Issued Patents All Time
Showing 25 most recent of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12300209 | Wearable active noise reduction (ANR) device having low frequency feedback loop modulation | Ole Mattis Nielsen, David J. Warkentin, Lei Cheng, Brandon Lee Olmos | 2025-05-13 |
| 12148413 | Computational architecture for active noise reduction device | Ricardo F. Carreras, Christopher J. Mulhearn, Joseph H. Cattell | 2024-11-19 |
| 11932060 | Chassis mounted energy extraction and delivery system | Joshua Butler, Kyle Walker, Redza Shah, Zane McCarthy, Aaron McGraw | 2024-03-19 |
| 11875768 | Wearable active noise reduction (ANR) device having low frequency feedback loop modulation | Ole Mattis Nielsen, David J. Warkentin, Lei Cheng, Brandon Lee Olmos | 2024-01-16 |
| 11785382 | Gain-adaptive active noise reduction (ANR) device | Joseph H. Cattell, Dale McElhone | 2023-10-10 |
| 11763794 | Computational architecture for active noise reduction device | Ricardo F. Carreras, Christopher J. Mulhearn, Joseph H. Cattell | 2023-09-19 |
| 11660418 | Biometric feedback as an adaptation trigger for active noise reduction, masking, and breathing entrainment | Dale McElhone, Jeffrey M. Ellenbogen, Adam Charles Furman, Jonathan Zonenshine, Christopher R. Paetsch | 2023-05-30 |
| 11568849 | Wearable active noise reduction (ANR) device having low frequency feedback loop modulation | Ole Mattis Nielsen, David J. Warkentin, Lei Cheng, Brandon Lee Olmos | 2023-01-31 |
| 11483655 | Gain-adaptive active noise reduction (ANR) device | Joseph H. Cattell, Dale McElhone | 2022-10-25 |
| 11386882 | Computational architecture for active noise reduction device | Ricardo F. Carreras, Christopher J. Mulhearn, Joseph H. Cattell | 2022-07-12 |
| 11164554 | Wearable active noise reduction (ANR) device having low frequency feedback loop modulation | Ole Mattis Nielsen, David J. Warkentin, Lei Cheng, Brandon Lee Olmos | 2021-11-02 |
| D919415 | Bracket | Kyle Walker, William Davis Smith, Jr., Christopher R. McKulsky | 2021-05-18 |
| 10987483 | Biometric feedback as an adaptation trigger for active noise reduction, masking, and breathing entrainment | Dale McElhone, Jeffrey M. Ellenbogen, Adam Charles Furman, Jonathan Zonenshine, Christopher R. Paetsch | 2021-04-27 |
| 10753047 | Direct fixation fastener | Robert Alsop, Arka Prabha Roy | 2020-08-25 |
| 10614791 | Systems and methods of active noise reduction in headphones | Ryan terMeulen, Daniel M. Gauger, Jr. | 2020-04-07 |
| 10580398 | Parallel compensation in active noise reduction devices | Joseph H. Cattell, Ricardo F. Carreras | 2020-03-03 |
| 10553195 | Dynamic compensation in active noise reduction devices | Joseph H. Cattell, David J. Warkentin | 2020-02-04 |
| D828397 | Direct fixation fastener | Robert Alsop, Arka Prabha Roy | 2018-09-11 |
| 9747887 | Systems and methods of active noise reduction in headphones | Ryan terMeulen, Daniel M. Gauger, Jr. | 2017-08-29 |
| 9670623 | Stray current resistant direct fixation fastener | Korhan Ciloglu, Robert Alsop, Pete Frye | 2017-06-06 |
| D753039 | Rear fairing | Jonathan Duncan, Wallace A. Peltola, Brian Hannon, Alec C. Wong, Piotr Stegawski +2 more | 2016-04-05 |
| 9004372 | Dual hardness bonded direct fixation fastener | Robert Alsop, Korhan Ciloglu, Hakan Eksi | 2015-04-14 |
| 8985476 | Rail cover and clip system for embedded track systems | Robert Alsop | 2015-03-24 |
| D724490 | Third rail bracket and coverboard | Korhan Ciloglu, Robert Alsop | 2015-03-17 |
| 5724433 | Adaptive gain and filtering circuit for a sound reproduction system | A. Maynard Engebretson | 1998-03-03 |