Robert L. Hirt

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Cary, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Vacuum based diverter switch for tap changer
- Patent number 8,367,951
- Issue date Feb 5, 2013
- ABB Technology Ltd.
- Petter Nilsson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
System for optimizing power network design reliability
- Patent number 5,798,939
- Issue date Aug 25, 1998
- ABB Power T&D Company, Inc.
- J. Rafael Ochoa
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
VACUUM BASED DIVERTER SWITCH FOR TAP CHANGER
- Publication number 20110031220
- Publication date Feb 10, 2011
- ABB Technology Ltd.
- Petter Nilsson
- H01 - BASIC ELECTRIC ELEMENTS