Thomas G. Trefz

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Wichita, KS, US

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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
Information Patent Grant
Battery life extender for portable lighting
- Patent number 9,909,726
- Issue date Mar 6, 2018
- The Coleman Company, Inc.
- Matthew G. Law
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Battery Life Extender for Portable Lighting
- Publication number 20160377242
- Publication date Dec 29, 2016
- Matthew G Law
- F21 - LIGHTING
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