Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12116291 | Water restoration system | — | 2024-10-15 |
| 8002977 | Storm drain anchored grate cover | Mark D. Shaw, J. Tad Heyman | 2011-08-23 |
| 7879233 | Drain grate filter assembly with compressible anchors | Mark D. Shaw, J. Tad Heyman | 2011-02-01 |
| 7563364 | Curb inlet filter | Mark D. Shaw, J. Tad Heyman, Laurence M. Bierce | 2009-07-21 |