Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6005891 | System for testing signal transmission/reception apparatus | Raymond B. Chadwick, James Bush, Timothy Przygoda, Boris Sheyer, Christopher Symanski | 1999-12-21 |
| 5404160 | System and method for identifying a television program | Raymond B. Chadwick, Francis R. Ashley | 1995-04-04 |
| 5019899 | Electronic data encoding and recognition system | Glenn M. Boles, Wen S. Chein, Chris P. Symanski, Philippe Des Rioux, Walter Tomkoski | 1991-05-28 |
| 4264928 | Conference video system | — | 1981-04-28 |