Issued Patents All Time
Showing 1,026–1,038 of 1,038 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803857 | Bicycle air pump restraining device | Warren J. Clark | 1989-02-14 |
| 4802539 | Polycrystalline diamond bearing system for a roller cone rock bit | Donald G. Cross | 1989-02-07 |
| 4789251 | Cooling networks for PCD bearing surfaces | James McPherson | 1988-12-06 |
| 4738322 | Polycrystalline diamond bearing system for a roller cone rock bit | Donald G. Cross | 1988-04-19 |
| 4732364 | Wear resistant diamond cladding | Fritz O. Seger | 1988-03-22 |
| 4729440 | Transistion layer polycrystalline diamond bearing | — | 1988-03-08 |
| 4694918 | Rock bit with diamond tip inserts | — | 1987-09-22 |
| 4662348 | Burnishing diamond | H. Tracy Hall, Jr., Christian L. Lauridsen | 1987-05-05 |
| 4629373 | Polycrystalline diamond body with enhanced surface irregularities | — | 1986-12-16 |
| 4604106 | Composite polycrystalline diamond compact | — | 1986-08-05 |
| 4570726 | Curved contact portion on engaging elements for rotary type drag bits | — | 1986-02-18 |
| 4529048 | Inserts having two components anchored together at a non-perpendicular angle of attachment for use in rotary type drag bits | — | 1985-07-16 |
| 4525178 | Composite polycrystalline diamond | — | 1985-06-25 |