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 |
---|---|---|
dredging loader for water sump | 2 | 2009 |
air compressing and water supplying rescue device with person positioning function | 2 | 2015 |
mine-car-gap-following waste rock distribution device under rock roadway continuous wast… 🛈 | 2 | 2013 |
pop-out proofing device for column valve of hydraulic single column | 2 | 2012 |
common gangue removal method and system for dual rock roadways of coal mine | 2 | 2015 |
hydraulic valve group protecting device for hydraulic bracket | 2 | 2011 |
brake shoe monitoring and adjusting device for tp1 type elevator disc-shaped brake | 2 | 2015 |
device and method for controlling quality of screening slack coal | 2 | 2012 |
auxiliary supporting device for reversed loader tail | 2 | 2014 |
u-shaped mesh folding device | 2 | 2012 |