Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6343752 | Indoor wastewater disposal system and tank therefor | Paul Zalewski, Eric Hess | 2002-02-05 |
| D425523 | Home wastewater disposal unit | — | 2000-05-23 |
| 5816510 | Grinder pump station | George A. Earle, III, Clark A. Henry | 1998-10-06 |
| 5752315 | Grinder pump station and method of manufacture thereof | George A. Earle, III, Clark A. Henry | 1998-05-19 |
| 5562254 | Grinder pump station | George A. Earle, III, Clark A. Henry | 1996-10-08 |
| 5439180 | Readily installed universal sewage grinder pump | Thomas R. Baughman, Clark A. Henry, William R. Schouten, Gene A. Rougeux | 1995-08-08 |