Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8315562 | Method and apparatus for reducing spurious RF signals in RFID reader | Richard T. Knadle | 2012-11-20 |
| 8305192 | RFID reader with automatic near/far field interrogation mode switching, and related operating methods | Sean Connolly | 2012-11-06 |
| 8258954 | Frequency selective surface aids to the operation of RFID products | Richard T. Knadle | 2012-09-04 |
| 8260384 | Wearable mobile computing system | Thomas Wulff, Russell Calvarese, Shane MacGregor, David Bellows, Robert Sandler +2 more | 2012-09-04 |
| 8245930 | Method and apparatus for augmenting optical barcode scanner with RFID reader | David Bellows, Timothy B. Austin, LuoSheng Chen, Richard T. Knadle, Thomas Wulff | 2012-08-21 |
| 8218801 | Method and system for a headset H-field/E-field canceller | Richard T. Knadle | 2012-07-10 |
| 8217757 | Voice over RFID | Thomas Wulff, Russell Calvarese, Robert Sandler | 2012-07-10 |
| 8174391 | Polarized RFID antenna with spatial diversity | Robert Sandler, Carl DeGiovine, Rehan K. Jaffri | 2012-05-08 |
| 8135354 | Method and system for chopped antenna impedance measurements with an RFID radio | Sean Connolly, Martin Strzelczyk | 2012-03-13 |
| 8077763 | Full-duplex radio frequency echo cancellation | Raj Bridgelall | 2011-12-13 |
| 8035335 | Energy harvesting in RFID systems | Russell Calvarese, Robert Sandler, Thomas Wulff | 2011-10-11 |
| 7902984 | Single frequency low power RFID device | James Giebel, David Goren, Thomas Wulff, Richard T. Knadle, Christopher W. Brock | 2011-03-08 |
| 7884718 | Frequency selective surface aids to the operation of RFID products | Richard T. Knadle | 2011-02-08 |
| 7825775 | Antenna-based trigger | Daniella Strat | 2010-11-02 |
| 7714697 | Token passing protocol for RFID systems | Mohammad Soleimani, Victor Hugo Molina, Martin Strzelczyk, Ron Boschini, Jens Arnold +1 more | 2010-05-11 |
| 7576657 | Single frequency low power RFID device | James Giebel, David Goren, Thomas Wulff, Richard T. Knadle, Christopher W. Brock | 2009-08-18 |
| 7551140 | Low return loss rugged RFID antenna | Richard T. Knadle | 2009-06-23 |
| 7546676 | Method for manufacturing micro-strip antenna element | Timothy B. Austin, Richard T. Knadle | 2009-06-16 |
| 7504948 | Wireless rugged mobile data capture device with integrated RFID reader | Thomas Wulff, Justin Hotard, Brian Viscount, Ian Chamberlin | 2009-03-17 |
| 7423606 | Multi-frequency RFID apparatus and methods of reading RFID tags | Richard T. Knadle, Hal Charych, Raj Bridgelall | 2008-09-09 |
| 7403120 | Reverse infrastructure location system and method | Raj Bridgelall | 2008-07-22 |
| 7339481 | RFID tag with tunable antenna and associated reader | — | 2008-03-04 |
| 7259676 | Mode-diversity RFAID tag and interrogator system and method for identifying an RFAID transponder | Richard T. Knadle | 2007-08-21 |
| 7205953 | Directional antenna array | Richard T. Knadle, Hal Charych, Henry Grossfeld, Raj Bridgelall | 2007-04-17 |
| 7170412 | Angle of position object location system and method | Michael Knox, Raj Bridgelall, Richard T. Knadle, James Joseph Bender | 2007-01-30 |