Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7788815 | Prism pole with direct readout | Richard Yandrick, Edward Wilkinson | 2010-09-07 |
| 7251899 | Prism pole | Richard Yandrick, Edward Wilkinson | 2007-08-07 |
| 7228639 | Invert measuring device | Edward Wilkinson, Richard Yandrick | 2007-06-12 |
| 4950425 | Method of decomposing alkyl phosphate | Kenneth T. Rowbottom, Terence M. Conboy, Graham V. Hutson | 1990-08-21 |
| 4208018 | Method and apparatus for winding an endless tape | — | 1980-06-17 |