Wilhelm Gruber

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Darmstadt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing methacrylic acid and methacrolein by oxidatio...
- Patent number 5,380,932
- Issue date Jan 10, 1995
- Roehm GmbH Chemische Fabrik
- Ernst Bielmeier
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for making heteropolyacid catalysts and catalysts made by th...
- Patent number 4,966,877
- Issue date Oct 30, 1990
- Rohm GmbH
- Klaus Langerbeins
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
H.sub.8 PMo.sub.10 VO.sub.39 and its anhydride, PMo.sub.10 VO.sub.3...
- Patent number 4,720,575
- Issue date Jan 19, 1988
- Rohm GmbH
- Wilhelm Gruber
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing methacrylic acid by oxidative dehydration of...
- Patent number 4,370,490
- Issue date Jan 25, 1983
- Rohm GmbH Chemische Fabrik
- Wilhelm Gruber
- C07 - ORGANIC CHEMISTRY