Issued Patents All Time
Showing 101–125 of 126 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5929752 | Clandestine missing vehicle location reporting using cellular channels | Hamid Najafi, John F. Schipper | 1999-07-27 |
| 5918183 | Concealed mobile communications system | Gregory T. Janky | 1999-06-29 |
| 5914941 | Portable information storage/playback apparatus having a data interface | — | 1999-06-22 |
| 5892454 | Hybrid monitoring of location of a site confinee | John F. Schipper | 1999-04-06 |
| 5841979 | Enhanced delivery of audio data | Nathan Schulhof, Grant Jasmin | 1998-11-24 |
| 5799082 | Secure authentication of images | Michael D. Murphy, John F. Schipper | 1998-08-25 |
| 5794174 | System for automatic vehicle location viewing via television | James C. Reynolds | 1998-08-11 |
| 5786789 | GPS and cellphone unit having add-on modules | — | 1998-07-28 |
| 5777580 | Vehicle location system | David G. Bird | 1998-07-07 |
| 5760742 | Integrated mobile GIS/GPS/AVL with wireless messaging capability | Charles N. Branch, Mark Edward Nichols | 1998-06-02 |
| 5754657 | Authentication of a message source | John F. Schipper, Peter Van Wyck Loomis, Allan M. Pelley, Len Sheynblat | 1998-05-19 |
| 5751245 | Vehicle route and schedule exception reporting system | Eric Klein, John F. Schipper | 1998-05-12 |
| 5644318 | SATPS dynamic surveying from a moving platform | Valentine L. Denninger, James Jones, Michael D. Murphy, Boris G. Tankhilevich | 1997-07-01 |
| 5629693 | Clandestine location reporting by a missing vehicle | — | 1997-05-13 |
| 5625556 | Accurate time standard for vehicle operation | John F. Schipper | 1997-04-29 |
| 5572442 | System for distributing subscription and on-demand audio programming | Nathan Schulhof | 1996-11-05 |
| 5568119 | Arrestee monitoring with variable site boundaries | John F. Schipper | 1996-10-22 |
| 5568152 | Integrated image transfer for remote target location | Peter Van Wyck Loomis, John F. Schipper | 1996-10-22 |
| 5557541 | Apparatus for distributing subscription and on-demand audio programming | Nathan Schulhof | 1996-09-17 |
| 5552772 | Location of emergency service workers | John F. Schipper | 1996-09-03 |
| 5510797 | Provision of SPS timing signals | Charles Abraham | 1996-04-23 |
| 5379045 | SATPS mapping with angle orientation calibrator | Charles Gilbert, Steve Kersey | 1995-01-03 |
| 5355140 | Emergency reporting for marine and airborne vessels | Michael W. Slavin, Jeffrey S. Rubin | 1994-10-11 |
| 5173715 | Antenna with curved dipole elements | Eric B. Rodal, Michael Detro, David R. Gildea | 1992-12-22 |
| 5165109 | Microwave communication antenna | Ching-Chih Han | 1992-11-17 |