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:
Mar. 28, 1978
Filed:
Dec. 12, 1975
Applicant:
Inventors:
Ralph O Kerr, Houston, TX (US);
Gabe W Strybos, Jr, Houston, TX (US);
Assignee:
Denka Chemical Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
26034675 ;
Abstract
Molybdenum - vanadium - oxygen oxidation catalyst for producing maleic anhydride from benzene is regenerated and stabilized in situ by the addition of up to 0.0012 gram mole of phosphorus per gram mole of vanadium in the vanadium - molybdenum - oxygen catalyst.
Kerr, Ralph. (1978). Process for the vapor phase oxidation of benzene to maleic anhydrides (U.S. Patent No. 4081460). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4081460
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile