Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5462678 | Air blast backwash assembly for flexible filter device | — | 1995-10-31 |
| 5176826 | Purge construction for a vibrating sieve filter | — | 1993-01-05 |
| 5128032 | Vibrating sieve filter with bars | — | 1992-07-07 |
| 4970004 | Vibrating sieve filter | — | 1990-11-13 |
| 4721563 | Fluid filtering device | — | 1988-01-26 |
| 4651570 | Differential pressure monitor | — | 1987-03-24 |
| 4574047 | Filtering device | — | 1986-03-04 |
| 4497336 | Valve assembly | — | 1985-02-05 |
| 4496459 | Flexible filter device with means to position filter bag | — | 1985-01-29 |
| 4485844 | Back pressure inducer | Henry A. Vander Kaay | 1984-12-04 |
| 4434670 | Fluid flow meter | — | 1984-03-06 |
| 4419240 | Fluid filtering device | — | 1983-12-06 |
| 4399033 | Fluid filtering device | Dale P. Fosdick | 1983-08-16 |
| 4387022 | Fluid filtering device | Dale P. Fosdick | 1983-06-07 |
| 4372855 | Filter device with air bleed | Dale P. Fosdick | 1983-02-08 |
| 4299696 | Fluid filtering device | Dale P. Fosdick | 1981-11-10 |
| 4281554 | Fluid flow meter | — | 1981-08-04 |
| 4268384 | Spin-off filter head assembly | Dale P. Fosdick | 1981-05-19 |
| 4265271 | Relief valve | Dale P. Fosdick | 1981-05-05 |
| 4265761 | Fluid filtering device | Dale P. Fosdick | 1981-05-05 |
| 4215718 | Relief valve | Dale P. Fosdick | 1980-08-05 |
| 4197207 | Fluid filtering device | Dale P. Fosdick | 1980-04-08 |
| 4183812 | Fluid filtering device | Dale P. Fosdick | 1980-01-15 |