Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12415553 | Traction rod assembly | William Alan Aitken, Robert James Wheeler | 2025-09-16 |
| 7908974 | Railway bogies | Paul Hewitt | 2011-03-22 |
| 4836709 | Water wave absorber | Jozinus Ploeg | 1989-06-06 |