Issued Patents All Time
Showing 25 most recent of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11205058 | Interrogator and interrogation system employing the same | John P. Volpi, Eric McMurry | 2021-12-21 |
| 10628645 | Interrogator and interrogation system employing the same | John P. Volpi, Eric McMurry | 2020-04-21 |
| 10185853 | Interrogator and interrogation system employing the same | John P. Volpi, Eric McMurry | 2019-01-22 |
| 9710683 | Interrogator and interrogation system employing the same | John P. Volpi, Eric McMurry | 2017-07-18 |
| 9135669 | Interrogation system employing prior knowledge about an object to discern an identity thereof | Steven D. Roemerman, John P. Volpi | 2015-09-15 |
| 8948279 | Interrogator and interrogation system employing the same | John P. Volpi, Eric McMurry | 2015-02-03 |
| 8542717 | Interrogator and interrogation system employing the same | John P. Volpi, David W. Hensley | 2013-09-24 |
| 8391488 | Method and apparatus for using navigation signal information for geoencryption to enhance security | Di Qiu, Sherman C. Lo, Per K. Enge, Dan Boneh, Ron Karpf | 2013-03-05 |
| 8174366 | Interrogator and interrogation system employing the same | John P. Volpi, Wallace A. Kluck, David W. Hensley | 2012-05-08 |
| 7893840 | Interrogator and interrogation system employing the same | John P. Volpi, David W. Hensley | 2011-02-22 |
| 7671744 | Interrogator and interrogation system employing the same | John P. Volpi, David W. Hensley | 2010-03-02 |
| 7512989 | Data loader using location identity to provide secure communication of data to recipient devices | — | 2009-03-31 |
| 7501948 | Interrogation system employing prior knowledge about an object to discern an identity thereof | Steven D. Roemerman, John P. Volpi | 2009-03-10 |
| 6839539 | RF signal repeater in mobile communications systems | Randolph L. Durrant, John Reece | 2005-01-04 |
| 6522642 | Antenna diversity techniques | — | 2003-02-18 |
| 6501955 | RF signal repeater, mobile unit position determination system using the RF signal repeater, and method of communication therefor | Randolph L. Durrant, John Reece | 2002-12-31 |
| 6388997 | Timing adjustment control for efficient time division duplex communication | — | 2002-05-14 |
| 6366566 | Efficient communication system using time division multiplexing and timing adjustment control | — | 2002-04-02 |
| 6363107 | Preamble code structure and detection method and apparatus | — | 2002-03-26 |
| 6356607 | Preamble code structure and detection method and apparatus | Robert Monroe | 2002-03-12 |
| 6154486 | Preamble code structure and detection method and apparatus | Robert Monroe | 2000-11-28 |
| 6141373 | Preamble code structure and detection method and apparatus | — | 2000-10-31 |
| 6094421 | Timing adjustment control for efficient time division duplex, frequency division duplex or hybrid time division duplex/frequency division duplex communication | — | 2000-07-25 |
| 6049538 | Efficient communication system using time division multiplexing and timing adjustment control | — | 2000-04-11 |
| 6041046 | Cyclic time hopping in time division multiple access communication system | Claude M. Williams | 2000-03-21 |