Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7168882 | Road barrier | — | 2007-01-30 |
| 6409433 | Foundation piles or similar load carrying elements | David Hubbell | 2002-06-25 |
| 5688071 | Road elements, and method of and device for transferring same | — | 1997-11-18 |