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Charles W. Johnson
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Wytheville, VA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Electrical apparatus for the generation, transmission, distribution...
Patent number
10,256,008
Issue date
Apr 9, 2019
ABB Schweiz AG
Charles Johnson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Grounding switch
Patent number
9,190,230
Issue date
Nov 17, 2015
ABB Technology AG
Charles W. Johnson
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Transformer having a core frame with interlocking members
Patent number
8,970,338
Issue date
Mar 3, 2015
ABB Technology AG
Charles W. Johnson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Dry-type network transformer
Patent number
8,884,732
Issue date
Nov 11, 2014
ABB Technology AG
Charles W. Johnson
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Grant
Dry-type transformer
Patent number
8,310,330
Issue date
Nov 13, 2012
ABB Technology AG
Charles W. Johnson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Disc wound transformer with improved cooling
Patent number
8,111,123
Issue date
Feb 7, 2012
ABB Technology AG
Jong-Yun Lim
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Dry type pole-mounted transformer
Patent number
7,834,736
Issue date
Nov 16, 2010
ABB Technology AG
Charles W. Johnson
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
ELECTRICAL APPARATUS FOR THE GENERATION, TRANSMISSION, DISTRIBUTION...
Publication number
20170069407
Publication date
Mar 9, 2017
ABB Schweiz AG
Charles Johnson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Radial Drop Winding For Open-Wound Medium Voltage Dry Type Transfor...
Publication number
20140361861
Publication date
Dec 11, 2014
Robert C. Ballard
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
TRANSFORMER HAVING A CORE FRAME WITH INTERLOCKING MEMBERS
Publication number
20130307659
Publication date
Nov 21, 2013
Charles W. Johnson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Fast Transient Mitigator Circuit Integrated Within A Vacuum Cast Tr...
Publication number
20130147589
Publication date
Jun 13, 2013
ABB TECHNOLOGY AG
Charles W. Johnson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
GROUNDING SWITCH
Publication number
20120300358
Publication date
Nov 29, 2012
Charles W. Johnson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
DRY-TYPE NETWORK TRANSFORMER
Publication number
20120212312
Publication date
Aug 23, 2012
ABB TECHNOLOGY AG
Charles W. Johnson
A62 - LIFE-SAVING FIRE-FIGHTING
Information
Patent Application
Non-Linear Transformer with Improved Construction and Method of Man...
Publication number
20120139678
Publication date
Jun 7, 2012
ABB TECHNOLOGY AG
Samuel S. Outten
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
DRY-TYPE TRANSFORMER
Publication number
20110273259
Publication date
Nov 10, 2011
ABB TECHNOLOGY AG
Charles W. JOHNSON
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
MODULAR RING-SHAPED CORE
Publication number
20110273256
Publication date
Nov 10, 2011
ABB TECHNOLOGY AG
Charles W. JOHNSON
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
DISC WOUND TRANSFORMER WITH IMPROVED COOLING
Publication number
20110063062
Publication date
Mar 17, 2011
ABB TECHNOLOGY AG
Jong-Yun Lim
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Dry-type encapsulated transformer coils
Publication number
20070190332
Publication date
Aug 16, 2007
ABB Research Ltd.
Stephane Schaal
H01 - BASIC ELECTRIC ELEMENTS