Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4778951 | Arrays of resistive elements for use in touch panels and for producing electric fields | William Pepper, Jr. | 1988-10-18 |
| 4280387 | Frequency following circuit | — | 1981-07-28 |
| 4213367 | Monophonic touch sensitive keyboard | — | 1980-07-22 |
| 4202238 | Compressor-expander for a musical instrument | — | 1980-05-13 |