Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4324372 | High density belt driven digital data tape cartridge | Harry R. Robinson | 1982-04-13 |
| 4317722 | Waste solvent recovery apparatus | Frank A. Fitz | 1982-03-02 |
| 4219169 | Floating roller magnetic tape cartridge | — | 1980-08-26 |
| 4209144 | Floating roller tape cartridge | — | 1980-06-24 |