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:
May. 19, 2015
Filed:
Dec. 16, 2011
Applicants:
Thomas J. Pisklak, Cypress, TX (US);
Elizabeth G. Morillo, The Woodlands, TX (US);
Qi Qu, Spring, TX (US);
Inventors:
Thomas J. Pisklak, Cypress, TX (US);
Elizabeth G. Morillo, The Woodlands, TX (US);
Qi Qu, Spring, TX (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/13 (2006.01); C04B 14/10 (2006.01); C04B 14/24 (2006.01);
U.S. Cl.
CPC ...
C04B 14/104 (2013.01); C04B 14/24 (2013.01); E21B 33/13 (2013.01);
Abstract
A lightweight composite having an activated surface contains a lightweight hollow core particle having cement grains which may be adhered to the hollow core or embedded in the surface of the hollow core. The hollow core particle may be prepared from calcium carbonate and a mixture of clay, such as bentonite, and a glassy inorganic material, such as glass spheres, glass beads, glass bubbles, borosilicate glass and fiberglass.