Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11434613 | Barrier construction | Terry Colquhoun, Andrew Karl Diehl, Christopher James Allington, Chris Williamson, Mark Whiteside +4 more | 2022-09-06 |
| 10544554 | Barrier construction | Terry Colquhoun, Andrew Karl Diehl, Christopher James Allington, Chris Williamson, Mark Whiteside +4 more | 2020-01-28 |
| 10501902 | Road barrier | Terry Colquhoun, Henry John Hare, Mark Whiteside | 2019-12-10 |
| 10329722 | Barrier Construction | Terry Colquhoun, Andrew Karl Diehl, Christopher James Allington, Chris Williamson, Mark Whiteside +4 more | 2019-06-25 |
| 9758936 | Post assembly | — | 2017-09-12 |
| 9631331 | Barrier construction | Terry Colquhoun, Andrew Karl Diehl, Christopher James Allington, Chris Williamson, Mark Whiteside +4 more | 2017-04-25 |
| 9217230 | Barrier system | — | 2015-12-22 |
| 8960647 | Barrier system | — | 2015-02-24 |
| 8858112 | Road barrier | Terry Colquhoun, Henry John Hare, Mark Whiteside | 2014-10-14 |