Lei Liu

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Shelburne, VT, US

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Patents Grantslast 30 patents

Information Patent Grant
Rotating stall detection through ratiometric measure of the sub-syn...
- Patent number 10,436,059
- Issue date Oct 8, 2019
- Simmonds Precision Products, Inc.
- Lei Liu
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Speed estimation systems
- Patent number 10,379,133
- Issue date Aug 13, 2019
- Simmonds Precision Products, Inc.
- Lei Liu
- G01 - MEASURING TESTING
Information Patent Grant
Systems and methods for monitoring surge conditions
- Patent number 10,317,276
- Issue date Jun 11, 2019
- Simmonds Precision Products, Inc.
- Lei Liu
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Grant
Vibration monitoring systems
- Patent number 10,317,275
- Issue date Jun 11, 2019
- Simmonds Precision Products, Inc.
- Lei Liu
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
SPEED ESTIMATION SYSTEMS
- Publication number 20170205439
- Publication date Jul 20, 2017
- Simmonds Precision Products, Inc.
- Lei Liu
- G01 - MEASURING TESTING
Information Patent Application
VIBRATION MONITORING SYSTEMS
- Publication number 20170205275
- Publication date Jul 20, 2017
- Simmonds Precision Products, Inc.
- Lei Liu
- G01 - MEASURING TESTING
Information Patent Application
SYSTEMS AND METHODS FOR MONITORING SURGE CONDITIONS
- Publication number 20160103012
- Publication date Apr 14, 2016
- Simmonds Precision Products, Inc.
- Lei Liu
- G01 - MEASURING TESTING
Information Patent Application
ROTATING STALL DETECTION THROUGH RATIOMETRIC MEASURE OF THE SUB-SYN...
- Publication number 20150322814
- Publication date Nov 12, 2015
- Simmonds Precision Products, Inc.
- Lei Liu
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...