Hansen; Roy S.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hansen; Roy S..The latest application filed is for "wireless device and method of operation".
- Hansen; Roy S. - Dragor N/A DK
- Hansen; Roy S. - Drag.o slashed.r DK
| Patent | Date |
|---|---|
| Wireless device and method of operation Grant 8,725,101 - Ruohonen , et al. May 13, 2 | 2014-05-13 |
| Wireless Device And Method Of Operation App 20130012135 - Ruohonen; Jari Juhani ; et al. | 2013-01-10 |
| Hearing aid compensating for acoustic feedback Grant 5,619,580 - Hansen | 1997-04-08 |
| Hearing aid having compensation for acoustic feedback Grant 5,259,033 - Goodings , et al. No | 1993-11-02 |
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