Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5636418 | Environmentally degradable urns for burial of human cremation ashes in terrestrial cemeteries | Thomas Vail | 1997-06-10 |
| 5637972 | Rotor position encoder having features in decodeable angular positions | Steven P. Randall, David M. Sudgen, Geoffrey T. Brown | 1997-06-10 |
| 5633590 | Formation resistivity measurements from within a cased well used to quantitatively determine the amount of oil and gas present | — | 1997-05-27 |
| 5615747 | Monolithic self sharpening rotary drill bit having tungsten carbide rods cast in steel alloys | — | 1997-04-01 |