Wai Y. C. Chan

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Santa Cruz, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for conductivity measurement including probe c...
- Patent number 6,529,841
- Issue date Mar 4, 2003
- Johnson Diversey, Inc.
- Andrew J. Cocking
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Apparatus and method for conductivity measurement including probe c...
- Patent number 6,223,129
- Issue date Apr 24, 2001
- DiverseyLever, Inc.
- Wai Yin Cedric Chan
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Ratio feed detergent controller and method with automatic feed rate...
- Patent number 5,500,050
- Issue date Mar 19, 1996
- Diversey Corporation
- Wai Y. C. Chan
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Multiple protocol multiple pump liquid chemical dispenser
- Patent number 5,494,061
- Issue date Feb 27, 1996
- Diversey Corporation
- Wai Y. C. Chan
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Multiple protocol multiple pump liquid chemical dispenser
- Patent number 5,453,131
- Issue date Sep 26, 1995
- Diversey Corporation
- Wai Y. C. Chan
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

Information Patent Application
Automatically configurable chemical dispensing system for cleaning...
- Publication number 20070044820
- Publication date Mar 1, 2007
- JohnsonDiversey, Inc.
- Wai Yin Cedric Chan
- B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...