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:
Jul. 14, 1992
Filed:
Mar. 22, 1991
Applicant:
Inventors:
Kalman Kovasy, Bottmingen, CH;
Zdenek Mazour, Lausen, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560 75 ;
Abstract
Hydroxyphenylpropionates are prepared by Michael addition of an acrylic acid component to a phenol component. The compounds are purified by vacuum rectification after separation of the basic catalyst.
Kovasy, Kalman. (1992). Process for the preparation of hydroxyphenylpropionates (U.S. Patent No. 5130465). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5130465
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile