Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6286406 | Injection molded carbide cutting insert | Ramamurthy Viswanadham, David Brutscher, Donald C. Pennington, Jr. | 2001-09-11 |
| 6000312 | Carbide cutting insert | R. K. Viswanadham | 1999-12-14 |
| 5868047 | Insert bit for use with a powered screwdriver | James A. Faust, Marzell Chanton | 1999-02-09 |
| 5809848 | Method of making a carbide cutting insert | R. K. Viswanadham | 1998-09-22 |
| 5650059 | Method of making cemented carbide substrate | Zane Lockhart, Jr., Oscar Miller | 1997-07-22 |