Shei-Kai Chang

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Darien, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Pressure pulsation damping valve
- Patent number 6,439,266
- Issue date Aug 27, 2002
- American Air Liquide, Inc.
- Mindi Xu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
METHODS AND APPARATUS FOR CHEMICAL-MECHANICAL POLISHING UTILIZING L...
- Publication number 20100144245
- Publication date Jun 10, 2010
- Shei-Kai CHANG
- B24 - GRINDING POLISHING
Information Patent Application
Systems and methods for transferring and delivering a liquid chemic...
- Publication number 20030185690
- Publication date Oct 2, 2003
- Mindi Xu
- B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...