Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10006303 | Contra-flow strips, contra-flow seal segments, and methods for inhibiting leakage | William P. Sanders | 2018-06-26 |
| 9938686 | Locakable manhole covers and methods for locking a manhole cover | Lawrence E. Jordan, Michael O'Donnell, Joseph Vainauskas | 2018-04-10 |