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 |
---|---|---|
step apparatus for heavy construction equipment and tree harvester having leveling system | 14 | 2008 |
negative control type hydraulic system | 13 | 2009 |
leveling control system and method for heavy equipment | 11 | 2007 |
construction equipment having electric control lever | 10 | 2009 |
system and method for controlling engine revolutions for hybrid construction machine | 10 | 2009 |
method for controlling rotation speed | 10 | 2005 |
construction equipment cab having protective structure | 10 | 2008 |
system and method of controlling torque of plural variable displacement hydraulic pumps | 9 | 2008 |
pressure control valve | 9 | 2008 |
double check valve having floating function | 9 | 2007 |