Hao-Jung Yeh

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Taichung, TW

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Patents Grantslast 30 patents

Information Patent Grant
Grease output device for an electrical grease gun
- Patent number 7,584,871
- Issue date Sep 8, 2009
- Techway Industrial Co., Ltd.
- San-I Huang
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Electric impact wrench with a rechargeable battery
- Patent number D525100
- Issue date Jul 18, 2006
- Techway Industrial Co., Ltd.
- San-I Huang
- D08 - Tools and hardware

Patents Applicationslast 30 patents

Information Patent Application
Grease output device for an electrical grease gun
- Publication number 20080047980
- Publication date Feb 28, 2008
- TECHWAY INDUSTRIAL CO., LTD.
- San-I Huang
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Cam-driven pump mechanism for a battery-powered grease gun
- Publication number 20050249616
- Publication date Nov 10, 2005
- San-I Huang
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...