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:
Jun. 12, 1990
Filed:
Apr. 05, 1989
Yasuo Isomura, Tokyo, JP;
Makoto Takeuchi, Tokyo, JP;
Shuichi Sakamoto, Tokyo, JP;
Tetsushi Abe, Saitama, JP;
Yamanouchi Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
Substituted aminomethylenebis(phosphonic acid) derivatives represented by the general formula: ##STR1## in which R.sup.1, R.sup.2 R.sup.3 and R.sup.4 may be the same or different, each represents a hydrogen atom or a lower alkyl group; 'm' is zero or represents an integer from 1 to 4; and a ring 'A' represents a cycloalkenyl group having 5 to 8 carbon atoms, a bicycloheptyl group, a bicycloheptenyl group or a saturated heterocyclic group having 4 to 7 carbon atoms and containing an oxygen atom, a sulfur atom, a sulfinyl group (--SO--) or a sulfonyl group (--SO.sub.2 --), or pharmaceutically acceptable salts thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile