The report contains ten-year analysis with the following sections
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Title of patent family (most common patent title) |
Family members |
Filing year |
---|---|---|
elevator charging device and charging method thereof | 2 | 2010 |
elevator door lock electric switch pre-diagnosis system and method | 2 | 2014 |
mechanical brake release device of machine-room-less lift brake | 2 | 2013 |
overheat protection method and device for power device of elevator frequency converter | 2 | 2014 |
elevator intelligent brake control method and device | 2 | 2013 |
unloading device for guide rail of high speed elevator | 2 | 2012 |
device and method for reducing gap between hoistway door sill and lift car door sill | 2 | 2010 |
elevator safety stop trigger device | 2 | 2010 |
double-driving-wheel type landing door lock | 2 | 2014 |
anti-clamping device for skirt plate of escalator | 2 | 2010 |