Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6741720 | In-wall loudspeaker system | — | 2004-05-25 |
| D452485 | Amplified control keypad | Oscar A. Ciornei, Joshua M. Cooper, John M. Cronk, G. William Ramsdell | 2001-12-25 |
| D445406 | Amplified control keypad | Oscar A. Ciornei, Joshua M. Cooper, John M. Cronk, G. William Ramsdell | 2001-07-24 |
| D445095 | Amplified control keypad | Oscar A. Ciornei, Joshua M. Cooper, John M. Cronk, G. William Ramsdell | 2001-07-17 |
| D444775 | Amplified control keypad | Oscar A. Ciornei, Joshua M. Cooper, John M. Cronk, G. William Ramsdell | 2001-07-10 |
| D444774 | Amplified control keypad | Oscar A. Ciornei, Joshua M. Cooper, John M. Cronk, G. William Ramsdell | 2001-07-10 |
| D435523 | Remote control keypad | Oscar A. Ciornei, Joshua M. Cooper, John M. Cronk, G. William Ramsdell, Chang-Sun Lee +1 more | 2000-12-26 |
| D434735 | Amplified control keypad | Oscar A. Ciornei, Joshua M. Cooper, John M. Cronk, G. William Ramsdell | 2000-12-05 |