Patent assignee · DE · COMPANY

MANN+HUMMEL GmbH

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1,006Patents
940Active
1,006Granted
64Portfolio score

Filing activity: Nov 29, 2001 → Mar 14, 2024 · 231 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US7004986B2 Filter in a filter housing Performing Operations; Transporting 146 Expired
US6953124B2 Filter element with end face inlets and discharge outlets Performing Operations; Transporting 141 Expired
US8152876B2 Filter element having V-seal Performing Operations; Transporting 81 Active
US8147576B2 Filter element having serrated seal Performing Operations; Transporting 64 Active
US7658777B2 Filter element and filter system for the intake air of an internal combustion engine Performing Operations; Transporting 58 Active
US8142533B2 Filter element and filter system Performing Operations; Transporting 54 Active
USD880286S1 Air filter package General 48 Active
US9446339B2 Air filter element with retaining geometry Performing Operations; Transporting 45 Active
US9463404B2 Air filter element with retaining geometry Performing Operations; Transporting 45 Active
US7744758B2 Liquid filter Performing Operations; Transporting 44 Expired
US7117973B2 Noise suppressor apparatus for a gas duct Emerging Cross-Sectional Technologies 42 Expired
US7445653B2 Centrifugal oil separator Mechanical Engineering; Lighting; Heating 42 Active
US7159723B2 Cyclone separator Mechanical Engineering; Lighting; Heating 41 Expired
US8287612B2 Filter element and filter system Performing Operations; Transporting 41 Active
US7033410B2 Centrifugal separator Emerging Cross-Sectional Technologies 41 Expired
US7115156B2 Air filter system Performing Operations; Transporting 40 Expired
US7390407B2 Liquid filter Performing Operations; Transporting 39 Expired
US7481863B2 Air filter Performing Operations; Transporting 38 Active
US9579596B2 Air filter element having a specific retaining geometry Performing Operations; Transporting 36 Active
US7938963B2 Fuel filter system Emerging Cross-Sectional Technologies 34 Active
US8968945B2 Humidifier for a fuel cell Emerging Cross-Sectional Technologies 33 Active
US7407533B2 Active filter element for end face incident flow Performing Operations; Transporting 33 Active
USD876249S1 Air quality monitor General 33 Active
US7578863B2 Multi-stage apparatus for separating liquid droplets from gases Mechanical Engineering; Lighting; Heating 32 Active
US7481926B2 Filter device Performing Operations; Transporting 31 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.