Hydroplan Engineering Ltd.
Records under this name other than patents Hydroplan Engineering Ltd. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Hydroplan Engineering Ltd.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,206,305 | Irrigation emitter unit Term ended Term ended Feb 10, 2020 · From the USPTO record | Term ended | Term ended Feb 10, 2020 | From the USPTO record |
| US 6,027,048 | Irrigation emitter unit Term ended Term ended Oct 8, 2018 · From the USPTO record | Term ended | Term ended Oct 8, 2018 | From the USPTO record |
| US 4,060,200 | Drip level irrigation Term ended Term ended no later than Nov 29, 1997 · Low confidence | Term ended | Term ended no later than Nov 29, 1997 | Low confidence |
| US 4,156,651 | Self-cleaning filtration device Term ended Term ended no later than May 29, 1999 · Low confidence | Term ended | Term ended no later than May 29, 1999 | Low confidence |
| US 4,210,287 | Drip irrigation system Term ended Term ended no later than Jul 1, 2000 · Low confidence | Term ended | Term ended no later than Jul 1, 2000 | Low confidence |
| US 4,215,822 | Drip level irrigation Term ended Term ended no later than Aug 5, 2000 · Low confidence | Term ended | Term ended no later than Aug 5, 2000 | Low confidence |
| US 4,307,841 | Drip irrigation system Term ended Term ended no later than Dec 29, 2001 · Low confidence | Term ended | Term ended no later than Dec 29, 2001 | Low confidence |
| US 4,366,926 | Irrigation emitter unit Term ended Term ended no later than Jan 4, 2003 · Low confidence | Term ended | Term ended no later than Jan 4, 2003 | Low confidence |
| US 4,384,680 | Fluid flow regulator unit Term ended Term ended no later than May 24, 2003 · Low confidence | Term ended | Term ended no later than May 24, 2003 | Low confidence |
| US 4,413,786 | Emitter unit Term ended Term ended no later than Nov 8, 2003 · Low confidence | Term ended | Term ended no later than Nov 8, 2003 | Low confidence |