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:
Oct. 29, 1985
Filed:
Apr. 25, 1983
Applicant:
Inventor:
Warren B Kirsch, Baton Rouge, LA (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
252 / ; 252 / ; 210719 ; 210757 ; 210917 ; 75109 ; 423143 ;
Abstract
A process for removing or decreasing the amount of color in a solution such as an oil well brine by adding hydroxylamine or hydrazine. The hydroxylamine or hydrazine may be added in any form such as the pure compound, a salt, the hydrate or the like.
Kirsch, Warren. (1985). Decolorization of calcium bromide brines (U.S. Patent No. 4549973). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4549973
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile