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:
Jan. 01, 2013
Filed:
May. 27, 2008
Applicants:
Dirk Van DE Peer, Bevern, BE;
Francois Cyriel D'haese, Antwerp, BE;
Rudolf J. Dams, Anwerp, BE;
Inventors:
Assignee:
3M Innovative Properties Company, Saint Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/035 (2006.01);
U.S. Cl.
CPC ...
Abstract
Additives for reducing the loss of drilling fluid into the formation surrounding a wellbore during the drilling process as well as drilling fluids comprising the additives and methods of using such additives. The additive includes elastomeric, polymeric, and acrylate, non-agglomerated microspheres.
Van de Peer, Dirk. (2013). Additive to reduce fluid loss for drilling fluids (U.S. Patent No. 8343895). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8343895
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile