The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 1991
Filed:
Dec. 07, 1990
Applicant:
Inventor:
Klaus Langerbeins, Mannheim, DE;
Assignee:
Rohm GmbH, Darmstadt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502211 ; 502209 ; 502210 ; 502212 ; 502213 ; 502214 ; 562599 ;
Abstract
Catalysts containing molybdenum, vanadium, phosphorus, and oxygen, optionally together with one or more metal ions, as their active constituents, are preferably disposed on an inert carrier for the oxidative dehydrogenation of isobutyric acid or its lower esters to methacrylic acid or its lower esters.