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 |
---|---|---|
multiple bellow-type filter with increased efficiency | 83 | 2008 |
filter insert and filter device | 33 | 2009 |
filter for filtering fluids | 33 | 2009 |
air filter, filter element and filter housing of an air filter | 26 | 2013 |
filter element and filter system | 25 | 2007 |
filter and filter cartridge | 21 | 2014 |
filter unit for filtering gaseous fluids | 21 | 2008 |
filter element and filter system with a filter element | 16 | 2013 |
charge air duct for an internal combustion engine | 16 | 2009 |
centrifugal separator with protected bearing | 16 | 2010 |