Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4273809 | Method of preparing cast resin lenses | Don H. Rotenberg | 1981-06-16 |
| 4238524 | Process for identification marking clear plastic articles | Don H. Rotenberg | 1980-12-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4273809 | Method of preparing cast resin lenses | Don H. Rotenberg | 1981-06-16 |
| 4238524 | Process for identification marking clear plastic articles | Don H. Rotenberg | 1980-12-09 |