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. 19, 2019
Filed:
Oct. 05, 2015
Applicant:
Chevron U.s.a. Inc., San Ramon, CA (US);
Inventors:
Donald C. Van Slyke, Richmond, TX (US);
Christopher E. Johnson, Martinez, CA (US);
Assignee:
CHEVRON U.S.A. INC., San Ramon, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/035 (2006.01); E21B 7/00 (2006.01); C09K 8/32 (2006.01);
U.S. Cl.
CPC ...
E21B 7/00 (2013.01); C09K 8/32 (2013.01);
Abstract
The disclosure relates to drilling fluid compositions, and their method of use, comprising a non-toxic and low cost-to-produce mineral base oil comprising 90 to 100% branched and cyclic-paraffins and virtually aromatic free. The disclosed base oils are suitable to replace diesel oil and distillates in any drilling operation and offers a reduced environmental impact and improved health and safety of employees.
Van Slyke, Donald. (2019). Non-toxic, inexpensive, low viscosity mineral oil based drilling fluid (U.S. Patent No. 10208540). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10208540
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile