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:
Jun. 20, 2006
Filed:
Feb. 15, 2002
Applicants:
Robert Lance Cook, Katy, TX (US);
David Paul Brisco, Duncan, OK (US);
Lev Ring, Houston, TX (US);
Michael Bullock, The Woodlands, TX (US);
Inventors:
Robert Lance Cook, Katy, TX (US);
David Paul Brisco, Duncan, OK (US);
Lev Ring, Houston, TX (US);
Michael Bullock, The Woodlands, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of applying an axial force to a first piston positioned within a first piston chamber including applying an axial force to the first piston using a second piston positioned within the first piston chamber.