Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12294823 | Pivot attachment for headphones | Allen T. Graff, Daniel C. Haferman, Zhen Xu | 2025-05-06 |
| 12273674 | Headphones | Allen T. Graff, Daniel C. Haferman, Zhen Xu | 2025-04-08 |
| 11653144 | Open audio device | John Van Hook, Michelle Gelberger, Christopher Scott Mucaria, Kyle A. Vecchiarino, David Avi Dick +2 more | 2023-05-16 |
| 11033931 | Wood substrate including an abrasion resistant coating | Dong Tian, Burton L. Wilson | 2021-06-15 |
| 10951970 | Open audio device | Ryan C. Struzik, Michael Stark, David J. Fustino, Allen T. Graff | 2021-03-16 |
| 10924838 | Audio device | Allen T. Graff | 2021-02-16 |
| 10812893 | Arm for napeband-style earphone system | Ryan Joseph Wexler | 2020-10-20 |
| 10582292 | Printed circuit board (PCB) mount for headphone earcup | Christopher A. Barnes | 2020-03-03 |
| 10484772 | Hidden rear cavity vent | Johnpaul P. Barrieau, Richard L. Pyatt, Jonathan D. Turner | 2019-11-19 |
| 10368157 | Adjustable earcup in continuous headband-spring headphone system | Benjamin Zelnick, Bennett P. Daley | 2019-07-30 |
| 9953629 | Flexible waveguide band | Michael Andrew Zalisk, Daniel Winchell Tellier, Richard Arthur Grebe | 2018-04-24 |