Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4757873 | Articulated transducer pad assembly for acoustic logging tool | Roy Swanson | 1988-07-19 |
| 4415030 | Casing re-entry apparatus for use in inclined oil and gas boreholes | Arnold Walkow | 1983-11-15 |
| 4410051 | System and apparatus for orienting a well casing perforating gun | Wilbur L. Daniel, Arnold Walkow, Gregory J. Wilkinson | 1983-10-18 |