Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5269246 | Vessel hull construction and method | Richard A. Goldbach, Frank E. McConnell | 1993-12-14 |
| 5090351 | Vessel hull construction and method | Richard A. Goldbach, Frank E. McConnell | 1992-02-25 |
| 4351733 | Process and apparatus for purification of industrial waste water | Hans-Ulrich Schwering | 1982-09-28 |