Bret F. Hann

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Corpus Christi, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Di-amino compounds and processes for preparing the same
- Patent number 5,424,387
- Issue date Jun 13, 1995
- Hoechst Celanese Corporation
- Michael T. Sheehan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Amines and processes for preparing the same
- Patent number 5,399,766
- Issue date Mar 21, 1995
- Hoechst Celanese Corporation
- Michael T. Sheehan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Processes for preparing diamino compounds
- Patent number 5,347,049
- Issue date Sep 13, 1994
- Hoechst Celanese Corporation
- Michael T. Sheehan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted phenyl compounds and processes for preparing the same
- Patent number 5,346,983
- Issue date Sep 13, 1994
- Hoechst Celanese Corporation
- Michael T. Sheehan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Processes for preparing amines
- Patent number 5,347,051
- Issue date Sep 13, 1994
- Hoechst Celanese Corporation
- Michael T. Sheehan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Di-amino compounds
- Patent number 5,312,990
- Issue date May 17, 1994
- Hoechst Celanese Corporation
- Michael T. Sheehan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Substituted benzyl amines
- Patent number 5,300,691
- Issue date Apr 5, 1994
- Hoechst Celanese Corporation
- Michael T. Sheehan
- C07 - ORGANIC CHEMISTRY