Assignee
Purem GmbH
DE86 patents
Top patents by PatentIndex Score
US11578632B2Feb 14, 2023
Exhaust gas heater
Purem GmbH2 citations69
US11486285B2Nov 1, 2022
Exhaust gas heater
Purem GmbH2 citations69
US11486286B2Nov 1, 2022
Connection unit for an exhaust gas heater
Purem GmbH4 citations69
US11441461B2Sep 13, 2022
Mixer device
Purem GmbH2 citations68
US11566557B2Jan 31, 2023
Exhaust system for an internal combustion engine and process for manufacturing an exhaust system
Purem GmbH3 citations65
US12492653B2Dec 9, 2025
Muffler and method for making a muffler
Purem GmbH1 citations63
US11572817B2Feb 7, 2023
Exhaust gas heating arrangement
Purem GmbH0 citations62
US12492657B2Dec 9, 2025
Exhaust gas system for an internal combustion engine
Purem GmbH0 citations60
US11585256B2Feb 21, 2023
Exhaust gas/reactant mixing arrangement
Purem GmbH1 citations60
US11838995B2Dec 5, 2023
Exhaust gas heater and method for making the same
Purem GmbH0 citations59
US12312986B2May 27, 2025
Electrical supply line connection unit suitable for harsh high heat environmental conditions
Purem GmbH1 citations58
US11852064B2Dec 26, 2023
Exhaust gas heater
Purem GmbH1 citations58
US11466629B2Oct 11, 2022
Exhaust-gas flap device
Purem GmbH1 citations57
US12486791B2Dec 2, 2025
Exhaust-gas heater
Purem GmbH0 citations56
US11702974B2Jul 18, 2023
Exhaust gas/reactant mixing device
Purem GmbH1 citations56
US11795847B2Oct 24, 2023
Exhaust muffler
Purem GmbH0 citations53
US12215614B2Feb 4, 2025
Exhaust gas system for a hydrogen combustion engine
Purem GmbH0 citations52
US12097752B2Sep 24, 2024
Heating system for a vehicle and process for heating a vehicle
Purem GmbH0 citations52
US12060818B2Aug 13, 2024
Muffler and method for making a muffler
Purem GmbH0 citations52
US12049839B2Jul 30, 2024
Exhaust gas heating unit
Purem GmbH0 citations52
US11781459B2Oct 10, 2023
Heating unit for an exhaust-gas system of an internal combustion engine
Purem GmbH0 citations52
US11698012B2Jul 11, 2023
Exhaust gas heating element
Purem GmbH0 citations52
US11846219B2Dec 19, 2023
Exhaust gas heater
Purem GmbH0 citations50
US11519312B2Dec 6, 2022
Exhaust gas heater for an exhaust gas system of a combustion engine
Purem GmbH0 citations50
US12520384B2Jan 6, 2026
Exhaust-gas heater
Purem GmbH0 citations49
US12345190B2Jul 1, 2025
Support unit for supporting a heating conductor of an exhaust gas heater on a carrier structure
Purem GmbH0 citations49
US12116917B2Oct 15, 2024
Connection unit
Purem GmbH0 citations49
US12074416B2Aug 27, 2024
Connecting arrangement
Purem GmbH0 citations49
US12069777B2Aug 20, 2024
Terminal pin
Purem GmbH0 citations49
US11913368B2Feb 27, 2024
Exhaust gas treatment arrangement
Purem GmbH0 citations49
US11879372B2Jan 23, 2024
Connection unit
Purem GmbH0 citations49
US11702968B2Jul 18, 2023
Component for an exhaust system of an internal combustion engine
Purem GmbH0 citations49
US11680508B2Jun 20, 2023
Exhaust-gas treatment module
Purem GmbH0 citations49
US11536179B2Dec 27, 2022
Exhaust gas treatment assembly unit
Purem GmbH0 citations49
US12469863B2Nov 11, 2025
Control flap assembly for a gas flow in a fuel cell system
Purem GmbH0 citations48
US12312987B2May 27, 2025
Exhaust gas treatment arrangement
Purem GmbH0 citations48
US12313165B2May 27, 2025
Butterfly valve assembly, in particular for a gas flow in a fuel cell system
Purem GmbH0 citations48
US11591945B2Feb 28, 2023
Exhaust gas treatment arrangement for an exhaust gas system of an internal combustion engine
Purem GmbH0 citations48
US11492942B2Nov 8, 2022
Exhaust gas heater
Purem GmbH0 citations48
US11125138B2Sep 21, 2021
Pipe, especially exhaust gas-guiding pipe
Purem GmbH0 citations48
US11702972B2Jul 18, 2023
Exhaust gas/reactant mixing assembly
Purem GmbH0 citations47
US11603803B2Mar 14, 2023
Coupling arrangement
Purem GmbH0 citations47
US11578671B2Feb 14, 2023
Exhaust-gas flap device
Purem GmbH0 citations47
US11572842B2Feb 7, 2023
Coupling arrangement
Purem GmbH0 citations47
US12404796B2Sep 2, 2025
Exhaust-gas treatment arrangement
Purem GmbH0 citations46
US12241396B2Mar 4, 2025
Exhaust-gas treatment arrangement
Purem GmbH0 citations46
US11484847B2Nov 1, 2022
Mixer assembly unit
Purem GmbH0 citations46
US12376194B2Jul 29, 2025
Exhaust gas heater
Purem GmbH0 citations45
US12345194B2Jul 1, 2025
Mixing arrangement for an exhaust-gas system of an internal combustion engine
Purem GmbH0 citations45
US11891936B2Feb 6, 2024
Exhaust gas treatment arrangement for an exhaust gas system of an internal combustion engine
Purem GmbH0 citations45
Showing the top 50 of 86 patents by PatentIndex Score.