Inventor · disambiguated record
Heiko Freter
Also filed as: FRETER HEIKO
14 granted patents·4 pending applications·35 citations·filing 2009–2024
88Inventor score
Files withA KAYSER AUTOMOTIVE SYSTEMS GMBH9KAYSER AUTOMOTIVE SYSTEMS GMBH4FRETER HEIKO2AMMERMANN STEPHAN1AdFiS products GmbH1
Top patents by PatentIndex Score
18 records- 0191US12368208B2Protective device for a housingA KAYSER AUTOMOTIVE SYSTEMS GMBH·Filed 2022·Granted Jul 22, 2025·1 cites·11 claims
- 0285US9739403B2Coupling deviceA KAYSER AUTOMOTIVE SYSTEMS GMBH·Filed 2016·Granted Aug 22, 2017·7 cites·8 claims
- 0379US8440005B2Active carbon filter for an internal combustion engineLANG TOBIAS·Filed 2010·Granted May 14, 2013·6 cites·16 claims
- 0477US10697557B2Tank ventilation valve, tank ventilation system and method for keeping open an electromagnetically activated valveA KAYSER AUTOMOTIVE SYSTEMS GMBH·Filed 2019·Granted Jun 30, 2020·2 cites·14 claims
- 0576US7878552B2Insert couplingKAYSER AUTOMOTIVE SYSTEMS GMBH·Filed 2009·Granted Feb 1, 2011·10 cites·20 claims
- 0674US9121533B2Crankcase ventilation for an internal combustion engine, tank ventilation conduit and connection system thereforKAYSER AUTOMOTIVE SYSTEMS GMBH·Filed 2014·Granted Sep 1, 2015·3 cites·20 claims
- 0772US2024363957A1Protection device for batteryA KAYSER AUTOMOTIVE SYSTEMS GMBH·Filed 2024·Application pending·0 cites
- 0860US8240717B2Insertion couplingFRETER HEIKO·Filed 2010·Granted Aug 14, 2012·2 cites·20 claims
- 0957US2025207671A1Valve for controlling a fluid, valve stack and valve systemA KAYSER AUTOMOTIVE SYSTEMS GMBH·Filed 2024·Application pending·0 cites
- 1053US10443773B2Push-in connectorA KAYSER AUTOMOTIVE SYSTEMS GMBH·Filed 2017·Granted Oct 15, 2019·1 cites·19 claims
- 1151US11491863B2Filter elementAdFiS products GmbH·Filed 2020·Granted Nov 8, 2022·0 cites·19 claims
- 1251US11130090B2Fuel vapor buffering apparatusA KAYSER AUTOMOTIVE SYSTEMS GMBH·Filed 2019·Granted Sep 28, 2021·0 cites·12 claims
- 1348US8598496B2Method for testing the operation of a heating element used for an activated carbon filterFRETER HEIKO·Filed 2009·Granted Dec 3, 2013·0 cites·7 claims
- 1447US8157904B2Activated carbon filter unit for a tank systemAMMERMANN STEPHAN·Filed 2009·Granted Apr 17, 2012·3 cites·18 claims
- 1542US11913564B2Valve, valve stack, and component with valve and/or valve stackA KAYSER AUTOMOTIVE SYSTEMS GMBH·Filed 2022·Granted Feb 27, 2024·0 cites·13 claims
- 1641US2013043180A1Filtration DeviceKAYSER AUTOMOTIVE SYSTEMS GMBH·Filed 2011·Application pending·0 cites
- 1736US10533692B2Heatable media lineA KAYSER AUTOMOTIVE SYSTEMS GMBH·Filed 2017·Granted Jan 14, 2020·0 cites·23 claims
- 1836US2013037475A1Filtration DeviceKAYSER AUTOMOTIVE SYSTEMS GMBH·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →