Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4343855 | Transfer film | — | 1982-08-10 |
| 4206969 | Directional front projection screen | Sanford Cobb, Jr., Dennis F. Vanderwerf | 1980-06-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4343855 | Transfer film | — | 1982-08-10 |
| 4206969 | Directional front projection screen | Sanford Cobb, Jr., Dennis F. Vanderwerf | 1980-06-10 |