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:
Feb. 02, 2021
Filed:
Mar. 28, 2019
Applicants:
Guijun Deng, The Woodlands, TX (US);
John K. Wakefield, Cypress, TX (US);
Christopher Cook, Houston, TX (US);
Frank J. Maenza, Houston, TX (US);
Inventors:
Guijun Deng, The Woodlands, TX (US);
John K. Wakefield, Cypress, TX (US);
Christopher Cook, Houston, TX (US);
Frank J. Maenza, Houston, TX (US);
Assignee:
BAKER HUGHES OILFIELD OPERATIONS LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/12 (2006.01); E21B 23/06 (2006.01); E21B 33/128 (2006.01); E21B 33/129 (2006.01);
U.S. Cl.
CPC ...
E21B 33/1216 (2013.01); E21B 23/06 (2013.01); E21B 33/128 (2013.01); E21B 33/1292 (2013.01); E21B 33/1293 (2013.01); E21B 33/1208 (2013.01);
Abstract
A backup including a radially inwardly disposed circumferentially continuous ring; a radially outwardly disposed circumferentially discontinuous ring, the circumferentially discontinuous ring comprising a plurality of segments arranged to overlap adjacent ones thereof about a circumference of the circumferentially discontinuous ring.