Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7788815 | Prism pole with direct readout | Edward Wilkinson, John Wilkinson | 2010-09-07 |
| 7251899 | Prism pole | Edward Wilkinson, John Wilkinson | 2007-08-07 |
| 7228639 | Invert measuring device | John Wilkinson, Edward Wilkinson | 2007-06-12 |