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:
Feb. 01, 1977
Filed:
Jun. 23, 1975
Applicant:
Inventors:
Sumio Umemura, Ube, JA;
Kyoji Ohdan, Ube, JA;
Fumihiko Sakai, Ube, JA;
Yasuo Bando, Ube, JA;
Harumi Ikezawa, Ube, JA;
Assignee:
UBE Industries, Ltd., , JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603 / ; 252435 ; 252437 ; 2605 / ; 252432 ;
Abstract
Unsaturated hydrocarbons having 4 to 6 carbon atoms are catalytically oxidized into maleic anhydride at relatively low temperatures in the range of 300.degree. C to 450.degree. C. The catalyst used consists essentially of oxides of vanadium, phosphorus, zirconium, and at least one element selected from manganese, boron, cadmium, silver, bismuth and zinc.
Umemura, Sumio. (1977). Vapor phase oxidation of unsaturated aliphatic hydrocarbon to maleic (U.S. Patent No. 4006167). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4006167
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile