Assignee
HYDRO PLAN ENG LTD
IL·23 granted patents·1,345 citations·filing 1975–2000
Top patents by PatentIndex Score
23 records- 0199US4210287ADrip irrigation systemHYDRO PLAN ENG LTD·Filed 1978·Granted Jul 1, 1980·136 cites·14 claims
- 0298US6206305B1Irrigation emitter unitHYDRO PLAN ENG LTD·Filed 2000·Granted Mar 27, 2001·90 cites·28 claims
- 0398US6027048AIrrigation emitter unitHYDRO PLAN ENG LTD·Filed 1998·Granted Feb 22, 2000·136 cites·32 claims
- 0497US5022940AProcess of making a drip irrigation conduitHYDRO PLAN ENG LTD·Filed 1989·Granted Jun 11, 1991·124 cites·3 claims
- 0594US5324371AProcess for producing a drip irrigation conduitHYDRO PLAN ENG LTD·Filed 1993·Granted Jun 28, 1994·91 cites·3 claims
- 0694US4718608ADrip level irrigation emitterHYDRO PLAN ENG LTD·Filed 1986·Granted Jan 12, 1988·63 cites·8 claims
- 0793US5207386AFlow emitter units moulds for use in the manufacture thereofHYDRO PLAN ENG LTD·Filed 1991·Granted May 4, 1993·69 cites·24 claims
- 0893US4573640AIrrigation emitter unitHYDRO PLAN ENG LTD·Filed 1982·Granted Mar 4, 1986·67 cites·10 claims
- 0992US5279462AFluid flow control unitHYDRO PLAN ENG LTD·Filed 1991·Granted Jan 18, 1994·82 cites·4 claims
- 1091US4384680AFluid flow regulator unitHYDRO PLAN ENG LTD·Filed 1980·Granted May 24, 1983·56 cites·5 claims
- 1191US4366926AIrrigation emitter unitHYDRO PLAN ENG LTD·Filed 1980·Granted Jan 4, 1983·53 cites·8 claims
- 1291US4215822ADrip level irrigationHYDRO PLAN ENG LTD·Filed 1978·Granted Aug 5, 1980·49 cites·19 claims
- 1391US4156651ASelf-cleaning filtration deviceHYDRO PLAN ENG LTD·Filed 1978·Granted May 29, 1979·57 cites·11 claims
- 1490US4307841ADrip irrigation systemHYDRO PLAN ENG LTD·Filed 1979·Granted Dec 29, 1981·77 cites·17 claims
- 1586US4413786AEmitter unitHYDRO PLAN ENG LTD·Filed 1980·Granted Nov 8, 1983·41 cites·6 claims
- 1682US4060200ADrip level irrigationHYDRO PLAN ENG LTD·Filed 1975·Granted Nov 29, 1977·34 cites·8 claims
- 1781US5122044AApparatus for making a drip irrigation conduitHYDRO PLAN ENG LTD·Filed 1990·Granted Jun 16, 1992·41 cites·7 claims
- 1869USRE35857EIrrigation systemsHYDRO PLAN ENG LTD·Filed 1996·Granted Jul 21, 1998·34 cites·1 claims
- 1950US5294212AIrrigation systemsHYDRO PLAN ENG LTD·Filed 1992·Granted Mar 15, 1994·18 cites·12 claims
- 2049USD355020SMulti-outlet drip irrigation unitHYDRO PLAN ENG LTD·Filed 1992·Granted Jan 31, 1995·6 cites·1 claims
- 2143US4427174AIrrigation system flushing valveHYDRO PLAN ENG LTD·Filed 1981·Granted Jan 24, 1984·7 cites·9 claims
- 2242US6000634AIrrigation sprinklerHYDRO PLAN ENG LTD·Filed 1998·Granted Dec 14, 1999·12 cites·12 claims
- 2336USD356143SDouble multi-outlet drip irrigation unitHYDRO PLAN ENG LTD·Filed 1992·Granted Mar 7, 1995·2 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →