Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9189929 | Supplemental alert generation device | David E. Albert, James J. Lewis | 2015-11-17 |
| 8847779 | Speaker enclosure design for efficiently generating an audible alert signal | James J. Lewis, David E. Albert | 2014-09-30 |
| 8749394 | System and method for efficiently generating audible alarms | James J. Lewis, David E. Albert | 2014-06-10 |
| 8558708 | Supplemental alert generation device with speaker enclosure assembly | David E. Albert, James J. Lewis | 2013-10-15 |
| 8525689 | Speaker enclosure design for efficiently generating an audible alert signal | James J. Lewis, David E. Albert | 2013-09-03 |
| 8269625 | Signal processing system and methods for reliably detecting audible alarms | Leslies D. Hoy, David E. Albert, James J. Lewis | 2012-09-18 |
| 8242899 | Supplemental alert generation device for retrofit applications | David E. Albert, James J. Lewis | 2012-08-14 |
| 8237577 | Supplemental alert generation device | David E. Albert, James J. Lewis | 2012-08-07 |
| 5735285 | Method and hand-held apparatus for demodulating and viewing frequency modulated biomedical signals | David E. Albert, Carl J. Rieger, Colin J. Cumming, Leslie D. Hoy | 1998-04-07 |