Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4979643 | Chemical refill system | Bruce A. Lipisko, John C. Schumacher, Richard E. Howard, Adrian Sandu, Robert E. Fletcher +1 more | 1990-12-25 |
| 4696411 | Large breakseal actuator with built-in valve | Hans-Juergen Graf | 1987-09-29 |