Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6832653 | Method for enhancing gas well secondary recovery operations | John Hayhurst | 2004-12-21 |
| 6795019 | Method and system for calibrating wireless location systems | — | 2004-09-21 |
| 6677895 | System and method for determining the location of a transmitting mobile unit | — | 2004-01-13 |