Inventor · disambiguated record
David Zeman
Also filed as: ZEMAN DAVID · ZEMAN DAVID G
15 granted patents·1 pending application·239 citations·filing 1976–2020
93Inventor score
Top patents by PatentIndex Score
16 records- 0197US5141360AIrrigation tubingZEMAN DAVID·Filed 1989·Granted Aug 25, 1992·82 cites·14 claims
- 0281US11466884B2Actuators with condition trackingHONEYWELL INT INC·Filed 2020·Granted Oct 11, 2022·1 cites·20 claims
- 0376US5224796AFlat sided irrigation tubingZEMAN DAVID·Filed 1992·Granted Jul 6, 1993·35 cites·23 claims
- 0473US10634379B2Actuators with condition trackingHONEYWELL INT INC·Filed 2017·Granted Apr 28, 2020·1 cites·34 claims
- 0573USD340626SStake for attachment to drip or related irrigation tubingZEMAN DAVID·Filed 1992·Granted Oct 26, 1993·16 cites·1 claims
- 0662USD341755SStake for attachment to drip or related irrigation tubingZEMAN DAVID·Filed 1992·Granted Nov 30, 1993·11 cites·1 claims
- 0757US5263791AIrrigation tubing with improved discharge holesZEMAN DAVID·Filed 1992·Granted Nov 23, 1993·23 cites·16 claims
- 0856US4801089ASprinkler structures having replaceable water distribution structuresZEMAN DAVID G·Filed 1987·Granted Jan 31, 1989·24 cites·10 claims
- 0954USD339508SStake for attachment to drip or related irrigation tubingZEMAN DAVID·Filed 1990·Granted Sep 21, 1993·8 cites·1 claims
- 1045US4852806ASpray structures for use in watering plantsZEMAN DAVID·Filed 1987·Granted Aug 1, 1989·14 cites·18 claims
- 1141US4688599ADistribution fittingZEMAN DAVID·Filed 1985·Granted Aug 25, 1987·10 cites·9 claims
- 1238US2017229073A1Wall module with multi-pixel passive infrared sensorHONEYWELL INT INC·Filed 2016·Application pending·0 cites
- 1337USD429997STubing reelZEMAN DAVID G·Filed 1999·Granted Aug 29, 2000·3 cites·1 claims
- 1437US5292073AIrrigation tubes with thickened wall sectionsZEMAN DAVID·Filed 1992·Granted Mar 8, 1994·6 cites·3 claims
- 1531US4134551AEmitter for drip irrigationZEMAN DAVID G·Filed 1976·Granted Jan 16, 1979·3 cites·2 claims
- 1629US5267691ASpray structures with integral stakesZEMAN DAVID·Filed 1992·Granted Dec 7, 1993·2 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →