Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4925473 | Process and furnace for heat application | John Plocharczyk | 1990-05-15 |
| 4778501 | Process and furnace for heat application | John Plocharczyk | 1988-10-18 |
| 4693552 | Optical apparatus | — | 1987-09-15 |
| 4669813 | Faceplate incorporating an off-axis filter | — | 1987-06-02 |
| 4647152 | Optical apparatus | — | 1987-03-03 |
| 4591232 | Optical display screen utilizing light-absorbing fibers | — | 1986-05-27 |
| 4573082 | Focusable display screen | — | 1986-02-25 |
| 4533210 | Optical fiber light filter using elongated radiation absorbing elements | — | 1985-08-06 |