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. 17, 2009
Filed:
Oct. 02, 2006
Applicants:
A. Richard Sinclair, Houston, TX (US);
Patrick R. Okell, Bellaire, TX (US);
Syed Akbar, Houston, TX (US);
Inventors:
A. Richard Sinclair, Houston, TX (US);
Patrick R. Okell, Bellaire, TX (US);
Syed Akbar, Houston, TX (US);
Assignee:
Fairmount Minerals, Inc., Chardon, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/267 (2006.01);
U.S. Cl.
CPC ...
Abstract
A new proppant comprises a proppant particle substrate, a water-soluble external coating on the proppant particle substrate and a microparticulate reinforcing and spacing agent at least partially embedded in the water-soluble external coating in a manner such that the microparticulate reinforcing agent is substantially released from the proppant particle substrate when the water-soluble coating dissolves or degrades.