Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6431198 | Pumping system for the injection of measured quantities of fluid into a fluid stream | Frank A. Walton | 2002-08-13 |
| 6357466 | Pumping system for the injection of measured quantities of fluid into a fluid stream | Frank A. Walton | 2002-03-19 |
| 6254366 | Replaceable seal having a friction fit | Frank A. Walton, James E. Williams | 2001-07-03 |
| 5243897 | Magnetically actuated fluid motor | Frank A. Walton | 1993-09-14 |
| 4772386 | Filter with liquid meter | Nolan K. Rhoades, James W. Schwerdt, Robert Ahrens | 1988-09-20 |