Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6961020 | Position location using broadcast analog television signals | James J. Spilker, Jr. | 2005-11-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6961020 | Position location using broadcast analog television signals | James J. Spilker, Jr. | 2005-11-01 |