Inventor · disambiguated record
Steffen Graef
Also filed as: GRAEF STEFFEN
7 granted patents·32 citations·filing 1981–2019
79Inventor score
Top patents by PatentIndex Score
7 records- 0172US9834429B2Device for the contamination-free filling of a tank from a canisterBAYER CROPSCIENCE AG·Filed 2013·Granted Dec 5, 2017·7 cites·17 claims
- 0267US10480700B2Nozzle arrangement for flowable substancesAGROTOP GMBH·Filed 2016·Granted Nov 19, 2019·1 cites·18 claims
- 0360US10961108B2Device for filling tanks with intermediate containerAGROTOP GMBH·Filed 2017·Granted Mar 30, 2021·1 cites·20 claims
- 0454US4491023AMeans for checking and/or measuring the actual amount of sprayed plant protective substancesGRAEF STEFFEN·Filed 1981·Granted Jan 1, 1985·17 cites·11 claims
- 0549US11533900B2Apparatus for dispensing flowable media and a method for operating an apparatus for dispensing flowable mediaAGROTOP GMBH·Filed 2019·Granted Dec 27, 2022·0 cites·15 claims
- 0645US11592134B2Apparatus for spreading fluids and in particular fertilizers, pesticides and similarAGROTOP GMBH·Filed 2018·Granted Feb 28, 2023·0 cites·19 claims
- 0728US5037032AFlat spray nozzleAGROTOP GMBH·Filed 1990·Granted Aug 6, 1991·6 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →