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:
Apr. 09, 2002
Filed:
Nov. 09, 1999
Applicant:
Inventors:
Gregory K. Otten, Houston, TX (US);
Philip M. Snider, Houston, TX (US);
Assignee:
Grant Prideco, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 5/500 ;
U.S. Cl.
CPC ...
F16L 5/500 ;
Abstract
A coupling for connecting first and second tubular members, the coupling including a tubular body having a first end portion and a second end portion, a first threaded box formed in the first end portion, a second threaded box formed in the second end portion, the tubular body having an outer, annularly extending surface with at least one groove formed in the outer surface and extending from the first end portion to the second end portion of the tubular body.