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. 08, 2011
Filed:
Apr. 21, 2009
Applicant:
Jing James Yao, Mississauga, CA;
Inventor:
Jing James Yao, Mississauga, CA;
Assignee:
Longyear TM, Inc., South Jordan, UT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A drill rod includes a first end section, a mid-section, wherein the first end section and the mid-section are connected and wherein the first end section is manufactured using different steel than is used for the mid-section. Such a configuration can reduce the costs associated with forming a drill rod while maintaining the functionality of such a drill rod.