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Title of patent family (most common patent title) |
Family members |
Filing year |
---|---|---|
method for producing a face opening using automation systems | 12 | 2009 |
shield support | 12 | 2007 |
chain coupling structure for chain drive for driving underground mining equipment such a… 🛈 | 12 | 2012 |
high pressure pump | 11 | 2010 |
method for shield controlling in mining, involves charging gap cylinder and direction cy… 🛈 | 10 | 2010 |
longwall drum combine | 9 | 2010 |
connection system | 9 | 2014 |
valve arrangement for plunger of support frame in mining industry, has check valves conn… 🛈 | 9 | 2008 |
valve | 9 | 2007 |
multi-way valve | 9 | 2009 |