Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D383439 | Retractable cord surge protector | Richard J. Tremmel, Robert Roca | 1997-09-09 |
| 5629826 | Retractable cord surge protector | Robert Roca, Richard J. Tremmel, John Harlan Peterson, Jr., Eric Parker, Bernd H. Wiegandt | 1997-05-13 |