Assignee
Purem GmbH
DE·86 granted patents·34 pending applications·19 citations·filing 2017–2025
Top patents by PatentIndex Score
120 records- 0192US11486286B2Connection unit for an exhaust gas heaterPurem GmbH·Filed 2021·Granted Nov 1, 2022·4 cites·15 claims
- 0288US11578632B2Exhaust gas heaterPurem GmbH·Filed 2021·Granted Feb 14, 2023·2 cites·14 claims
- 0388US11566557B2Exhaust system for an internal combustion engine and process for manufacturing an exhaust systemPurem GmbH·Filed 2020·Granted Jan 31, 2023·3 cites·17 claims
- 0487US11585256B2Exhaust gas/reactant mixing arrangementPurem GmbH·Filed 2022·Granted Feb 21, 2023·1 cites·13 claims
- 0587US11486285B2Exhaust gas heaterPurem GmbH·Filed 2020·Granted Nov 1, 2022·2 cites·22 claims
- 0685US12492653B2Muffler and method for making a mufflerPurem GmbH·Filed 2022·Granted Dec 9, 2025·1 cites·12 claims
- 0783US11852064B2Exhaust gas heaterPurem GmbH·Filed 2022·Granted Dec 26, 2023·1 cites·16 claims
- 0880US11702974B2Exhaust gas/reactant mixing devicePurem GmbH·Filed 2022·Granted Jul 18, 2023·1 cites·16 claims
- 0980US2026066315A1Fuel cell exhaust gas installation, fuel cell system, and method for reducing the water content in fuel cell exhaust gasPurem GmbH·Filed 2025·Application pending·0 cites
- 1079US11441461B2Mixer devicePurem GmbH·Filed 2020·Granted Sep 13, 2022·2 cites·17 claims
- 1178US2026018631A1Fuel-cell exhaust system, fuel cell system and method for reducing the hydrogen content in fuel-cell exhaust gasPurem GmbH·Filed 2025·Application pending·0 cites
- 1277US11466629B2Exhaust-gas flap devicePurem GmbH·Filed 2021·Granted Oct 11, 2022·1 cites·19 claims
- 1377US2026011757A1Fuel-cell exhaust system, fuel cell system and method for reducing the water content in fuel-cell exhaust gasPurem GmbH·Filed 2025·Application pending·0 cites
- 1476US2025046840A1Vehicle with a fuel cell system and method for operating a fuel cell system in a vehiclePurem GmbH·Filed 2024·Application pending·0 cites
- 1575US12312986B2Electrical supply line connection unit suitable for harsh high heat environmental conditionsPurem GmbH·Filed 2021·Granted May 27, 2025·1 cites·17 claims
- 1675US2024356052A1Fuel cell exhaust gas system, and method for operating a fuel cell systemPurem GmbH·Filed 2024·Application pending·0 cites
- 1775US2024405237A1Fuel cell system and method of operating a fuel cell systemPurem GmbH·Filed 2024·Application pending·0 cites
- 1875US2025125443A1Battery systemPurem GmbH·Filed 2024·Application pending·0 cites
- 1973US2025357515A1Sound damper, in particular for a fuel-cell systemPurem GmbH·Filed 2025·Application pending·0 cites
- 2072US2024055628A1Fuel Cell Exhaust Gas SystemPurem GmbH·Filed 2023·Application pending·0 cites
- 2171US2025316727A1Fuel cell system and method for operating a fuel cell systemPurem GmbH·Filed 2025·Application pending·0 cites
- 2270US12492657B2Exhaust gas system for an internal combustion enginePurem GmbH·Filed 2024·Granted Dec 9, 2025·0 cites·12 claims
- 2370US2025360450A1Apparatus and method for extracting co2 from airPurem GmbH·Filed 2025·Application pending·0 cites
- 2470US2024266563A1Fuel cell exhaust-gas systemPurem GmbH·Filed 2024·Application pending·0 cites
- 2569US2026092549A1Mixing section for an exhaust system of an internal combustion enginePurem GmbH·Filed 2025·Application pending·0 cites
- 2669US2026009348A1Muffler for an exhaust system and method for making a mufflerPurem GmbH·Filed 2025·Application pending·0 cites
- 2767US12069777B2Terminal pinPurem GmbH·Filed 2022·Granted Aug 20, 2024·0 cites·16 claims
- 2867US2023378494A1Fuel-cell exhaust systemPurem GmbH·Filed 2023·Application pending·0 cites
- 2967US2024405238A1Fuel cell system and method of operating a fuel cell systemPurem GmbH·Filed 2024·Application pending·0 cites
- 3067US2023378501A1Fuel-cell exhaust arrangementPurem GmbH·Filed 2023·Application pending·0 cites
- 3166US2023378500A1Fuel Cell Exhaust Gas Arrangement for a Fuel Cell SystemPurem GmbH·Filed 2023·Application pending·0 cites
- 3266US2025360453A1Apparatus and method for extracting co2 from airPurem GmbH·Filed 2025·Application pending·0 cites
- 3365US12215614B2Exhaust gas system for a hydrogen combustion enginePurem GmbH·Filed 2023·Granted Feb 4, 2025·0 cites·17 claims
- 3465US2025253359A1Fuel cell exhaust gas systemPurem GmbH·Filed 2025·Application pending·0 cites
- 3563US12345190B2Support unit for supporting a heating conductor of an exhaust gas heater on a carrier structurePurem GmbH·Filed 2023·Granted Jul 1, 2025·0 cites·14 claims
- 3663US11572817B2Exhaust gas heating arrangementPurem GmbH·Filed 2021·Granted Feb 7, 2023·0 cites·19 claims
- 3762US12313165B2Butterfly valve assembly, in particular for a gas flow in a fuel cell systemPurem GmbH·Filed 2023·Granted May 27, 2025·0 cites·13 claims
- 3862US11838995B2Exhaust gas heater and method for making the samePurem GmbH·Filed 2022·Granted Dec 5, 2023·0 cites·20 claims
- 3962US2024072279A1Hydrogen Storage AssemblyPurem GmbH·Filed 2023·Application pending·0 cites
- 4061US12312987B2Exhaust gas treatment arrangementPurem GmbH·Filed 2023·Granted May 27, 2025·0 cites·19 claims
- 4161US11913368B2Exhaust gas treatment arrangementPurem GmbH·Filed 2023·Granted Feb 27, 2024·0 cites·10 claims
- 4261US2025250925A1Connection unitPurem GmbH·Filed 2025·Application pending·0 cites
- 4360US12486791B2Exhaust-gas heaterPurem GmbH·Filed 2022·Granted Dec 2, 2025·0 cites·17 claims
- 4458US12180875B2Gas introduction assembly for introducing gas, in particular air, into an exhaust gas system of an internal combustion enginePurem GmbH·Filed 2023·Granted Dec 31, 2024·0 cites·15 claims
- 4558US2025192199A1Fuel cell exhaust-gas systemPurem GmbH·Filed 2024·Application pending·0 cites
- 4656US12467392B2Muffler, exhaust system including a muffler, and method of making a muffler for an exhaust systemPurem GmbH·Filed 2023·Granted Nov 11, 2025·0 cites·14 claims
- 4756US12404791B2Heating conductor for an exhaust gas heaterPurem GmbH·Filed 2024·Granted Sep 2, 2025·0 cites·22 claims
- 4856US12404796B2Exhaust-gas treatment arrangementPurem GmbH·Filed 2023·Granted Sep 2, 2025·0 cites·17 claims
- 4956US12116917B2Connection unitPurem GmbH·Filed 2023·Granted Oct 15, 2024·0 cites·19 claims
- 5056US2025122822A1Holder for an exhaust system of an internal combustion engine and method of making samePurem GmbH·Filed 2024·Application pending·0 cites
Showing the top 50 of 120 patent records by PatentIndex Score.
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