Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8054220 | Variable measurement rate method for positioning systems | David Tester, Nigel James Tolson, Ian Watson | 2011-11-08 |
| 7894987 | Hot zones trigger method for location-based applications and services | David Tester | 2011-02-22 |