Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6088904 | Modular generator frame construction | Richard J. Keck, Frank Zwack, Sr., Thomas E. Van Schaick | 2000-07-18 |
| 5744885 | Modular generator frame construction | Richard J. Keck, Frank Zwack, Sr., Thomas E. Van Schaick | 1998-04-28 |