Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5111995 | Drip irrigation tube | Charles A. McMillen | 1992-05-12 |
| 4726520 | Continuous tube emitter | Richard D. Brown, Edward J. Pitchford, Mathias Plotkin, Hans D. Christen | 1988-02-23 |