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:
Oct. 30, 2012
Filed:
Dec. 10, 2008
Applicants:
Hidetoshi Yoshiuchi, Fujisawa, JP;
Tsutomu Yamate, Yokohama, JP;
John Ullo, Sudbury, MA (US);
Kazuhiko Matsumoto, Suita, JP;
Inventors:
Hidetoshi Yoshiuchi, Fujisawa, JP;
Tsutomu Yamate, Yokohama, JP;
John Ullo, Sudbury, MA (US);
Kazuhiko Matsumoto, Suita, JP;
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/00 (2012.01);
U.S. Cl.
CPC ...
Abstract
Subterranean sensing devices configured or designed for downhole use to sense a local condition in the well. The sensing devices comprise one or more transistor having at least one carbon nanotube field effect transistor (CNT FET) configured or designed for operation downhole, within a borehole.