Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11237639 | Method and system for electronic communication by persons with disabilities | Alexander Singh Alvarado | 2022-02-01 |
| 11017643 | Methods and systems for augmentative and alternative communication | Benjamin Berkowitz, Blake Earl Martinson, Zihan Zhu, Richard Rives Bird | 2021-05-25 |
| 10339768 | Methods and systems for augmentative and alternative communication | Benjamin Berkowitz, Blake Earl Martinson, Zihan Zhu, Richard Rives Bird | 2019-07-02 |
| 9595171 | Methods and systems for augmentative and alternative communication | Benjamin Berkowitz, Blake Earl Martinson, Zihan Zhu, Richard Rives Bird | 2017-03-14 |
| 6577739 | Apparatus and methods for proportional audio compression and frequency shifting | Christopher Turner | 2003-06-10 |