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Glenn A. Mayfield
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West Lafayette, IN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Transformers
Patent number
7,439,843
Issue date
Oct 21, 2008
Radian Research, Inc.
Glenn A. Mayfield
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Reduction of capacitance effects in potential transformers
Patent number
6,963,262
Issue date
Nov 8, 2005
Radian Research, Inc.
Glenn A. Mayfield
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Transformers
Patent number
6,903,642
Issue date
Jun 7, 2005
Radian Research, Inc.
Glenn A. Mayfield
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Wide ratio autotransformer-type current ranging
Patent number
6,879,232
Issue date
Apr 12, 2005
Radian Research, Inc.
Glenn A. Mayfield
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Methods and apparatus for analog-to-digital conversion
Patent number
6,833,803
Issue date
Dec 21, 2004
Radian Research, Inc.
Glenn A. Mayfield
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Compensated transformers
Patent number
5,276,394
Issue date
Jan 4, 1994
Radian Research, Inc.
Glenn A. Mayfield
G01 - MEASURING TESTING
Information
Patent Grant
Amplifier circuit with increased voltage handling capacity
Patent number
5,264,803
Issue date
Nov 23, 1993
Radian Research, Inc.
Glenn A. Mayfield
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Programmable demand register with two way communication through an...
Patent number
4,542,469
Issue date
Sep 17, 1985
Duncan Electric Company, Inc.
Robert E. Brandyberry
G01 - MEASURING TESTING
Information
Patent Grant
Power transducer
Patent number
4,514,686
Issue date
Apr 30, 1985
Duncan Electric Company, Inc.
Glenn A. Mayfield
G01 - MEASURING TESTING
Information
Patent Grant
Average responding RMS indicating type transducer
Patent number
4,417,198
Issue date
Nov 22, 1983
Duncan Electric Company, Inc.
Glenn A. Mayfield
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
Transformers
Publication number
20050219028
Publication date
Oct 6, 2005
Glenn A. Mayfield
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Reduction of capacitance effects in potential transformers
Publication number
20040004524
Publication date
Jan 8, 2004
Glenn A Mayfield
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Methods and apparatus for analog-to-digital conversion
Publication number
20030174083
Publication date
Sep 18, 2003
Glenn A Mayfield
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Wide ratio autotransformer-type current ranging
Publication number
20030151482
Publication date
Aug 14, 2003
Glenn A Mayfield
G05 - CONTROLLING REGULATING
Information
Patent Application
Transformers
Publication number
20030137382
Publication date
Jul 24, 2003
Glenn A. Mayfield
H01 - BASIC ELECTRIC ELEMENTS