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:
Nov. 08, 2016
Filed:
Feb. 22, 2013
Applicant:
Weatherford Technology Holdings, Llc, Houston, TX (US);
Inventors:
Eric M. Twardowski, Spring, TX (US);
Albert C. Odell, II, Kingwood, TX (US);
Jose A. Trevino, Houston, TX (US);
Assignee:
Weatherford Technology Holding, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/14 (2006.01); E21B 4/02 (2006.01); E21B 4/00 (2006.01); E21B 7/20 (2006.01); E21B 33/04 (2006.01);
U.S. Cl.
CPC ...
E21B 4/02 (2013.01); E21B 4/00 (2013.01); E21B 7/208 (2013.01); E21B 33/0422 (2013.01); E21B 33/14 (2013.01);
Abstract
In one embodiment, a casing bit drive assembly may be used with a casing drilling system. The casing bit drive assembly may include one or more of the following: a retrievable drilling motor; a decoupled casing sub; a releasable coupling between the motor and casing bit; a releasable coupling between the motor and casing; a cement diverter; and a casing bit.
Twardowski, Eric. (2016). Subsea casing drilling system (U.S. Patent No. 9488004). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9488004
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile