Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6425805 | Superhard material article of manufacture | John J. Prizzi, David R. Siddle | 2002-07-30 |
| 6367567 | Lockable drill steel and chuck assembly | Gary Condon, Daniel C. Statler | 2002-04-09 |
| 6368377 | Tungsten carbide nickel-chromium alloy hard member and tools using the same | William A. Bryant, Edward V. Conley | 2002-04-09 |