Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9352327 | Grinder pump basin system | William L. Schmidt, David R. Gilbert, Charles P. Carroll | 2016-05-31 |
| 9004381 | Grinder pump basin system | William L. Schmidt, David R. Gilbert, Charles P. Carroll | 2015-04-14 |
| 8562287 | Grinder pump | William L. Schmidt, Charles P. Carroll | 2013-10-22 |
| D653264 | Cutter blade | William L. Schmidt, Charles P. Carroll | 2012-01-31 |