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:
Sep. 08, 1992
Filed:
Jul. 22, 1991
Applicant:
Inventors:
Makoto Ishizuka, Iwaki, JP;
Takashi Wakasugi, Iwaki, JP;
Assignee:
Kureha Chemical Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560159 ;
Abstract
A process for producing a hydrazone derivative represented by the following formula at a high purity at a high yield by decomposing monochloroacetaldehyde trimer into monochloroacetaldehyde monomer and then reacting the monomer with an alkyl carbazate in an organic solvent:
Ishizuka, Makoto. (1992). Process for producing hydrazone derivatives (U.S. Patent No. 5145988). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5145988
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile