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. 26, 1989
Filed:
Feb. 08, 1985
Applicant:
Inventor:
William C Firth, Jr, Robbinsville, NJ (US);
Assignee:
Union Camp Corporation, Wayne, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ;
U.S. Cl.
CPC ...
252-8514 ; 252-8515 ; 252-8551 ; 175 72 ;
Abstract
The disclosure is of particular substituted ammonium humates useful as fluid loss control agents in oil-based drilling fluids. The humate bears a unique compositional make-up.
Firth, Jr, William. (1989). Substituted-ammonium humate fluid loss control agents for oil-based (U.S. Patent No. 4889645). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4889645
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile