Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6098731 | Drill bit compact with boron or beryllium for fracture resistance | Ralph M. Horton, Redd H. Smith, Gordon A. Tibbitts | 2000-08-08 |
| 6089123 | Structure for use in drilling a subterranean formation | Sidney L. Findley, David P. Beacco, Lorenzo G. Lovato | 2000-07-18 |
| 6073518 | Bit manufacturing method | Sidney L. Findley, David P. Beacco, Lorenzo G. Lovato | 2000-06-13 |
| 5820985 | PDC cutters with improved toughness | Ralph M. Horton, Redd H. Smith, Gordon A. Tibbitts | 1998-10-13 |
| 5147001 | Drill bit cutting array having discontinuities therein | Ralph M. Horton, Mark L. Jones | 1992-09-15 |
| 4361194 | Bearing system for a downhole motor | John S. Davis | 1982-11-30 |