Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9936653 | Irrigation apparatus | William Eric Antel, Robert Sigston, Malcom Fry | 2018-04-10 |
| 8662414 | Watering device | Robert Sigston, David Bevan Creed | 2014-03-04 |
| 8480013 | Spray device | David Bevan Creed, Robert Sigston | 2013-07-09 |
| D574929 | Shut-off adaptor for a watering system | Robert Sigston, David Bevan Creed | 2008-08-12 |
| D566230 | Dripper | Robert Sigston, David Bevan Creed | 2008-04-08 |
| D407281 | Watering device support stake | William Eric Antel, Cosimo Iacopetta | 1999-03-30 |
| D404463 | Sprinkler base | William Eric Antel, Mark Simon Ledson | 1999-01-19 |
| 4749217 | Pipe fittings | Geoffrey P. Kastelein | 1988-06-07 |