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:
Nov. 03, 1992
Filed:
Jul. 16, 1990
Applicant:
Inventors:
Michel Constantini, Lyons, FR;
Jean-Michel Popa, Drancy, FR;
Assignee:
Rhone-Poulenc Chimie, Courbevoie, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568771 ; 568629 ; 568630 ; 568803 ; 568815 ;
Abstract
The phenols and phenol ethers are economically and efficiently hydroxylated using hydrogen peroxide, in the presence of a catalytically effective amount of a bridged clay, e.g., a zeolite or smectite.
Constantini, Michel. (1992). Hydroxylation of phenols/phenol ethers (U.S. Patent No. 5160496). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5160496
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile