Nathan T. Sigman

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Bastian, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of providing arc-resistant dry type transformer enclosure
- Patent number 9,214,271
- Issue date Dec 15, 2015
- ABB Inc.
- Robert C. Ballard
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Arc-resistant dry type transformer enclosure having arc fault dampe...
- Patent number 8,492,662
- Issue date Jul 23, 2013
- ABB Inc.
- Robert C. Ballard
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Arc-resistant dry type transformer enclosure having arc channels
- Patent number 8,456,838
- Issue date Jun 4, 2013
- ABB Inc.
- Robert C. Ballard
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of providing arc-resistant dry type transformer enclosure
- Patent number 8,375,566
- Issue date Feb 19, 2013
- ABB Inc.
- Robert C. Ballard
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF PROVIDING ARC-RESISTANT DRY TYPE TRANSFORMER ENCLOSURE
- Publication number 20130019464
- Publication date Jan 24, 2013
- Robert C. Ballard
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ARC-RESISTANT DRY TYPE TRANSFORMER ENCLOSURE HAVING ARC CHANNELS
- Publication number 20120218067
- Publication date Aug 30, 2012
- ABB INC.
- Robert C. Ballard
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ARC-RESISTANT DRY TYPE TRANSFORMER ENCLOSURE HAVING ARC FAULT DAMPE...
- Publication number 20120217053
- Publication date Aug 30, 2012
- ABB INC.
- Robert C. Ballard
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF PROVIDING ARC-RESISTANT DRY TYPE TRANSFORMER ENCLOSURE
- Publication number 20120216393
- Publication date Aug 30, 2012
- ABB INC.
- Robert C. Ballard
- H01 - BASIC ELECTRIC ELEMENTS