Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5771985 | Earth penetrating apparatus for obtaining sediment samples, driving instrument probes, pilings, or sheet pilings | — | 1998-06-30 |
| 5554829 | Land seismic acoustic source | — | 1996-09-10 |
| 4747466 | Impact tool | — | 1988-05-31 |
| 4603409 | Marine seismic acoustic source | — | 1986-07-29 |
| 4577547 | Impact tool | — | 1986-03-25 |