Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D555819 | Worklight | John L. Schira, Roger W. Britt, Mark T. Forest, David T. Bilenkey | 2007-11-20 |
| 7234833 | Work light | John L. Schira, Heather Frances Britt | 2007-06-26 |
| 5202883 | Digital key stystem architecture | Bernard J. Trudel, Mark R. Coomber, William C. Mitchell | 1993-04-13 |
| 4230908 | Telephone summing circuit | John C. Davis | 1980-10-28 |