Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6933931 | Method and apparatus of position location | Don Whitaker, Paul Alexander | 2005-08-23 |
| 5208846 | Subscriber loop tester for telephone switching systems | John A. Hammond, James W. Edwards | 1993-05-04 |
| 4841437 | System architecture for a test apparatus having primary and dependent processors | Richard E. Pospisil | 1989-06-20 |
| 4740744 | Digital signal processing apparatus for analog signals having wide frequency and dynamic ranges | Donald N. Simkins | 1988-04-26 |