Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12308979 | Wireless stereo headset with bidirectional diversity | Jacobus Cornelis Haartsen, Aalbert Stek | 2025-05-20 |
| 11956084 | Wireless stereo headset with bidirectional diversity | Jacobus Cornelis Haartsen, Aalbert Stek | 2024-04-09 |
| 11848785 | Wireless stereo headset with diversity | Jacobus Cornelis Haartsen, Aalbert Stek | 2023-12-19 |
| RE43872 | Headset for use with a communication and/or multimedia device | Barteld Trip, Erwin Weinans | 2012-12-25 |
| 8331848 | Audio broadcast in a network | Erwin Weinans, Bart Trip | 2012-12-11 |
| 7928705 | Switched mode voltage converter with low-current mode and methods of performing voltage conversion with low-current mode | Franciscus Nicolaas Martinus Hooijschuur, Jacobus Cornelis Haartsen | 2011-04-19 |
| 7925214 | Distributed bluetooth system | Erwin Weinans, Barteld Trip | 2011-04-12 |
| 7616760 | Headset for use with a communication and/or multimedia device | Barteld Trip, Erwin Weinans | 2009-11-10 |
| 7319433 | Wideband antenna device with extended ground plane in a portable device | Johan Anton Eduard Rosenberg, Johannes Lucas Schreuder | 2008-01-15 |