Inventor · disambiguated record
Johannes Maria Schäfer
Also filed as: SCHAEFER JOHANNES · SCHÄFER JOHANNES · SCHÄFER JOHANNES MARIA
9 granted patents·37 citations·filing 1988–2020
81Inventor score
Files withVOLKSWAGEN AG6AIRBUS HELICOPTERS TECHNIK GMBH1MESSER GRIESHEIM GMBH1ZAHNRADFABRIK FRIEDRICHSHAFEN1
Top patents by PatentIndex Score
9 records- 0187US12024247B2Method for determining a gear rack force of a steer-by-wire steering system, steer-by-wire steering system and vehicleVOLKSWAGEN AG·Filed 2019·Granted Jul 2, 2024·7 cites·20 claims
- 0283US11597437B2Method for operating a steering systemVOLKSWAGEN AG·Filed 2020·Granted Mar 7, 2023·3 cites·19 claims
- 0369US4780881AProcess for the electrical excitation of a laser gasMESSER GRIESHEIM GMBH·Filed 1988·Granted Oct 25, 1988·27 cites·33 claims
- 0448US11299194B2Steer-by-wire system and method for operating a steer-by wire systemVOLKSWAGEN AG·Filed 2018·Granted Apr 12, 2022·0 cites·18 claims
- 0545US11953072B2Method for damping torsional vibrations in a drive train, and drive trainAIRBUS HELICOPTERS TECHNIK GMBH·Filed 2019·Granted Apr 9, 2024·0 cites·17 claims
- 0644US10506149B2Endoscope device for an automatic examinationZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2017·Granted Dec 10, 2019·0 cites·11 claims
- 0741US11247725B2Steering controller and method for ascertaining an actuating signal for a power electronics unit of a steering apparatus of a motor vehicleVOLKSWAGEN AG·Filed 2018·Granted Feb 15, 2022·0 cites·3 claims
- 0841US10836422B2Method for operating an electrical power steering system of a motor vehicle and an electric power steering system for a motor vehicleVOLKSWAGEN AG·Filed 2017·Granted Nov 17, 2020·0 cites·17 claims
- 0930US10913492B2Steer-by-wire steering and steering angle adjustment method for steer-by-wire steeringVOLKSWAGEN AG·Filed 2018·Granted Feb 9, 2021·0 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →