Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334584 | Method and apparatus for installing a sea-floor cellar in a subsea bottom having compacted soil conditions | — | 1982-06-15 |
| 4305686 | Offshore drilling platform protection device | — | 1981-12-15 |
| 4189255 | Sea-floor shoring cellar and method of installing same | John J. Macan | 1980-02-19 |