Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4351503 | Stabilized projectiles | — | 1982-09-28 |
| 4314582 | Combined pressure-regulator and manual shut-off valve | — | 1982-02-09 |
| 4312374 | Differential-pressure valve | — | 1982-01-26 |
| 4295963 | Backwashable fluid filter | — | 1981-10-20 |
| 4278540 | Back washing fluid filters | — | 1981-07-14 |
| 4271018 | Backwashable fluid filters | — | 1981-06-02 |
| 4209032 | Air-relief valves | — | 1980-06-24 |
| 4207181 | Self-cleaning filters | — | 1980-06-10 |
| 4181051 | Method of making fluid-issuing openings through the walls of flexible plastic members, particularly dripper emitters | — | 1980-01-01 |