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:
Jan. 27, 2017
National Oilwell Dht, L.p., Conroe, TX (US);
Biju Pillai Kumar, Pasadena, TX (US);
Bradley S. Ivie, Conroe, TX (US);
Wei Liu, Conroe, TX (US);
Anil Kumar, Conroe, TX (US);
Russell C. Gilleylen, Spring, TX (US);
Michael D. Hughes, Spring, TX (US);
Jagdish Narayan, Raleigh, NC (US);
NATIONAL OILWELL DHT, L.P., Conroe, TX (US);
Abstract
Discussed herein are systems and methods of forming hardfacing coatings and films containing Q-carbon diamond particles for use in downhole drilling tooling and other tools where wear-resistant coating is desirable. The Q-carbon diamond-containing layers may be coated with matrix material and/or disposed in a matrix to form the coating, or the Q-carbon diamond layer may be formed directly from a diamond-like-carbon on a substrate.