Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D726333 | Restroom structure | — | 2015-04-07 |
| 7503339 | Cover for lift stations | Mark Sheldon | 2009-03-17 |
| 6772782 | Cable routing in wastewater lift station | Mark Sheldon, David B. Bogan, Sarah B. Bogan | 2004-08-10 |
| 6644342 | Modular integrated wastewater lift station construction kit | Mark Sheldon, David B. Bogan, Sarah B. Bogan | 2003-11-11 |