Yuhua Zhang

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Xidian Town, CN

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Patents Grantslast 30 patents

Information Patent Grant
Battery life extender for portable lighting
- Patent number 10,184,620
- Issue date Jan 22, 2019
- The Coleman Company, Inc.
- Matthew G. Law
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
BATTERY LIFE EXTENDER FOR PORTABLE LIGHTING
- Publication number 20160245466
- Publication date Aug 25, 2016
- The Coleman Company, Inc.
- Matthew G. Law
- F21 - LIGHTING