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:
Sep. 06, 2005
Filed:
Dec. 13, 2002
Applicant:
Charles Roderick Jenkins, Willingham, GB;
Inventor:
Charles Roderick Jenkins, Willingham, GB;
Assignee:
Schlumberger Technology Corporation, Ridgefield, CT (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V001/00 ;
U.S. Cl.
CPC ...
Abstract
A drill string telemetry system comprises an acoustic reflector mounted to the surface end of the drill string. The reflector is adapted to reflect surface-generated torsional acoustic noise away from the drill string. The reflector attenuates the power of 500 Hz torsional acoustic noise power impinging on the reflector by a factor of at least 2.
Jenkins, Charles. (2005). Drill string telemetry system (U.S. Patent No. 6940420). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6940420
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile