Method and device for diagnosing a leakage of a crankcase ventilation line of a crankcase ventilation device for an internal combustion engine
US-12442321-B2 · Oct 14, 2025 · US
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Haft Gerhard patents
Haft Gerhard is listed as an inventor on 35 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Haft Gerhard |
| Total patents | 35 |
| First publication | Oct 15, 2015 |
| Latest publication | Oct 14, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Detecting Manipulation of a Sensor Value of an Exhaust Gas Sensor of an Internal Combustion Engine for a Vehicle
US-2025216295-A1 · Jul 3, 2025 · US
Apparatus and method for lambda control of spark-ignition engines, and motor vehicle
US-2025163864-A1 · May 22, 2025 · US
Monitoring the ventilation of a crankcase of an internal combustion engine
US-12264634-B2 · Apr 1, 2025 · US
Monitoring the Ventilation of a Crankcase of an Internal Combustion Engine
US-2025043743-A1 · Feb 6, 2025 · US
Determining the size of a leak in a fuel tank system
US-12188425-B2 · Jan 7, 2025 · US
Exhaust gas aftertreatment device
US-11986811-B2 · May 21, 2024 · US
Method and control apparatus for operating a tank ventilation system of an internal combustion engine
US-11898507-B2 · Feb 13, 2024 · US
Method for operating an exhaust gas cleaning system arranged in the exhaust line of an internal combustion engine, and exhaust gas cleaning system
US-11814997-B2 · Nov 14, 2023 · US
Method And Control Apparatus For Operating A Tank Ventilation System Of An Internal Combustion Engine
US-2023265805-A1 · Aug 24, 2023 · US
Recent patents
Latest publications not already listed above.
Method for ascertaining the nitrogen oxide fraction and/or ammonia fraction in the exhaust gas of an internal combustion engine
US-11725602-B2 · Aug 15, 2023 · US
Method for determining the oxygen load of a catalytic converter of an internal combustion engine, and exhaust system of an internal combustion engine
US-11578636-B2 · Feb 14, 2023 · US
Method for Ascertaining the Nitrogen Oxide Fraction and/or Ammonia Fraction in the Exhaust Gas of an Internal Combustion Engine
US-2022316416-A1 · Oct 6, 2022 · US
Determining the Size of a Leak in a Fuel Tank System
US-2022307439-A1 · Sep 29, 2022 · US
Apparatus and method for ascertaining a heating temperature of a heating element for an electrically heatable catalytic converter
US-11415036-B2 · Aug 16, 2022 · US
Method For Operating An Exhaust Gas Cleaning System Arranged In The Exhaust Line Of An Internal Combustion Engine, And Exhaust Gas Cleaning System
US-2022251989-A1 · Aug 11, 2022 · US
Method for exhaust gas aftertreatment, and exhaust gas aftertreatment system
US-11377994-B2 · Jul 5, 2022 · US
Method for Determining the Oxygen Load of a Catalytic Converter of an Internal Combustion Engine, and Exhaust System of an Internal Combustion Engine
US-2022178295-A1 · Jun 9, 2022 · US
Method And Device For Diagnosing A Leakage Of A Crankcase Ventilation Line Of A Crankcase Ventilation Device For An Internal Combustion Engine
US-2022170396-A1 · Jun 2, 2022 · US
Exhaust gas aftertreatment device
US-2022105503-A1 · Apr 7, 2022 · US
Apparatus and Method for Ascertaining a Heating Temperature of a Heating Element for an Electrically Heatable Catalytic Converter
US-2021372314-A1 · Dec 2, 2021 · US
Method For Exhaust Gas Aftertreatment, And Exhaust Gas Aftertreatment System
US-2021239025-A1 · Aug 5, 2021 · US
Device for operating a tank ventilation system of an internal combustion engine
US-10941731-B2 · Mar 9, 2021 · US
Device for operating a tank ventilation system of an internal combustion engine
US-2020309069-A1 · Oct 1, 2020 · US
Method for determining the composition of the fuel used and operating an internal combustion engine
US-10584650-B2 · Mar 10, 2020 · US
Method for determining the composition of the fuel used to operate an internal combustion engine
US-10570831-B2 · Feb 25, 2020 · US
Method and a control device for operating a tank venting system of an internal combustion engine
US-10508619-B2 · Dec 17, 2019 · US
Method And A Control Device For Operating A Tank Venting System Of An Internal Combustion Engine
US-2018372030-A1 · Dec 27, 2018 · US
Method For Determining The Composition Of The Fuel Used To Operate An Internal Combustion Engine
US-2018372008-A1 · Dec 27, 2018 · US
Method For Determining The Composition Of The Fuel Used And Operating An Internal Combustion Engine
US-2018372009-A1 · Dec 27, 2018 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Vitesco Tech Gmbh | 24 |
| Continental Automotive Gmbh | 11 |
| Audi Ag | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| Y02T10/12 | 14 |
| Y02T10/40 | 10 |
| F01N3/101 | 9 |
| F02D41/22 | 9 |
| F01N2560/025 | 8 |