Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5122287 | Filtration system | — | 1992-06-16 |
| 4670150 | Cross-flow microfiltration lime softener | Daniel L. Comstock, Robert Hagen | 1987-06-02 |
| 4608181 | Water filtration apparatus having upflow buoyant media filter and downflow nonbuoyant media filter | George F. Eaton, Brian W. Hemphill | 1986-08-26 |
| 4547286 | Water filtration process and apparatus having upflow filter with buoyant filter media and downflow filter with nonbuoyant filter media | — | 1985-10-15 |
| 4199451 | Split flow water treatment plant | George F. Eaton | 1980-04-22 |