Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4688119 | Detection and amplification circuit | — | 1987-08-18 |
| 4502082 | Spiral recording and associated system | Herbert U. Ragle | 1985-02-26 |
| 4419700 | Dual-track spiral recording and associated system | Herbert U. Ragle | 1983-12-06 |
| 4327386 | Pneumatic commutator for end-wise partitioning | Dean DeMoss, Ko Ko Gyi, Herbert U. Ragle | 1982-04-27 |
| 4209810 | Di-gap, variable-frequency recording technique and associated system | Herbert U. Ragle | 1980-06-24 |