Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9576442 | Electronic sound level control in audible signaling devices | Christopher M. Baldwin, Mark T. Monnett | 2017-02-21 |
| 8674817 | Electronic sound level control in audible signaling devices | Christopher M. Baldwin, Mark T. Monnett | 2014-03-18 |
| 6987445 | Water resistant audible signal | George Burnett, Daniel W. O'Brien | 2006-01-17 |