Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6977588 | Automatic dispenser apparatus | William G. Haen, Alan P. Paal, Abtin Spantman, Thomas Michael Leiterman, Patrick Gerald McCutcheon | 2005-12-20 |
| 6903654 | Automatic dispenser apparatus | Lawrence R. Hansen, Thomas Michael Leiterman, William G. Haen, Alan P. Paal, Abtin Spantman +1 more | 2005-06-07 |
| 5946343 | Digital wireless speaker system | William R. Steinike, Mark R. Wolski | 1999-08-31 |
| 5832024 | Digital wireless speaker system | William R. Steinike, Mark R. Wolski | 1998-11-03 |
| 5673323 | Analog spread spectrum wireless speaker system | William R. Steinike, Mark R. Wolski | 1997-09-30 |
| 5581617 | System for short-range transmission of signals over the air using a high frequency carrier | Robert Thomas Buczkiewicz, John A. Lofgren | 1996-12-03 |
| 5491839 | System for short range transmission of a plurality of signals simultaneously over the air using high frequency carriers | — | 1996-02-13 |
| 5299264 | System for short-range transmission of signals over the air using a high frequency carrier | Robert Thomas Buczkiewicz, John A. Lofgren | 1994-03-29 |
| 5265154 | Telephone controller apparatus | — | 1993-11-23 |
| 5161131 | In line switchable audio enhancement device for CD adapter | Robert L. Borchardt | 1992-11-03 |
| 4984296 | Tuned radio apparatus | — | 1991-01-08 |
| 4980665 | Remote control repeater | — | 1990-12-25 |
| 4947180 | FM antenna | — | 1990-08-07 |
| 4847903 | Wireless remote speaker system | — | 1989-07-11 |
| 4829570 | Wireless remote speaker system | — | 1989-05-09 |
| 4750206 | Adapter for TV stereo, SAP and auxiliary signals | — | 1988-06-07 |
| 4734897 | Cassette adapter for playback device, such as a compact disk player | — | 1988-03-29 |
| 4633495 | TV stereo adapter | — | 1986-12-30 |
| 4574389 | Stereophonic receiver having a noise reduction control circuit | — | 1986-03-04 |
| 4277785 | Radio control circuit with microprocessor | Thomas W. Wiesmann | 1981-07-07 |