Combined voltage and current transformers

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Patents Grantslast 30 patents

Information Patent Grant
VA metering in delta-wired electrical service
- Patent number 10,830,801
- Issue date Nov 10, 2020
- Landis+Gyr Innovations, Inc.
- John T. Voisine
- G01 - MEASURING TESTING
Information Patent Grant
Energy harvesting device
- Patent number 9,753,469
- Issue date Sep 5, 2017
- Electric Power Research Institute, Inc.
- Norman D. McCollough
- G05 - CONTROLLING REGULATING
Information Patent Grant
Electrostatic shield for a transformer
- Patent number 9,472,337
- Issue date Oct 18, 2016
- ABB Schweiz AG
- Steven A. Shaw
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Line-powered instrument transformer
- Patent number 8,749,226
- Issue date Jun 10, 2014
- ABB Technology AG
- Jashbhai S. Patel
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus of sensing and indicating an open current tran...
- Patent number 8,659,441
- Issue date Feb 25, 2014
- Eaton Corporation
- Christopher D. Wells
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrical energy-transforming equipment
- Patent number 5,596,467
- Issue date Jan 21, 1997
- Makoto Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2244386
- Patent number 2,244,386
- Issue date Jun 3, 1941
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
1807797
- Patent number 1,807,797
- Issue date Jun 2, 1931
- H01 - BASIC ELECTRIC ELEMENTS