Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6752970 | Air treatment apparatus and methods | Rick Hill, Ronald Fink | 2004-06-22 |
| 4918568 | Air quality control systems | Judson F. Stone | 1990-04-17 |
| 4375179 | Action for electronic piano | Ray F. Gong, Victor Durk | 1983-03-01 |
| 4319508 | Modular, expandable digital organ system | Dennis E. Kidd, William R. Hoskinson | 1982-03-16 |
| 4256002 | Large scale integrated circuit generator chip for electronic organ | William R. Hoskinson | 1981-03-17 |
| 4253366 | Large scale integrated circuit chip for an electronic organ | William R. Hoskinson | 1981-03-03 |
| 4218949 | Master control LSI chip | Dennis E. Kidd | 1980-08-26 |
| 4203337 | Large scale integrated circuit chip for an electronic organ | Dennis E. Kidd | 1980-05-20 |