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John Chao
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Quebec, CA
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Patents Grants
last 30 patents
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Patent Grant
Metallurgical furnace
Patent number
9,915,476
Issue date
Mar 13, 2018
9282-3087 QUEBEC INC.
John Chao
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Electrode seal for use in a metallurgical furnace
Patent number
9,752,830
Issue date
Sep 5, 2017
9282-3087 QUEBEC INC.
John Chao
F27 - FURNACES KILNS OVENS RETORTS
Patents Applications
last 30 patents
Information
Patent Application
ELECTRODE SEAL FOR USE IN A METALLURGICAL FURNACE
Publication number
20190285346
Publication date
Sep 19, 2019
9282-3087 Quebec Inc. (dba TMC Canada)
John CHAO
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
ELECTRODE SEAL FOR USE IN A METALLURGICAL FURNACE
Publication number
20180031324
Publication date
Feb 1, 2018
9282-3087 Québec (dba TMC Canada)
John CHAO
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Application
METALLURGICAL FURNACE
Publication number
20170030646
Publication date
Feb 2, 2017
9282-3087 Quebec Inc. (dba TMC Canada)
John CHAO
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Application
Metallurgical Furnace
Publication number
20150176907
Publication date
Jun 25, 2015
9282-3087 Quebec (dba TMC Canada)
John Chao
F27 - FURNACES KILNS OVENS RETORTS