Wei-Chun Chang

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Taipei Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Radiator having a fan in variable rotation speed
- Patent number 6,970,643
- Issue date Nov 29, 2005
- BenQ Corporation
- Wei-Chun Chang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Radiator having a fan in variable rotation speed
- Publication number 20050109491
- Publication date May 26, 2005
- Wei-Chun Chang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES