Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8834066 | Segmental bio-retention basin system | Paul Wilhelms, Jim Fetterman, Robert J. Race, David Mudd | 2014-09-16 |
| 8596909 | Segmental bio-retention basin system | Paul Wilhelms, Jim Fetterman | 2013-12-03 |
| 8157991 | Segmental bio-retention basin system | Paul Wilhelms, Jim Fetterman | 2012-04-17 |