Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8512882 | Carbide cutting insert | X. Daniel Fang, David J. Wills, Edwin Tonne | 2013-08-20 |
| 8440314 | Coated cutting tools having a platinum group metal concentration gradient and related processes | Craig W. Morton, Dewitt Dortch, David J. Wills | 2013-05-14 |
| RE43387 | Anchored oxide coatings on hard metal cutting tools | Roy V. Leverenz | 2012-05-15 |
| 6929851 | Coated substrate | Roy V. Leverenz | 2005-08-16 |
| 6827975 | Method of coating cutting tools | Roy V. Leverenz, James J. Oakes | 2004-12-07 |
| 6447890 | Coatings for cutting tools | Roy V. Leverenz, James J. Oakes | 2002-09-10 |
| 6358428 | Method of etching | Roy V. Leverenz | 2002-03-19 |
| 6214247 | Substrate treatment method | Roy V. Leverenz | 2001-04-10 |
| 5958569 | Anchored oxide coatings on hard metal cutting tools | Roy V. Leverenz | 1999-09-28 |
| 4887723 | Anti-friction sorting roll and stabilizer | — | 1989-12-19 |
| 4767010 | Bearing sorting device | — | 1988-08-30 |