Assignee
ZHENG QINGHUA
DE·4 granted patents·1 pending application·20 citations·filing 2007–2008
Top patents by PatentIndex Score
5 records- 0178US8430039B2Magnetic levitation vehicle and method for lifting and/or lowering the vehicleZHENG QINGHUA·Filed 2008·Granted Apr 30, 2013·8 cites·12 claims
- 0263US8118266B2Apparatus for generating position signals for rail-bound vehicles, in particular magnetic levitation vehiclesZHENG QINGHUA·Filed 2007·Granted Feb 21, 2012·11 cites·6 claims
- 0345US8166884B2Switch assembly for magnetic levitation railwaysZHENG QINGHUA·Filed 2007·Granted May 1, 2012·0 cites·9 claims
- 0442US8234981B2Magnet arrangement for magnetic levitation vehiclesZHENG QINGHUA·Filed 2007·Granted Aug 7, 2012·1 cites·12 claims
- 0535US2010101656A1Method and device for preventing fast changes of the internal pressure in an enclosed roomZHENG QINGHUA·Filed 2008·Application pending·0 cites
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