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Christopher D. Cogan
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Clarkston, MI, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method of manufacturing metal castings
Patent number
10,898,948
Issue date
Jan 26, 2021
GM Global Technology Operations LLC
Qigui Wang
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Degassing and microstructure refinement of shape casting aluminum a...
Patent number
9,981,310
Issue date
May 29, 2018
GM Global Technology Operations LLC
Qigui Wang
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method to improve riser feedability for semi-permanent mold casting...
Patent number
9,808,858
Issue date
Nov 7, 2017
GM Global Technology Operations LLC
Qigui Wang
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Methods for sand core gas evacuation and related systems and apparatus
Patent number
9,403,209
Issue date
Aug 2, 2016
GM Global Technology Operations LLC
Christopher D. Cogan
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Pour ladle for molten metal
Patent number
8,418,745
Issue date
Apr 16, 2013
GM Global Technology Operations LLC
Christopher D. Cogan
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Pour ladle for molten metal
Patent number
8,327,915
Issue date
Dec 11, 2012
GM Global Technology Operations LLC
Christopher D. Cogan
B22 - CASTING POWDER METALLURGY
Patents Applications
last 30 patents
Information
Patent Application
METHOD OF MANUFACTURING METAL CASTINGS
Publication number
20200316676
Publication date
Oct 8, 2020
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Qigui Wang
B22 - CASTING POWDER METALLURGY
Information
Patent Application
METHOD OF MANUFACTURING METAL CASTINGS
Publication number
20180016666
Publication date
Jan 18, 2018
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Christopher D. Cogan
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD TO IMPROVE RISER FEEDABILITY FOR SEMI-PERMANENT MOLD CASTING...
Publication number
20170106434
Publication date
Apr 20, 2017
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Qigui Wang
B22 - CASTING POWDER METALLURGY
Information
Patent Application
DEGASSING AND MICROSTRUCTURE REFINEMENT OF SHAPE CASTING ALUMINUM A...
Publication number
20170056971
Publication date
Mar 2, 2017
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Qigui Wang
B22 - CASTING POWDER METALLURGY
Information
Patent Application
METHODS FOR SAND CORE GAS EVACUATION AND RELATED SYSTEMS AND APPARATUS
Publication number
20140202651
Publication date
Jul 24, 2014
GM GLOBAL TECHNOLOGY OPERATIONS LLC
CHRISTOPHER D. COGAN
B22 - CASTING POWDER METALLURGY
Information
Patent Application
POUR LADLE FOR MOLTEN METAL
Publication number
20130032304
Publication date
Feb 7, 2013
GM Global Technology Operations, Inc.
Christopher D. Cogan
B22 - CASTING POWDER METALLURGY
Information
Patent Application
POUR LADLE FOR MOLTEN METAL
Publication number
20120298322
Publication date
Nov 29, 2012
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Christopher D. Cogan
B22 - CASTING POWDER METALLURGY