Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5381554 | Uninterrupted power supply (UPS) system interfacing with communications network | Dale R. Langer | 1995-01-10 | $1,530,000 |
| 5319571 | UPS system with improved network communications | Dale R. Langer | 1994-06-07 | $1,692,000 |