Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6077591 | Elements faced with superhard material | — | 2000-06-20 |
| 6065554 | Preform cutting elements for rotary drill bits | Malcolm R. Taylor, Tom Scott Roberts | 2000-05-23 |
| 6056911 | Methods of treating preform elements including polycrystalline diamond bonded to a substrate | — | 2000-05-02 |
| 5888619 | Elements faced with superhard material | — | 1999-03-30 |
| 5669271 | Elements faced with superhard material | John M. Fuller | 1997-09-23 |
| 5622233 | Elements faced with superhard materials | — | 1997-04-22 |
| 5617928 | Elements faced with superhard material | Terry R. Matthias, John M. Fuller | 1997-04-08 |
| 5598750 | Elements faced with superhard material | T. Alex Newton | 1997-02-04 |
| 5590728 | Elements faced with superhard material | Terry R. Matthias, John M. Fuller | 1997-01-07 |
| 5487436 | Cutter assemblies for rotary drill bits | — | 1996-01-30 |
| 5469927 | Cutting elements for rotary drill bits | — | 1995-11-28 |
| 5421425 | Cutting elements for rotary drill bits | — | 1995-06-06 |
| 5348109 | Cutter assemblies and cutting elements for rotary drill bits | — | 1994-09-20 |
| 5111895 | Cutting elements for rotary drill bits | — | 1992-05-12 |
| 5060739 | Cutter assemblies for rotary drill bits, and method of manufacturing same | — | 1991-10-29 |
| 4956238 | Manufacture of cutting structures for rotary drill bits | — | 1990-09-11 |
| 4949598 | Manufacture of rotary drill bits | — | 1990-08-21 |
| 4947945 | Relating to cutter assemblies for rotary drill bits | — | 1990-08-14 |
| 4669522 | Manufacture of rotary drill bits | — | 1987-06-02 |