Robert Hon-Sing Wong

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Federal Way, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Geothermal rail cooling and heating system
- Patent number 8,813,514
- Issue date Aug 26, 2014
- Robert Hon-Sing Wong
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
Geothermal Rail Cooling and Heating System
- Publication number 20140033755
- Publication date Feb 6, 2014
- Robert Hon-Sing Wong
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES