Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5785785 | Method of making constant flow irrigation tape | Daniel W. C. Delmer, Robert Delmer, John W. Erickson, Ray Charles Emmons | 1998-07-28 |
| 5695127 | Constant-flow irrigation tape and method of making | Daniel W. C. Delmer, Robert Delmer, John W. Erickson, Ray Charles Emmons | 1997-12-09 |
| 5620143 | Constant-flow irrigation tape and method of making | Daniel W. C. Delmer, Robert Delmer, John W. Erickson, Ray Charles Emmons | 1997-04-15 |
| 5192027 | Drip irrigation devices and plastic films with copper powder incorporated | Daniel W. C. Delmer, Robert Delmer | 1993-03-09 |
| 4548360 | Multichamber drip irrigation hose | Daniel W. C. Delmer | 1985-10-22 |
| 4235380 | Multiple chamber drip irrigation hose | — | 1980-11-25 |
| 4196853 | Multiple chamber drip irrigation hose | — | 1980-04-08 |