Zheng Ma

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Bloomfield Hills, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Piston assembly for an internal combustion engine of a motor vehicle
- Patent number 11,313,466
- Issue date Apr 26, 2022
- GM Global Technology Operations LLC
- Balakrishna Chinta
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Two-piece compression piston ring of an internal combustion engine
- Patent number 8,555,850
- Issue date Oct 15, 2013
- GM Global Technology Operations LLC
- Zheng Ma
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
PISTON ASSEMBLY FOR AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE
- Publication number 20210062916
- Publication date Mar 4, 2021
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Balakrishna Chinta
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
PISTON RING AND MANUFACTURING METHOD
- Publication number 20180023703
- Publication date Jan 25, 2018
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Ronald J. PETRUS
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
TWO-PIECE COMPRESSION PISTON RING OF AN INTERNAL COMBUSTION ENGINE
- Publication number 20130032119
- Publication date Feb 7, 2013
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Zheng Ma
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS