Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6990921 | Self-waving flag | Richard C. Levy | 2006-01-31 | |
| 5276909 | Traffic information broadcast system | Laurence R. Nicholson, Robert M. Evans | 1994-01-04 | |
| 5172534 | Chainable building blocks | Eric D. Plambeck | 1992-12-22 | |
| D324692 | Guitar or similar article | Richard C. Levy | 1992-03-17 | |
| 5095799 | Electric stringless toy guitar | Stephen M. Wallace, Charles S. Meyer | 1992-03-17 | |
| 4914638 | Doppler effect speedometer | — | 1990-04-03 | |
| 4862152 | Sonic positioning device | — | 1989-08-29 | |
| 4796891 | Musical puzzle using sliding tiles | — | 1989-01-10 | |
| 4687457 | Hand-held puppet with pseudo-voice generation | — | 1987-08-18 | $127,000 |
| 4589138 | Method and apparatus for voice emulation | Nolan K. Bushnell | 1986-05-13 | |
| 4314236 | Apparatus for producing a plurality of audio sound effects | Steven T. Mayer | 1982-02-02 | |
| 4244574 | Pinball machine with conical playfield | Nolan K. Bushnell | 1981-01-13 |