Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7535151 | Single phase unidirectional surface acoustic wave transducer and improved reflectors | Viktor Plesski | 2009-05-19 |
| 7407111 | Surface acoustic wave identification tag having enhanced data content and methods of operation and manufacture thereof | — | 2008-08-05 |
| 7264149 | SAW identification tag discrimination methods | John C. Bellamy | 2007-09-04 |
| 7173360 | Single phase undirectional surface acoustic wave transducer and improved reflectors | Viktor Plesski | 2007-02-06 |
| 7103948 | Method of manufacturing piezoelectric wafers of saw identification tags | Paul Brown | 2006-09-12 |
| 7096279 | Object-naming network infrastructure for identification tags and method of operation thereof | William C. Bonner | 2006-08-22 |
| 7084768 | Anti-collision interrogation pulse focusing system for use with multiple surface acoustic wave identification tags and method of operation thereof | Lewis T. Claiborne | 2006-08-01 |
| 7030762 | Anti-collision interrogation pulse focusing system for use with multiple surface acoustic wave identification tags and method of operation thereof | Lewis T. Claiborne | 2006-04-18 |
| 6966493 | Surface acoustic wave identification tag having enhanced data content and methods of operation and manufacture thereof | — | 2005-11-22 |
| 6958696 | Transfer function system for determining an identifier on a surface acoustic wave identification tag and method of operating the same | John C. Bellamy | 2005-10-25 |
| 6919802 | Multi-layer method of accommodating code collisions from multiple surface acoustic wave identification tags | John C. Bellamy | 2005-07-19 |
| 6759789 | Surface acoustic wave identification tag having an interdigital transducer adapted for code discrimination and methods of operation and manufacture thereof | — | 2004-07-06 |
| 6756880 | Reader and response control system for discrimination between multiple surface acoustic wave identification tags and method of operation thereof | — | 2004-06-29 |
| 6708881 | Reader for a high information capacity SAW identification tag and method of use thereof | — | 2004-03-23 |
| 6268782 | Electro-acoustic device with a variable acoustic wave velocity piezoelectric substrate | Dong Chen | 2001-07-31 |
| 5646584 | Saw filter including electrodes of opposing polarity | Sergei N. Kondratyev, Victor Plessky, Thor Thorvaldsson, David P. Morgan | 1997-07-08 |
| 5610566 | Saw filter with a coupled saw impedance element | Dongpei Chen, Serguei Kondratiev, Victor Plessky, Mohammed A. Sharif | 1997-03-11 |
| 4999535 | Saw transducer with improved bus-bar design | Elio A. Mariani | 1991-03-12 |
| 4682223 | Descrambler unit method and apparatus for television signal descrambling | Lawrence H. Ragan, Darrell L. Ash | 1987-07-21 |
| 4663664 | Electronic ticket method and apparatus for television signal scrambling and descrambling | Lawrence H. Ragan, Darrell L. Ash | 1987-05-05 |
| 4599587 | Impedance element | Peter V. Wright | 1986-07-08 |
| 4577168 | Notch filter | — | 1986-03-18 |
| 4575696 | Method for using interdigital surface wave transducer to generate unidirectionally propagating surface wave | William S. Jones | 1986-03-11 |
| 4491757 | Transversely weighted surface acoustic wave device | — | 1985-01-01 |
| 4491758 | Surface wave device with oversampled withdrawal weighting | — | 1985-01-01 |