Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7506698 | Cutting elements and bits incorporating the same | Ronald K. Eyre | 2009-03-24 |
| 6655478 | Fracture and wear resistant rock bits | Dah-Ben Liang, Gary R. Portwood, Paul E. Cox | 2003-12-02 |
| 5949455 | Method of printing with a multi-nozzle continuous ink jet printer | — | 1999-09-07 |
| 4652794 | Electroluminescent device having a resistive backing layer | Michael Waite, John Robert Siddle | 1987-03-24 |