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:
Mar. 20, 2012
Filed:
Mar. 13, 2009
Applicant:
Charles E. Jennings, Tomball, TX (US);
Inventor:
Charles E. Jennings, Tomball, TX (US);
Assignee:
Vetco Gray Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/068 (2006.01);
U.S. Cl.
CPC ...
Abstract
An isolation sleeve and plug assembly that may be used to protect a wellhead assembly from being damaged by high-pressure wellbore fracturing operations. Both the isolation sleeve and plug may be installed by the same running tool, and may be installed by lowering the running tool through an isolation valve on the wellbore.