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:
Aug. 13, 2013
Filed:
Mar. 25, 2011
Applicants:
Zhigang Ban, Latrobe, PA (US);
Yixiong Liu, Greensburg, PA (US);
Inventors:
Zhigang Ban, Latrobe, PA (US);
Yixiong Liu, Greensburg, PA (US);
Assignee:
Kennametal Inc., Latrobe, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In one aspect, the present invention provides coated cutting tools comprising a PcBN substrate wherein a layer of single phase α-alumina is deposited by chemical vapor deposition directly on one or more surfaces of the substrate.