Gunter Siegemund

Person

Hofheim, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of 1,1,1,2-tetrafluoroethane
- Patent number 6,288,293
- Issue date Sep 11, 2001
- Solvay (Societe Anonyme)
- Wolfgang Wanzke
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the addition of HF to halogenated alkenes
- Patent number 5,969,199
- Issue date Oct 19, 1999
- Solvay S.A.
- Raimund Franz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the addition of HF to halogenated alkenes
- Patent number 5,847,245
- Issue date Dec 8, 1998
- Solvay (Societe Anonyme)
- Raimund Franz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for regenerating a fluorination catalyst
- Patent number 5,739,070
- Issue date Apr 14, 1998
- Solvay (Societe Anonyme)
- Frank Ebmeyer
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for the work-up of complex amine hydrofluroides
- Patent number 5,728,884
- Issue date Mar 17, 1998
- Solvay
- Ulrich Hahn
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of perfluoropropionyl fluoride
- Patent number 5,684,193
- Issue date Nov 4, 1997
- Hoechst Aktiengesellschaft
- Gunter Siegemund
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing trifluoroacetyl fluoride
- Patent number 5,672,748
- Issue date Sep 30, 1997
- Solvay
- Frank Ebmeyer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of trichloroacetyl chloride
- Patent number 5,659,078
- Issue date Aug 19, 1997
- Hoechst Aktiengesellschaft
- Frank Ebmeyer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing trifluoroethyl sulfur compounds from thiolate...
- Patent number 5,534,634
- Issue date Jul 9, 1996
- Hoechst AG
- Wolfgang Appel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing trifluoromethylanilines
- Patent number 5,471,002
- Issue date Nov 28, 1995
- Wolfgang Appel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 2-H-heptafluoropropane
- Patent number 5,399,795
- Issue date Mar 21, 1995
- Hoechst Aktiengesellschaft
- Raimund Franz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
.alpha.-fluoroacrylic acid esters and polymers thereof
- Patent number 5,319,131
- Issue date Jun 7, 1994
- Hoechst Aktiengesellschaft
- Rudolf Heumuller
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of fluorine containing monomers
- Patent number 5,288,908
- Issue date Feb 22, 1994
- Hoechst Aktiengesellschaft
- Jurgen Lau
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Partially fluorinated tetracarboxylic acid and the dianhydride ther...
- Patent number 5,274,126
- Issue date Dec 28, 1993
- Hoechst AG
- Freimund Rohrscheid
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted phenyl .alpha.-fluoroacrylates
- Patent number 5,266,668
- Issue date Nov 30, 1993
- Hoechst Aktiengesellschaft
- Rudolf Heumuller
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 1,1,1-trifluoro-2-2-dichloroethane u...
- Patent number 5,254,771
- Issue date Oct 19, 1993
- Hoechst Aktiengesellschaft
- Hans R. Cremer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Partially fluorinated dicarboxylic acid and the acid chloride there...
- Patent number 5,202,469
- Issue date Apr 13, 1993
- Hoechst Aktiengesellschaft
- Freimund Rohrscheid
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
.alpha.-fluoroacrylic acid esters and polymers thereof
- Patent number 5,198,925
- Issue date Mar 30, 1993
- Hoechst Aktiengesellschaft
- Rudolf Heumuller
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 1,1,1-Trifluoro-2-chloroethane
- Patent number 5,157,172
- Issue date Oct 20, 1992
- Hoechst Aktiengesellschaft
- Wolfgang Wanzke
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Partially fluorinated tetracarboxylic acid and the dianhydride thereof
- Patent number 5,153,334
- Issue date Oct 6, 1992
- Hoechst Aktiengesellschaft
- Freimund Rohrscheid
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Partially fluorinated biphenyls, processes for their preparation an...
- Patent number 5,118,874
- Issue date Jun 2, 1992
- Hoechst Aktiengesellschaft
- Wolfgang Appel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hexafluoroisopropyl-containing monomers, process for their preparat...
- Patent number 5,110,983
- Issue date May 5, 1992
- Hoechst Aktiengesellschaft
- Jurgen Lau
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the continuous oligomerization of hexafluoropropene oxide
- Patent number 5,087,748
- Issue date Feb 11, 1992
- Hoechst Aktiengesellschaft
- Manfred Finke
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fluoro-containing compounds based on 4,4'-bis[2-(4-hydroxyphenyl) h...
- Patent number 5,081,315
- Issue date Jan 14, 1992
- Hoechst Aktiengesellschaft
- Jurgen Lau
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of reaction products of 2,2-bis-(4-hydr...
- Patent number 5,028,728
- Issue date Jul 2, 1991
- Hoechst Aktiengesellschaft
- Klaus-Albert Schneider
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Esters of arylbisperfluoroalkylcarbinols, and a process for the pre...
- Patent number 5,017,719
- Issue date May 21, 1991
- Hoechst Aktiengesellschaft
- Alfred Kruse
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Partly fluorinated carboxylic acids and derivatives thereof, proces...
- Patent number 5,004,797
- Issue date Apr 2, 1991
- Hoechst Aktiengesellschaft
- Freimund Rohrscheid
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Partially fluorinated diphenyl ethers, processes for their preparat...
- Patent number 4,992,593
- Issue date Feb 12, 1991
- Hoechst Aktiengesellschaft
- Gunter Siegemund
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
4,4'-bis[2-(4-hydroxy-amino-phenyl)hexafluoroisopropyl]-diphenyleth...
- Patent number 4,978,790
- Issue date Dec 18, 1990
- Hoechst Aktiengesellschaft
- Jurgen Lau
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the dimerization of hexafluoropropene oxide
- Patent number 4,973,749
- Issue date Nov 27, 1990
- Hoechst Aktiengesellschaft
- Gunter Siegemund
- C07 - ORGANIC CHEMISTRY

Gunter Siegemund

Person

Patents Grantslast 30 patents

Process for the preparation of 1,1,1,2-tetrafluoroethane

Process for the addition of HF to halogenated alkenes

Process for the addition of HF to halogenated alkenes

Process for regenerating a fluorination catalyst

Process for the work-up of complex amine hydrofluroides

Process for the preparation of perfluoropropionyl fluoride

Process for preparing trifluoroacetyl fluoride

Process for the preparation of trichloroacetyl chloride

Process for preparing trifluoroethyl sulfur compounds from thiolate...

Process for preparing trifluoromethylanilines

Process for the preparation of 2-H-heptafluoropropane

.alpha.-fluoroacrylic acid esters and polymers thereof

Process for the preparation of fluorine containing monomers

Partially fluorinated tetracarboxylic acid and the dianhydride ther...

Substituted phenyl .alpha.-fluoroacrylates

Process for the preparation of 1,1,1-trifluoro-2-2-dichloroethane u...

Partially fluorinated dicarboxylic acid and the acid chloride there...

.alpha.-fluoroacrylic acid esters and polymers thereof

Process for the preparation of 1,1,1-Trifluoro-2-chloroethane

Partially fluorinated tetracarboxylic acid and the dianhydride thereof

Partially fluorinated biphenyls, processes for their preparation an...

Hexafluoroisopropyl-containing monomers, process for their preparat...

Process for the continuous oligomerization of hexafluoropropene oxide

Fluoro-containing compounds based on 4,4'-bis[2-(4-hydroxyphenyl) h...

Process for the preparation of reaction products of 2,2-bis-(4-hydr...

Esters of arylbisperfluoroalkylcarbinols, and a process for the pre...

Partly fluorinated carboxylic acids and derivatives thereof, proces...

Partially fluorinated diphenyl ethers, processes for their preparat...

4,4'-bis[2-(4-hydroxy-amino-phenyl)hexafluoroisopropyl]-diphenyleth...

Process for the dimerization of hexafluoropropene oxide