Zefu Chen

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Greenacres, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Automatic dispenser apparatus
- Patent number 6,347,724
- Issue date Feb 19, 2002
- UltraClenz Engineering Group
- Zefu Chen
- B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...

Patents Applicationslast 30 patents

Information Patent Application
Adapter for touch-free operation of gooseneck faucet
- Publication number 20050199841
- Publication date Sep 15, 2005
- James O'Maley
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
Cover latch for dispenser apparatus
- Publication number 20020067044
- Publication date Jun 6, 2002
- Zefu Chen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES