Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6776619 | Refreshable braille reader | John W. Roberts, Oliver T. Slattery | 2004-08-17 |
| 6692255 | Apparatus and method utilizing bi-directional relative movement for refreshable tactile display | John W. Roberts, Oliver T. Slattery, Edwin Mulkens, Bretton Swope | 2004-02-17 |