Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5566241 | Method and apparatus for presentation of on-line directional sound | Russell F. Lewis, Dale A. Cone, Norman A. Josephson | 1996-10-15 |
| 5469511 | Method and apparatus for presentation of on-line directional sound | Russell F. Lewis, Dale A. Cone, Norman A. Josephson | 1995-11-21 |
| 5322441 | Method and apparatus for providing a portable visual display | Russell F. Lewis, Dale A. Cone, Norman A. Josephson | 1994-06-21 |