Phillip J. Hopkinson

Person

Charlotte, NC, US

People

Patents Grantslast 30 patents

Information Patent Grant
Transformer winding
- Patent number 6,806,803
- Issue date Oct 19, 2004
- Square D Company
- Philip J. Hopkinson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for detecting partial discharge in a voltage t...
- Patent number 6,633,168
- Issue date Oct 14, 2003
- Square D Company
- Philip J. Hopkinson
- G01 - MEASURING TESTING
Information Patent Grant
Transformer winding
- Patent number 6,278,355
- Issue date Aug 21, 2001
- Square D Company
- Philip J. Hopkinson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Winding transient suppression technique
- Patent number 6,188,298
- Issue date Feb 13, 2001
- Square D Company
- Philip J. Hopkinson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High frequency snubber for transformers
- Patent number 6,177,848
- Issue date Jan 23, 2001
- Square D Company
- Philip J. Hopkinson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Transformer cooling method and apparatus therefor
- Patent number 6,157,282
- Issue date Dec 5, 2000
- Square D Company
- Philip J. Hopkinson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Strip wound induction coil with improved heat transfer and short ci...
- Patent number 6,147,580
- Issue date Nov 14, 2000
- Square D Company
- Richard Raymond Rettew
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Energy efficient hybrid core
- Patent number 6,100,783
- Issue date Aug 8, 2000
- Square D Company
- Philip J. Hopkinson
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Transformer winding
- Publication number 20040108926
- Publication date Jun 10, 2004
- SQUARE D COMPANY
- Phillip J. Hopkinson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Non-energy limiting class 2 transformer with positive temperature p...
- Publication number 20020196120
- Publication date Dec 26, 2002
- Philip J. Hopkinson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method and apparatus for detecting partial discharge in a voltage t...
- Publication number 20020140536
- Publication date Oct 3, 2002
- Philip J. Hopkinson
- G01 - MEASURING TESTING

Phillip J. Hopkinson

Person

Patents Grantslast 30 patents

Transformer winding

Method and apparatus for detecting partial discharge in a voltage t...

Transformer winding

Winding transient suppression technique

High frequency snubber for transformers

Transformer cooling method and apparatus therefor

Strip wound induction coil with improved heat transfer and short ci...

Energy efficient hybrid core

Patents Applicationslast 30 patents

Transformer winding

Non-energy limiting class 2 transformer with positive temperature p...

Method and apparatus for detecting partial discharge in a voltage t...