Yongzhang Yu

Follow

Person

Xi'an, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Multi-stage compressor
- Patent number 7,393,186
- Issue date Jul 1, 2008
- LG Electronics Inc.
- Xiufeng Gao
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Yoke mechanism for compressor
- Patent number 7,287,458
- Issue date Oct 30, 2007
- LG Electronics Inc.
- Xiufeng Gao
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Refrigeration system and compressor thereof
- Publication number 20060123838
- Publication date Jun 15, 2006
- Yongzhang Yu
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
Multi-stage compressor
- Publication number 20050201868
- Publication date Sep 15, 2005
- Xiufeng Gao
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Yoke mechanism for compressor
- Publication number 20050175480
- Publication date Aug 11, 2005
- Xiufeng Gao
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES