Yuan-Fu Chang

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Feng-Yuan City, TW

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Patents Applicationslast 30 patents

Information Patent Application
Head for a precision ceramic gas cooker
- Publication number 20080054102
- Publication date Mar 6, 2008
- Yuan Fu Chang
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
Safety and power saving device for a kitchen ventilator
- Publication number 20060089729
- Publication date Apr 27, 2006
- Yuan-Fu Chang
- G05 - CONTROLLING REGULATING
Information Patent Application
Automatic cleaning device for kitchen ventilator
- Publication number 20040182382
- Publication date Sep 23, 2004
- Yuan-Fu Chang
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Inflatable umbrella
- Publication number 20040099296
- Publication date May 27, 2004
- Yuan-Fu Chang
- A45 - HAND OR TRAVELLING ARTICLES
Information Patent Application
Inflatable umbrella
- Publication number 20040045593
- Publication date Mar 11, 2004
- Yuan-Fu Chang
- A45 - HAND OR TRAVELLING ARTICLES
Information Patent Application
Dry-type dehydrating and sanitizing device
- Publication number 20030124024
- Publication date Jul 3, 2003
- Yuan-Fu Chang
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Sanitizing device for nursing bottles and teats
- Publication number 20020090333
- Publication date Jul 11, 2002
- Yuan-Fu Chang
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE