Diamines and a process for their production
- Patent number 4,720,582
- Issue date Jan 19, 1988
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Isocyanato-isocyanurate derivatives
- Patent number 4,698,424
- Issue date Oct 6, 1987
- Bayer Aktiengesellschaft
- Theodor Engbert
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Continuous process for thermal splitting of carbamic acid esters
- Patent number 4,692,550
- Issue date Sep 8, 1987
- Bayer Aktiengesellschaft
- Theodor Engbert
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Cycloaliphatic triisocyanates
- Patent number 4,675,437
- Issue date Jun 23, 1987
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyisocyanates of the diphenyl methane series
- Patent number 4,613,687
- Issue date Sep 23, 1986
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Triisocyanates and a process for their preparation
- Patent number 4,603,189
- Issue date Jul 29, 1986
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of N- and O-substituted diurethanes and...
- Patent number 4,593,117
- Issue date Jun 3, 1986
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Diisocyanates of the diphenyl methane series and processes for the...
- Patent number 4,587,058
- Issue date May 6, 1986
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of polyisocyanates
- Patent number 4,405,527
- Issue date Sep 20, 1983
- Bayer Aktiengesellschaft
- Gerhard Wegener
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of mixtures of polyamines of the polyam...
- Patent number 4,259,526
- Issue date Mar 31, 1981
- Bayer Aktiengesellschaft
- Kenneth L. Dunlap
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of monoisocyanate
- Patent number 4,231,952
- Issue date Nov 4, 1980
- Bayer Aktiengesellschaft
- Hartmut Knofel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of polyamines
- Patent number 4,147,724
- Issue date Apr 3, 1979
- Bayer Aktiengesellschaft
- Hartmut Knofel

Hartmut Knofel

Person

Patents Grantslast 30 patents

Fractionation and purification of aromatic polyamine mixtures and t...

Fractionation and purification of aromatic polyamine mixtures and t...

Fractionation and purification of aromatic polyamine mixtures and t...

Fractionation and purification of aromatic polyamine mixtures and t...

Fractionation and purification of mixtures of aromatic polyamines a...

Fractionation and purification of aromatic polyamine mixtures and t...

Fractionation and purification of aromatic polyamine mixtures and t...

Fractionation and purification of aromatic polyamine and the use th...

Process for the production of polynuclear aromatic polyamines

Process for the production of polynuclear aromatic polyamines

Process for the preparation of polyisocyanates

Process for the production of polynuclear aromatic polyamines

Process for the preparation of multinuclear aromatic polyamines

Cycloaliphatic diisocyanates, optionally in the form of isomeric mi...

Cycloaliphatic diisocyanates optionally in the form of isomer mixtu...

Dissocyanates, diisocyanate mixtures and a process for their produc...

Diisocyanates and diisocyanate mixtures based on diphenylmethane, p...

Diamines and a process for their production

Isocyanato-isocyanurate derivatives

Continuous process for thermal splitting of carbamic acid esters

Cycloaliphatic triisocyanates

Polyisocyanates of the diphenyl methane series

Triisocyanates and a process for their preparation

Process for the preparation of N- and O-substituted diurethanes and...

Diisocyanates of the diphenyl methane series and processes for the...

Process for the preparation of polyisocyanates

Process for the preparation of mixtures of polyamines of the polyam...

Process for the production of monoisocyanate

Process for the preparation of polyamines