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:
Jan. 10, 2017
Filed:
May. 21, 2015
Applicant:
Sunstone Technologies, Llc, Oklahoma City, OK (US);
Inventor:
William James Hughes, Highland Ranch, CO (US);
Assignee:
Sunstone Technologies, LLC, Oklahoma City, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/03 (2006.01); E21B 33/08 (2006.01);
U.S. Cl.
CPC ...
E21B 33/085 (2013.01);
Abstract
An annular drilling device is provided that employs an active or passive, stationary sealing element. The sealing element is made of a low-friction material that contacts the drill pipe and creates a seal.