Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11391152 | Tunnel waterproofing composition and system | David Cozzens, Xia Cao, Steven Horton, Rachel Weston | 2022-07-19 |
| 11242751 | Tunnel waterproofing composition and system | David Cozzens, Xia Cao, Steven Horton, Rachel Weston | 2022-02-08 |