Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809329 | Apparatus for use in conjunction with lipreading by the profoundly deaf | John R. Walliker, Stuart M. Rosen | 1989-02-28 |
| 4510936 | Apparatus for the electrical stimulation of nerves | David Howard, John R. Walliker | 1985-04-16 |