Cheng-Chang Chen

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Taipei Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Atomizer
- Patent number D413663
- Issue date Sep 7, 1999
- Bobson Hygiene International, Inc.
- Cheng-Chang Chen
- D23 - Environmental heating and cooling
Information Patent Grant
Cleanser dispenser
- Patent number D406977
- Issue date Mar 23, 1999
- Bobson Hygiene International, Inc.
- Cheng-Chang Chen
- D06 - Furnishings
Information Patent Grant
Atomizer
- Patent number D406330
- Issue date Mar 2, 1999
- Bobson Hygiene International, Inc.
- Cheng-Chang Chen
- D23 - Environmental heating and cooling