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Darrell Robinson
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Highland Township, MI, US
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Patents Grants
last 30 patents
Information
Patent Grant
Watthour meter socket lock adapter
Patent number
8,002,578
Issue date
Aug 23, 2011
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Electrical service socket adapter housing
Patent number
D642536
Issue date
Aug 2, 2011
Ekstrom Industries, Inc.
Darrell Robinson
D13 - Equipment for production, distribution, or transformation of energy
Information
Patent Grant
Lock ring for a watthour meter application
Patent number
7,650,767
Issue date
Jan 26, 2010
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Modular watthour meter socket and test switch
Patent number
7,479,029
Issue date
Jan 20, 2009
Meter Devices Company, Inc.
Norman D. Cook
G01 - MEASURING TESTING
Information
Patent Grant
Electrical power service apparatus with external circuit breaker ro...
Patent number
7,458,846
Issue date
Dec 2, 2008
Ekstrom Industries, Inc.
Karl Loehr
G01 - MEASURING TESTING
Information
Patent Grant
Secure electrical service entrance power access
Patent number
7,315,442
Issue date
Jan 1, 2008
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
K-series watthour meter socket adapter
Patent number
7,232,335
Issue date
Jun 19, 2007
Ekstrom Industries, Inc.
Allen V. Preuhs
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Modular watthour meter socket and test switch
Patent number
7,189,109
Issue date
Mar 13, 2007
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Terminal block jumper
Patent number
7,153,157
Issue date
Dec 26, 2006
Ekstrom Industries, Inc.
Darrell Robinson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Overall watthour metter enclosure safety replacement window
Patent number
6,975,504
Issue date
Dec 13, 2005
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Watthour meter socket adapter
Patent number
6,846,199
Issue date
Jan 25, 2005
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Removably attachable cover handles for electric power watthour meter
Patent number
6,823,563
Issue date
Nov 30, 2004
Ekstrom Industries, Inc.
Darrell Robinson
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Meter socket jaw tester apparatus and test method
Patent number
6,766,698
Issue date
Jul 27, 2004
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Watthour meter socket adapter
Patent number
6,752,652
Issue date
Jun 22, 2004
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Electrical enclosure optical communication port seal
Patent number
6,739,886
Issue date
May 25, 2004
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Electric power watthour meter with cover handles
Patent number
6,679,723
Issue date
Jan 20, 2004
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Jaw blades and jaw blade couplers for watthour meter socket adapter
Patent number
6,663,422
Issue date
Dec 16, 2003
Ekstrom Industries, Inc.
Darrell Robinson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Disconnect watthour meter socket adapter
Patent number
6,663,405
Issue date
Dec 16, 2003
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Electrical service apparatus with light transmission guide
Patent number
6,644,989
Issue date
Nov 11, 2003
Ekstrom Industries, Inc.
Darrell Robinson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Watthour meter socket adapter with auxiliary component mounts
Patent number
6,592,399
Issue date
Jul 15, 2003
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Watthour meter socket adapter with auxiliary component mounts
Patent number
6,589,072
Issue date
Jul 8, 2003
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Electrical service apparatus with surge suppression protection
Patent number
6,549,388
Issue date
Apr 15, 2003
Ekstrom Industries, Inc.
Darrell Robinson
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Disconnect watthour meter socket adapter
Patent number
6,520,798
Issue date
Feb 18, 2003
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Meter socket adapter with connections to electrical component in an...
Patent number
6,488,535
Issue date
Dec 3, 2002
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Electrical service apparatus safety shield with wire guides
Patent number
6,478,589
Issue date
Nov 12, 2002
Ekstrom Industries, Inc.
Darrell Robinson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Meter socket adapter with connections to electrical component in an...
Patent number
6,475,028
Issue date
Nov 5, 2002
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Watthour meter socket adapter with auxiliary component mounts
Patent number
6,443,761
Issue date
Sep 3, 2002
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Watthour meter socket adapter with auxiliary component mounts
Patent number
6,428,350
Issue date
Aug 6, 2002
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Watthour meter socket adapter with auxiliary component mounts
Patent number
6,409,537
Issue date
Jun 25, 2002
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Watthour meter socket adapter with safety shield
Patent number
6,325,666
Issue date
Dec 4, 2001
Ekstrom Industries, Inc.
Darrell Robinson
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
U-LOCK
Publication number
20110179833
Publication date
Jul 28, 2011
Ekstrom Industries, Inc.
Darrell Robinson
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
WATTHOUR METER SOCKET LOCK ADAPTER
Publication number
20100267277
Publication date
Oct 21, 2010
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Application
LOCK RING FOR A WATTHOUR METER APPLICATION
Publication number
20080266761
Publication date
Oct 30, 2008
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Application
ELECTRICAL POWER SERVICE APPARATUS WITH EXTERNAL CIRCUIT BREAKER RO...
Publication number
20080180885
Publication date
Jul 31, 2008
Ekstrom Industries, Inc.
Karl Loehr
G01 - MEASURING TESTING
Information
Patent Application
K-series watthour meter socket adapter
Publication number
20060258204
Publication date
Nov 16, 2006
Ekstrom Industries, Inc.
Allen V. Preuhs
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Terminal block jumper
Publication number
20060160413
Publication date
Jul 20, 2006
Ekstrom Industries, Inc.
Darrell Robinson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Secure electrical service entrance power access
Publication number
20060082955
Publication date
Apr 20, 2006
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Application
Modular watthour meter socket and test switch
Publication number
20050239325
Publication date
Oct 27, 2005
Meter Devices Company, Inc.
Norman D. Cook
G01 - MEASURING TESTING
Information
Patent Application
Modular watthour meter socket and test switch
Publication number
20050122094
Publication date
Jun 9, 2005
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Application
Removably attachable cover handles for electric power watthour meter
Publication number
20040040119
Publication date
Mar 4, 2004
Darrell Robinson
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Application
Overall watthour metter enclosure safety replacement window
Publication number
20030184956
Publication date
Oct 2, 2003
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Application
Electrical service apparatus with light transmission guide
Publication number
20020197896
Publication date
Dec 26, 2002
Darrell Robinson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Watthour meter socket adapter with auxiliary component mounts
Publication number
20020123265
Publication date
Sep 5, 2002
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Application
Electrical service apparatus safety shield with wire guides
Publication number
20020102873
Publication date
Aug 1, 2002
Darrell Robinson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Electrical service apparatus with surge suppression protection
Publication number
20020075622
Publication date
Jun 20, 2002
Darrell Robinson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Watthour meter socket adapter with auxiliary component mounts
Publication number
20020037664
Publication date
Mar 28, 2002
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Application
Watthour meter socket adapter with auxiliary component mounts
Publication number
20020034893
Publication date
Mar 21, 2002
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Application
Watthour meter socket adapter with auxiliary component mounts
Publication number
20010000768
Publication date
May 3, 2001
Darrell Robinson
G01 - MEASURING TESTING