Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6888442 | Substrate/document authentication using randomly dispersed dielectric components | Michael O'Reilly | 2005-05-03 |
| 6850553 | Chirp slope multiple access | G. Alton Waschka | 2005-02-01 |
| 6754502 | Geolocation of cellular phone using supervisory audio tone transmitted from single base station | Robert C. Hildebrand, Julian Bartow Willingham, David A. Hosang | 2004-06-22 |
| 6730910 | Detecting infrared radiation | Clovis R. Haden, Marlan O. Scully, Vitaly Kocharovsky, Alexey Belyanin | 2004-05-04 |
| 6655582 | System and method for identifying objects using single connection line | Michael A. Wohl | 2003-12-02 |
| 6393045 | Spread spectrum baseband modulation of magnetic fields for communications and proximity sensing | Donald K. Belcher, Ronald J. Hash | 2002-05-21 |
| 6380894 | Multi-lateration system with automatic calibration and error removal | Donald K. Belcher, Michael A. Wohl | 2002-04-30 |
| 6366626 | Sub-symbol matched filter-based frequency error processing for spread spectrum communication systems | — | 2002-04-02 |
| 6366242 | Computer workstation tool for displaying performance estimate of tagged object geo-location system for proposed geometry layout of tag transmission readers | David J. Stryker, Donald K. Belcher | 2002-04-02 |
| 6327872 | Method and apparatus for producing a pressurized high purity liquid carbon dioxide stream | Jessi Lynn Pike, David C. H. Cheng, Kelly Leitch | 2001-12-11 |
| 6292665 | Geolocation of cellular phone using supervisory audio tone transmitted from single base station | Robert C. Hildebrand, Julian Bartow Willingham, David A. Hosang | 2001-09-18 |
| 6284685 | Light-induced refractive index changes in low temperature glasses | Nicholas Francis Borrelli, Stojan Radic, Paul A. Tick | 2001-09-04 |
| 6268723 | Magnetic field emission and differential receiver coil configuration for discriminating response magnetic field from transponder tag | Ronald J. Hash, Donald K. Belcher | 2001-07-31 |
| 6170748 | Object identification system employing pulsed magnetic field-stimulated, tag-embedded transponder | Ronald J. Hash, Donald K. Belcher | 2001-01-09 |
| 6127976 | Distributed network for multi-lateration with circularly polarized antenna for hemispherical coverage | David J. Stryker, Ronald J. Hash, Donald K. Belcher, Michael A. Wohl, Timothy C. Harrington | 2000-10-03 |
| 6121926 | Radio geo-location system with advanced first received wavefront arrival determination | Donald K. Belcher, Michael A. Wohl | 2000-09-19 |
| 5995046 | Radio geo-location system with advanced first received wavefront arrival determination | Donald K. Belcher, Michael A. Wohl | 1999-11-30 |
| 5907436 | Multilayer dielectric diffraction gratings | Michael D. Perry, Jerald A. Britten, Hoang T. Nguyen, Bruce W. Shore | 1999-05-25 |
| 5253103 | Nonlinear optics utilizing composite optical material architectures for providing enhanced nonlinear susceptibility | John Sipe | 1993-10-12 |
| 4938596 | Phase conjugate, common path interferometer | Daniel J. Gauthier, Robert Jungquist, Laurie L. Voci | 1990-07-03 |
| 4918699 | System for combining laser beam by transfer of energy therebetween in atomic vapor | Alexander Gaeta, Mark T. Gruneisen, Kenneth R. MacDonald | 1990-04-17 |
| 4778261 | Method and apparatus for non-frequency-shifted, phase conjugation of optical waves by brillouin-enhanced four-wave mixing | Paul Narum, Mark D. Skeldon | 1988-10-18 |
| 4669084 | Error correction processing scheme for sequential codec | William F. Hartman | 1987-05-26 |
| 4653053 | Performance monitoring of antijam satellite communication network | Guy M. Pelchat | 1987-03-24 |
| 4291277 | Adaptive predistortion technique for linearizing a power amplifier for digital data systems | Robert C. Davis | 1981-09-22 |