Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5358537 | Process for dyeing polymeric fibers | David R. Kelly, Christopher S. Bryant | 1994-10-25 |
| 4525751 | Disc record with tapered groove | Edward J. Freeman, John Economou, John G. Pecorari, Gunter John, Jerome Barth Halter +2 more | 1985-06-25 |
| 4317192 | Head suspension velocity control apparatus for electromechanical recorder | — | 1982-02-23 |
| 4316143 | Speed deviation detector for servo controlled disc mastering turntable | — | 1982-02-16 |