Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4561087 | Conductive video disc | Pabitra Datta, Dennis Lee Matthies, Hirohisa Kawamoto | 1985-12-24 |
| 4472295 | Conductive molding composition and discs therefrom | Louis A. Dimarco | 1984-09-18 |
| 4402798 | Method for the manufacture of a metallic recording substrate for a capacitance electronic disc and the recording substrate obtained thereby | Istvan Gorog | 1983-09-06 |
| 4198060 | Wiping apparatus and method for a high-density information record | Frederick L. Dixon, Edward G. Trachman | 1980-04-15 |