Sigberg Pfohl

Person

Speyer, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Coloring paper
- Patent number 5,131,981
- Issue date Jul 21, 1992
- BASF Aktiengesellschaft
- Erwin Hahn
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Water-soluble copolymers containing vinylamine units as wet strengt...
- Patent number 4,978,427
- Issue date Dec 18, 1990
- BASF Aktiengesellschaft
- Sigberg Pfohl
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Preparation of water-soluble copolymers containing vinylamine units...
- Patent number 4,880,497
- Issue date Nov 14, 1989
- BASF Aktiengesellschaft
- Sigberg Pfohl
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Production of paper and paperboard of high dry strength
- Patent number 4,818,341
- Issue date Apr 4, 1989
- BASF Aktiengesellschaft
- Hans-Juergen Degen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Liquid black dye mixture
- Patent number 4,804,387
- Issue date Feb 14, 1989
- BASF Aktiengesellschaft
- Hans-Juergen Degen
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Making paper which has a high dry strength
- Patent number 4,784,724
- Issue date Nov 15, 1988
- BASF Aktiengesellschaft
- Sigberg Pfohl
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Preparation of water-soluble copolymers containing vinylamine units...
- Patent number 4,774,285
- Issue date Sep 27, 1988
- BASF Aktiengesellschaft
- Sigberg Pfohl
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Manufacture of paper having a high dry strength and a low wet strength
- Patent number 4,294,873
- Issue date Oct 13, 1981
- BASF Aktiengesellschaft
- Juergen Hartmann
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Manufacture of tocopherol
- Patent number 4,191,692
- Issue date Mar 4, 1980
- BASF Aktiengesellschaft
- Paul Grafen
- C07 - ORGANIC CHEMISTRY

Sigberg Pfohl

Person

Patents Grantslast 30 patents

Coloring paper

Water-soluble copolymers containing vinylamine units as wet strengt...

Preparation of water-soluble copolymers containing vinylamine units...

Production of paper and paperboard of high dry strength

Liquid black dye mixture

Making paper which has a high dry strength

Preparation of water-soluble copolymers containing vinylamine units...

Manufacture of paper having a high dry strength and a low wet strength

Manufacture of tocopherol