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:
Dec. 04, 1990
Filed:
Jan. 10, 1989
Applicant:
Inventors:
Assignee:
Kurita Water Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23F / ;
U.S. Cl.
CPC ...
252388 ; 25238952 ; 25238962 ; 25238923 ;
Abstract
A corrosion inhibitor which comprises tannic acid and/or salt thereof; a sugar; and at least one member selected from aldonic acids or hexoses or salts thereof and aldonic acids of heptoses of salts thereof.