Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5365587 | Self modifying access code for altering capabilities | Michael J. Chan, Steven F. Hajek, Paul Leonard Wiltgen | 1994-11-15 |
| 5348107 | Pressure balanced inner chamber of a drilling head | Thomas F. Bailey, Larry F. Moeller | 1994-09-20 |