Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6622790 | Method for enhancing gas well secondary recovery operations | John Hayhurst | 2003-09-23 |
| 6608593 | System and method for determining the location of a transmitter using passive reflectors or refractors as proxy receivers | — | 2003-08-19 |
| 6580393 | System and method for determining the location of a transmitter using passive reflectors or refractors as proxy receivers and using database querying | — | 2003-06-17 |
| 6522296 | Method and system for calibrating wireless location systems | — | 2003-02-18 |
| 6504515 | High capacity broadband cellular/PCS base station using a phased array antenna | Robert C. Hildebrand, Julian Bartow Willingham | 2003-01-07 |