Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4919223 | Apparatus for remotely controlled movement through tubular conduit | Shawn E. Egger | 1990-04-24 |
| 4675728 | Apparatus for performing internal inspection of piping | Eugene R. Egger | 1987-06-23 |
| 4577102 | Method and apparatus for distinguishing hydrocarbon from fresh water in situ | John Ullo | 1986-03-18 |