Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9637907 | Corrugated stormwater chamber having sub-corrugations | David J. Mailhot, Timothy J. McGrath | 2017-05-02 |
| 9556576 | Corrugated stormwater chamber having sub-corrugations | David J. Mailhot, Timothy J. McGrath | 2017-01-31 |