Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11585057 | Transition barrier for connecting a permanent barrier to a temporary barrier | John David Pierson, Nauman Mansoor Sheikh | 2023-02-21 |
| 10961671 | Apparatus and method for attaching signs to foundation members such as road barriers | John David Pierson, James Harold Delamere, Mohammad Bagher Vakili | 2021-03-30 |
| 10873287 | Apparatus and method for attaching signs to foundation members such as road barriers | James Harold Delamere, John David Pierson, Mohammad Bagher Vakili | 2020-12-22 |