Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4442977 | Airless electric sprayer | John L. Beiswenger, Dhananjay V. Chaphalkar | 1984-04-17 |
| 4369921 | Hose-end sprayer | John L. Beiswenger, Howard R. Moon, Dhananjay V. Chaphalkar | 1983-01-25 |
| 4349157 | Hose-end sprayer | John L. Beiswenger | 1982-09-14 |
| 4333493 | Cartridge feeder for soluble fertilizer | John L. Beiswenger, Howard R. Moon, Dhananjay V. Chaphalkar | 1982-06-08 |
| 4220284 | Oscillating water sprinkler | John L. Beiswenger, Dhananjay V. Chaphalkar | 1980-09-02 |