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:
Feb. 24, 1981
Filed:
Dec. 06, 1977
Applicant:
Inventors:
Assignee:
Societe Nationale Elf Aquitaine, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
252 / ; 166275 ; 252308 ; 252312 ;
Abstract
Oil and water microemulsions having a high salt content and intended for assisted petroleum recovery are prepared from a concentrate containing:
Barriol, Jean-Paul. (1981). Concentrate for the preparation of oil and water microemulsions having (U.S. Patent No. 4252657). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4252657
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile