Frey; Wilfred
Patent Applications and Registrations
Patent applications and USPTO patent grants for Frey; Wilfred.The latest application filed is for "dc and ac uninterruptible power supply".
- Frey; Wilfred - Kelowna CA
- Frey; Wilfred - Calgary CA
| Patent | Date |
|---|---|
| Panel and breaker for distributing UPS power Grant 7,557,468 - Frey July 7, 2 | 2009-07-07 |
| DC and AC uninterruptible power supply Grant 7,259,476 - Frey August 21, 2 | 2007-08-21 |
| DC and AC uninterruptible power supply App 20060238031 - Frey; Wilfred | 2006-10-26 |
| Panel and breaker for distributing UPS power App 20060197383 - Frey; Wilfred | 2006-09-07 |
| Bidirectional communication line filter and surge protector Grant 5,101,180 - Frey March 31, 1 | 1992-03-31 |
| Bag holder Grant 4,951,903 - Frey August 28, 1 | 1990-08-28 |
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