Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6040640 | Direct voltage back-up system at a power supply outlet | Frank Winterstein | 2000-03-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6040640 | Direct voltage back-up system at a power supply outlet | Frank Winterstein | 2000-03-21 |