Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10253410 | PVD-coated cutting tools and method for making the same | Vineet Kumar, Ronald M. Penich, Peter R. Leicht, Yixiong Liu | 2019-04-09 |
| 9903018 | Coated body wherein the coating scheme includes a coating layer of TiAl2O3 and method of making the same | Zhenyu Liu, Rodrigo Alejandro Cooper, Peter R. Leicht, Yixiong Liu | 2018-02-27 |
| 9656873 | Purification of tungsten carbide compositions | Pankaj K. Mehrotra | 2017-05-23 |
| 9650713 | PVD-coated cutting tools and method for making the same | Vineet Kumar, Ronald M. Penich, Peter R. Leicht, Yixiong Liu | 2017-05-16 |
| 9371580 | Coated body wherein the coating scheme includes a coating layer of TiAl2O3 and method of making the same | Zhenyu Liu, Rodrigo Alejandro Cooper, Peter R. Leicht, Yixiong Liu | 2016-06-21 |
| 9365925 | Multilayer structured coatings for cutting tools | Peter R. Leicht, Zhenyu Liu, Yixiong Liu | 2016-06-14 |
| 9181620 | Coatings for cutting tools | Karl Heinz Wendt, Volkmar Sottke, Peter R. Leicht, Yixiong Liu, Hartmut Westphal | 2015-11-10 |
| 9181621 | Coatings for cutting tools | Zhenyu Liu, Peter R. Leicht, Rodrigo Alejandro Cooper, Yixiong Liu | 2015-11-10 |
| 9017809 | Coatings for cutting tools | Volkmar Sottke, Doris Lenk, Hartmut Westphal, Hendrikus Van Den Berg, Peter R. Leicht +1 more | 2015-04-28 |
| 8828492 | Method of making aluminum oxynitride coated article | Volkmar Sottke, Hartmut Westphal, Hendrikus Van Den Berg, Zhigang Ban, Yixiong Liu | 2014-09-09 |
| 8668982 | Coated cutting insert and method for making the same | Peter R. Leicht, Volkmar Sottke, Zhigang Ban, Hartmut Westphal, Yixiong Liu +1 more | 2014-03-11 |
| 8574728 | Aluminum oxynitride coated article and method of making the same | Volkmar Sottke, Hartmut Westphal, Hendrkus Van Den Berg, Zhigang Ban, Yixiong Liu | 2013-11-05 |
| 8568866 | Multilayer nitride hard coatings | Wangyang Ni, Yixiong Liu, Ronald M. Penich | 2013-10-29 |
| 8409734 | Coated substrates and methods of making same | Zhigang Ban, Yixong Liu | 2013-04-02 |
| 8409695 | Multilayer nitride hard coatings | Wangyang Ni, Yixiong Liu, Ronald M. Penich | 2013-04-02 |
| 8080323 | Cutting insert with a wear-resistant coating scheme exhibiting wear indication and method of making the same | Zhigang Ban, Mark J. Rowe, Yixiong Liu, Alfred S. Gates, Jr., Kent P. Mizgalski | 2011-12-20 |
| 6998173 | Cemented carbide tool and method of making | Yixiong Liu, Donald A. Botbyl, George P. Grab | 2006-02-14 |
| 6866921 | Chromium-containing cemented carbide body having a surface zone of binder enrichment | George P. Grab, Anakkavur T. Santhanam | 2005-03-15 |
| 6638474 | method of making cemented carbide tool | Yixiong Liu, Donald A. Botbyl, George P. Grab | 2003-10-28 |
| 6554548 | Chromium-containing cemented carbide body having a surface zone of binder enrichment | George P. Grab, Anakkavur T. Santhanam | 2003-04-29 |
| 6183687 | Hard composite and method of making the same | — | 2001-02-06 |
| 5623723 | Hard composite and method of making the same | — | 1997-04-22 |
| 5112411 | Process of making mining/construction tool bit body fabricated from MN/B steel alloy composition | — | 1992-05-12 |
| 5008073 | Mn-B steel alloy composition | — | 1991-04-16 |
| 4886710 | Mining/construction tool bit having bit body fabricated from Mn-B steel alloy composition | — | 1989-12-12 |