Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5225861 | Apparatus for projection of three-dimensional images | — | 1993-07-06 |
| 5151821 | System and devices for time delay 3D | — | 1992-09-29 |
| 5146246 | Apparatus for presentation of three-dimensional images | — | 1992-09-08 |
| 4923758 | Polarizing prescription lenses and method of making | Ned Steinfeld | 1990-05-08 |
| 4865670 | Method of making a high quality polarizer | — | 1989-09-12 |
| 4602856 | Combined photopic and scotopic viewers for two-dimensional moving image displays | — | 1986-07-29 |
| 4372656 | High efficiency optical projector for 3D motion pictures | Alvin M. Marks | 1983-02-08 |
| 4247177 | 3D Multichrome filters for spectacle frames | Alvin M. Marks | 1981-01-27 |
| 4183633 | Motion picture film for three dimensional projection | Arthur P. Kent | 1980-01-15 |