Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11472245 | Amphibious vehicle power trains | Hans Weekers, Simon James Longdill, Stephen John Briggs | 2022-10-18 |
| 10744829 | Amphibious vehicle power trains | Hans Weekers, Simon James Longdill, Stephen John Briggs | 2020-08-18 |
| 9764611 | Amphibious vehicle power trains | Hans Weekers, Simon James Longdill, Stephen John Briggs | 2017-09-19 |
| 8454398 | Amphibious vehicle power trains | Hans Weekers, Simon James Longdill, Stephen John Briggs | 2013-06-04 |