Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7696881 | RFID systems and methods employing infrared localization | David G. Worthy | 2010-04-13 |
| 7486189 | RFID systems and methods employing infrared localization | David G. Worthy | 2009-02-03 |
| 7292628 | Identification system for monitoring the presence / absence of members of a defined set | Ralph J. Koerner | 2007-11-06 |
| 7049933 | Identification device detection using multiple signal combination | — | 2006-05-23 |
| 6611556 | Identification system for monitoring the presence/absence of members of a defined set | Ralph J. Koerner | 2003-08-26 |
| 6552661 | Zone based radio frequency identification | Roc Lastinger, John J. Coulthard | 2003-04-22 |
| 6326759 | Ball joint gimbal system | Donald G. Quist, William S. Wight, Carl M. Zorzi | 2001-12-04 |
| 5785048 | Inhaler device with means for assessing its depletion level | — | 1998-07-28 |
| 5519318 | Triaxial magnetic heading sensing apparatus having magnetaresistors and nulling coils | Anthony E. Lifur, Michael J. Wall | 1996-05-21 |
| 5066952 | Non-linear data conversion system for dynamic range digital signal processing | — | 1991-11-19 |
| 4325052 | Trailer light connection system | — | 1982-04-13 |