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:
Apr. 11, 1989
Filed:
Jun. 30, 1987
Applicant:
Inventors:
Hideo Terayama, Itami, JP;
Jun Inoue, Settsu, JP;
Assignee:
Senju Pharmaceutical Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544 99 ;
Abstract
The compounds represented by the general formula ##STR1## wherein R is an alkyl group having 1-10 carbon atoms are novel compounds which have not been reported in the literature. Since they have excellent affinities for tissues with particular high corneal permeability and show anticataract activity at low concentration, the compounds are of value as prophylactic and therapeutic agents for cataracts.
Terayama, Hideo. (1989). 1-hydroxy-oxo-5h-pyrido(3,2-a)phenoxazine-3-carboxylic acid esters (U.S. Patent No. 4820837). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4820837
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile