Inventor · disambiguated record
Chengke Liu
Also filed as: LIU CHENGKE
7 granted patents·1 pending application·5 citations·filing 2022–2024
73Inventor score
Files withGM GLOBAL TECH OPERATIONS LLC8
Top patents by PatentIndex Score
8 records- 0191US11913401B1Engine emission control systems for deceleration fuel cutoff events and cold startsGM GLOBAL TECH OPERATIONS LLC·Filed 2023·Granted Feb 27, 2024·2 cites·20 claims
- 0286US11788455B1Systems and methods for recirculation of engine exhaust gas within an exhaust system having a buffer tankGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Oct 17, 2023·1 cites·16 claims
- 0385US11725601B1Systems and methods for recirculation of engine exhaust gas within an exhaust systemGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Aug 15, 2023·1 cites·20 claims
- 0484US12247504B1Systems and methods for catalyst health diagnosing and fuel system control improvementGM GLOBAL TECH OPERATIONS LLC·Filed 2023·Granted Mar 11, 2025·1 cites·18 claims
- 0569US12392300B1Vehicle with gasoline particulate filter soot regeneration strategy with criteria emission reduction for low NOX emissionsGM GLOBAL TECH OPERATIONS LLC·Filed 2024·Granted Aug 19, 2025·0 cites·20 claims
- 0659US11519317B1Engine systems with exhaust air injection after three-way catalytic converters for non stoichiometric rich operationGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Dec 6, 2022·0 cites·20 claims
- 0744US2025137413A1Apparatus and method for controlling intake air temperatureGM GLOBAL TECH OPERATIONS LLC·Filed 2023·Application pending·0 cites
- 0842US11629625B1Systems and methods of engine exhaust air injection before and after catalytic convertersGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Apr 18, 2023·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →