Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7564988 | Audio apparatus | Henry Azima, Nicholas Patrick Roland Hill, Timothy Whitwell, Johan Frank Van Der Linde | 2009-07-21 |
| 4237339 | Audio teleconferencing | John G. Bunting, David R. Guard, Ian S. Groves, Edward G. T. Johnson, Alan E. Stevens | 1980-12-02 |