Josef Haydn

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Leverkusen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Silica-containing shaped articles and a process for their preparation
- Patent number 4,764,498
- Issue date Aug 16, 1988
- Bayer Aktiengesellschaft
- Adolf Wissner
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the depyrophorization of pyrophoric metal catalysts and...
- Patent number 4,224,248
- Issue date Sep 23, 1980
- Bayer Aktiengesellschaft
- Udo Birkenstock
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for the depyrophorization of pyrophoric metal catalysts and...
- Patent number 4,176,092
- Issue date Nov 27, 1979
- Bayer Aktiengesellschaft
- Udo Birkenstock
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for the dealkylation of tert.-alkyl substituted phenols
- Patent number 4,150,243
- Issue date Apr 17, 1979
- Bayer Aktiengesellschaft
- Dieter W. Bruck
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the continuous preparation of di-tertiary butylcresols
- Patent number 4,144,400
- Issue date Mar 13, 1979
- Bayer Aktiengesellschaft
- Helmut Fiege
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for purifying alkylphenolz
- Patent number 4,113,975
- Issue date Sep 12, 1978
- Bayer Aktiengesellschaft
- Helmut Fiege
- C07 - ORGANIC CHEMISTRY