Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9121149 | Posts for road safety barrier | Graham T. Sharp, Sean Billingham, Steve Wells, Matt Harriman | 2015-09-01 |
| 8985891 | Posts for road safety barrier | Graham T. Sharp, Sean Billingham | 2015-03-24 |
| 7497640 | Road safety barriers | Graham T. Sharp, Sean Billingham | 2009-03-03 |
| 6360522 | Rope for conveying systems | — | 2002-03-26 |
| 5797254 | High strength core for wire ropes | — | 1998-08-25 |
| 5738466 | Ribbed flexible member for casting into an anchorage medium | Peter S. Ashmore | 1998-04-14 |
| 5622454 | Anchor bolt for stabilizing rock strata and method of installing | Peter S. Ashmore | 1997-04-22 |
| 5307615 | Flexible tension member | Yeung C. Tong | 1994-05-03 |
| 5269128 | Wire ropes with cores having elliptically curved grooves thereon | Michael T. Burtoft | 1993-12-14 |
| 4813221 | Flexible tension members | Philip Christian | 1989-03-21 |
| 4655033 | Method and equipment for making stranded ropes | Philip Christian | 1987-04-07 |
| 4514058 | Transmission cable with helical support elements of curvilinear profile | — | 1985-04-30 |
| 4362227 | Clutches and brakes | Anthony Mather | 1982-12-07 |