Siegfried Schiessler

Person

Bad Soden am Taunus, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Isoindoline pigments
- Patent number 5,698,705
- Issue date Dec 16, 1997
- Hoechst Aktiengesellschaft
- Frank Alfter
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Biscationic acid amide and imide derivatives and processes for thei...
- Patent number 5,329,046
- Issue date Jul 12, 1994
- Hoechst Aktiengesellschaft
- Hans-Tobias Macholdt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of vat dyes and pigments of the perinone series
- Patent number 5,074,919
- Issue date Dec 24, 1991
- Hoechst Aktiengesellschaft
- Erwin Dietz
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for the preparation of pigment preparations of the anthanth...
- Patent number 5,071,483
- Issue date Dec 10, 1991
- Hoechst Aktiengesellschaft
- Erwin Dietz
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Pigment preparations
- Patent number 5,071,482
- Issue date Dec 10, 1991
- Hoechst Aktiengesellschaft
- Erwin Dietz
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Use of the alpha-modification of cis-naphthoylenebis(benzimidazole)...
- Patent number 4,939,193
- Issue date Jul 3, 1990
- Hoechst Aktiengesellschaft
- Erwin Dietz
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing 1,3,6,8-tetrabromopyrene
- Patent number 4,684,753
- Issue date Aug 4, 1987
- Hoechst Aktiengesellschaft
- Siegfried Schiessler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of naphthalene-1,4,5,8-tetracarboxylic...
- Patent number 4,599,431
- Issue date Jul 8, 1986
- Hoechst Aktiengesellschaft
- Siegfried Schiessler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing copper phthalocyanine pigments of the .alpha....
- Patent number 4,224,222
- Issue date Sep 23, 1980
- Hoechst Aktiengesellschaft
- Ernst Spietschka
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for the preparation of a N,N'-dimethyl-perylene-3,4,9,10-te...
- Patent number 4,153,602
- Issue date May 8, 1979
- Hoechst Aktiengesellschaft
- Siegfried Schiessler
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Siegfried Schiessler

Person

Patents Grantslast 30 patents

Isoindoline pigments

Biscationic acid amide and imide derivatives and processes for thei...

Preparation of vat dyes and pigments of the perinone series

Process for the preparation of pigment preparations of the anthanth...

Pigment preparations

Use of the alpha-modification of cis-naphthoylenebis(benzimidazole)...

Process for preparing 1,3,6,8-tetrabromopyrene

Process for the preparation of naphthalene-1,4,5,8-tetracarboxylic...

Process for preparing copper phthalocyanine pigments of the .alpha....

Process for the preparation of a N,N'-dimethyl-perylene-3,4,9,10-te...