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:
Jul. 08, 2014
Filed:
Jul. 20, 2011
Applicants:
Christopher Tanguay, Trenton, MI (US);
Rajesh Kumar, Riverview, MI (US);
Inventors:
Christopher Tanguay, Trenton, MI (US);
Rajesh Kumar, Riverview, MI (US);
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A proppant comprises a particle and a polyamide imide coating disposed on the particle. A method of forming the proppant comprises the steps of providing the particle, providing the polyamide imide coating, and coating the particle with the polyamide imide coating.