Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4695375 | Self-contained hydraulically operable water purifier | — | 1987-09-22 |
| 4391712 | Reverse-osmosis water purifier apparatus and method | Robert B. Sprague | 1983-07-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4695375 | Self-contained hydraulically operable water purifier | — | 1987-09-22 |
| 4391712 | Reverse-osmosis water purifier apparatus and method | Robert B. Sprague | 1983-07-05 |