Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6050754 | Self-centering drill bit with pilot tip, and process | — | 2000-04-18 |
| 5842267 | Method and apparatus for forming parts of a predetermined shape from a continuous stock material | Ronald R. Biederman, Thomas Trevor Bludis, Stephen R. Crosby, Kyle J. Eppley, Charles P. Gure +5 more | 1998-12-01 |
| D394663 | Spade-type boring bit having chamfered corner portions | Paul A. Stone, Chris McKenna, Timothy T. McKenzie, Richard Alan Adams | 1998-05-26 |
| 5700113 | Spade-type boring bit and an associated method and apparatus for forming metallic parts | Paul A. Stone | 1997-12-23 |
| 5697738 | Spade-type boring bit having chamfered corner portions | Paul A. Stone, Timothy T. McKenzie, Richard Alan Adams | 1997-12-16 |
| D376809 | Spade-type boring bit | Paul A. Stone, Chris McKenna | 1996-12-24 |
| D372485 | Spade-type boring bit | Paul A. Stone | 1996-08-06 |