Inventor · disambiguated record
David L. Groen
Also filed as: GROEN DAVID · GROEN DAVID L
9 granted patents·1 pending application·200 citations·filing 1990–2021
89Inventor score
Files withGROEN BROTHERS AVIATION INC2GROEN DAVID L2GROEN BROTEHRS AVIATION INC1GROEN HENRY J1SEGO TOOL INC1
Top patents by PatentIndex Score
10 records- 0189US8960594B2Use of auxiliary rudders for yaw control at low speedGROEN DAVID L·Filed 2011·Granted Feb 24, 2015·17 cites·20 claims
- 0284US5301900AAutogyro aircraftGROEN HENRY J·Filed 1992·Granted Apr 12, 1994·72 cites·31 claims
- 0383US9611037B1Use of auxiliary rudders for yaw control at low speedGROEN BROTEHRS AVIATION INC·Filed 2015·Granted Apr 4, 2017·7 cites·19 claims
- 0482US5544844AAutogyro aircraftFiled 1994·Granted Aug 13, 1996·62 cites·16 claims
- 0573US9604722B1Mission-adaptive rotor bladeGROEN BROTHERS AVIATION INC·Filed 2015·Granted Mar 28, 2017·3 cites·9 claims
- 0672US11117666B2Precision delivery vehicleSKYWORKS GLOBAL INC·Filed 2018·Granted Sep 14, 2021·4 cites·10 claims
- 0769US8944365B2Mission-adaptive rotor bladeGROEN DAVID L·Filed 2011·Granted Feb 3, 2015·4 cites·16 claims
- 0857US11827357B2Precision delivery vehicle including folding wings and deployable, unpowered rotorSKYWORKS AERONAUTICS CORP·Filed 2021·Granted Nov 28, 2023·0 cites·7 claims
- 0955US5304036AAutogyro aircraftSEGO TOOL INC·Filed 1990·Granted Apr 19, 1994·31 cites·16 claims
- 1035US2017066539A1Rotor driven auxiliary power apparatus and methodGROEN BROTHERS AVIATION INC·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →