Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12060089 | Spraying apparatus for applying friction modifying material to railroad rail | Davey Mitchell, David Elvidge, Darren Loo, Doug McKay, Nigel Davis +1 more | 2024-08-13 |
| 11155284 | Rail port insert | David Elvidge | 2021-10-26 |