Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8325563 | Systems and methods of locating weapon fire incidents using measurements/data from acoustic, optical, seismic, and/or other sensors | Robert B. Calhoun, Robert L. Showen, James G. Beldock, Scott M. Manderville | 2012-12-04 |
| 8134889 | Systems and methods for augmenting gunshot location using echo processing features | Robert L. Showen, Robert B. Calhoun | 2012-03-13 |
| 7599252 | Acoustic location of gunshots using combined angle of arrival and time of arrival measurements | Robert L. Showen, Robert B. Calhoun | 2009-10-06 |
| 7474589 | Acoustic location of gunshots using combined angle of arrival and time of arrival measurements | Robert L. Showen, Robert B. Calhoun | 2009-01-06 |
| 5973998 | Automatic real-time gunshot locator and display system | Robert L. Showen | 1999-10-26 |
| 5497858 | Dynamic motion limiter | Robert L. Cloud, James S. M. Leung | 1996-03-12 |