Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8379813 | Method and apparatus for authorizing a calling card telephone call | Daniel T. Smires | 2013-02-19 |
| 5539803 | Wireless test mode for a cordless telephone | Ghanshyam A. Bhat, Arthur F. Corvo, Gerard William Elson, Donato Joseph Forlenzo, Douglas P. Greeley +4 more | 1996-07-23 |
| 4707689 | Adaptive thresholding scheme for optically-based touch screens | Philip Silvano DiPiazza, Dale E. Lynn | 1987-11-17 |
| 4354393 | Phase locked gyroscope wheel supply for synchronous hysteresis motor | Robert H. Acker, Frank L. Rosen | 1982-10-19 |
| 4243976 | Ternary to binary converter | Richard C. Warner | 1981-01-06 |