Assignee
S4 ENERGY B V
NL·5 granted patents·1 pending application·2 citations·filing 2009–2017
Top patents by PatentIndex Score
6 records- 0167US10907701B2Flywheel systemS4 ENERGY B V·Filed 2015·Granted Feb 2, 2021·2 cites·12 claims
- 0247US10119524B2Inertial energy accumulating deviceS4 ENERGY B V·Filed 2014·Granted Nov 6, 2018·0 cites·11 claims
- 0345US2011206517A1Transmission device for a machine for producing electricity from a variable speed motive power source, unit for producing electricity and wind turbine both so equipped, and method of setting a transmission ratioS4 ENERGY B V·Filed 2009·Application pending·0 cites
- 0443US10514082B2Flywheel systemS4 ENERGY B V·Filed 2017·Granted Dec 24, 2019·0 cites·15 claims
- 0539US9695804B2Device for reducing the load on a supporting structure, in particular an inertial energy accumulating deviceS4 ENERGY B V·Filed 2013·Granted Jul 4, 2017·0 cites·15 claims
- 0628US10944266B2System and method to suppress grid frequency deviationsS4 ENERGY B V·Filed 2017·Granted Mar 9, 2021·0 cites·23 claims
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