Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5806314 | Pressurized cylinder and booster in a low volume pressure circuit | — | 1998-09-15 |
| 5215153 | Apparatus for use in driving or withdrawing such earth entering elements as drills and casings | — | 1993-06-01 |
| 5118217 | Moveable flood barrier | — | 1992-06-02 |
| 5033554 | Well point placement and removal apparatus | — | 1991-07-23 |
| 4925159 | Vertical power pulling device | — | 1990-05-15 |