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:
Aug. 29, 2006
Filed:
Dec. 18, 2002
Applicants:
Wenlin Zhang, Missouri City, TX (US);
Joe Walter, Sugar Land, TX (US);
Inventors:
Wenlin Zhang, Missouri City, TX (US);
Joe Walter, Sugar Land, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 29/12 (2006.01); E21B 29/02 (2006.01); E21B 36/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A subsea fuel cell and system adapted for long duration use. The subsea fuel cell comprises a fuel cell stack and a water discharge system. In alternate embodiments, the subsea fuel cell can further comprise an impurity discharge system.