Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5368672 | Process for making three-dimensional signage | Deborah M. Gunzelman, James L. Bernstein | 1994-11-29 |
| 5240539 | Process for making three-dimensional signage | Deborah M. Gunzelman, James L. Bernstein | 1993-08-31 |
| 4891835 | Method and device for recording and replaying audio communications | Keith Leung, Kathleen T. Quinn, John D. Goldson | 1990-01-02 |
| 4594042 | Device for stacking microcassettes | — | 1986-06-10 |