Der-Fan Shen

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Shan-Chung City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Flow regulator for water pump
- Patent number 6,814,099
- Issue date Nov 9, 2004
- Der-Fan Shen
- G05 - CONTROLLING REGULATING
Information Patent Grant
Flow regulator for water pump
- Patent number 6,631,731
- Issue date Oct 14, 2003
- Der-Fan Shen
- G05 - CONTROLLING REGULATING
Information Patent Grant
Flow regulator for water pump
- Patent number 6,564,826
- Issue date May 20, 2003
- Der-Fan Shen
- G05 - CONTROLLING REGULATING
Information Patent Grant
Flow regulator for a water pump
- Patent number 6,461,104
- Issue date Oct 8, 2002
- Der-Fan Shen
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Flow regulator for water pump
- Patent number 6,309,185
- Issue date Oct 30, 2001
- Der-Fan Shen
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Flow regulator for water pump
- Patent number 6,273,126
- Issue date Aug 14, 2001
- Der-Fan Shen
- G05 - CONTROLLING REGULATING
Information Patent Grant
Flow regulator for water pump
- Patent number 6,192,925
- Issue date Feb 27, 2001
- Der-Fan Shen
- G05 - CONTROLLING REGULATING
Information Patent Grant
Regulated air suction valve
- Patent number 6,176,257
- Issue date Jan 23, 2001
- Der-Fan Shen
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
Flow control switch
- Publication number 20050279413
- Publication date Dec 22, 2005
- Der-Fan Shen
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Flow regulator for a water pump
- Publication number 20030072655
- Publication date Apr 17, 2003
- Der-Fan Shen
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Flow regulator for water pump
- Publication number 20030019525
- Publication date Jan 30, 2003
- Der-Fan Shen
- G05 - CONTROLLING REGULATING
Information Patent Application
Flow regulator for water pump
- Publication number 20030019524
- Publication date Jan 30, 2003
- Der-Fan Shen
- G05 - CONTROLLING REGULATING
Information Patent Application
Flow regulator for water pump
- Publication number 20030019526
- Publication date Jan 30, 2003
- Der-Fan Shen
- G05 - CONTROLLING REGULATING