Inventor · disambiguated record
Philip J. Hopkinson
Also filed as: HOPKINSON PHILIP J · HOPKINSON PHILIP JOHN · HOPKINSON PHILLIP J
12 granted patents·1 pending application·206 citations·filing 1983–2002
92Inventor score
Top patents by PatentIndex Score
13 records- 0187US6157282ATransformer cooling method and apparatus thereforSQUARE D CO·Filed 1998·Granted Dec 5, 2000·52 cites·30 claims
- 0284US6806803B2Transformer windingSQUARE D CO·Filed 2002·Granted Oct 19, 2004·28 cites·37 claims
- 0370US6147580AStrip wound induction coil with improved heat transfer and short circuit withstandabilitySQUARE D CO·Filed 1998·Granted Nov 14, 2000·27 cites·10 claims
- 0470US4521956AMethod for making a transformer having improved space factorGEN ELECTRIC·Filed 1983·Granted Jun 11, 1985·18 cites·15 claims
- 0568US4521954AMethod for making a dry type transformerGEN ELECTRIC·Filed 1983·Granted Jun 11, 1985·19 cites·15 claims
- 0664US6100783AEnergy efficient hybrid coreSQUARE D CO·Filed 1999·Granted Aug 8, 2000·20 cites·16 claims
- 0756US6278355B1Transformer windingSQUARE D CO·Filed 1999·Granted Aug 21, 2001·15 cites·19 claims
- 0846US6633168B2Method and apparatus for detecting partial discharge in a voltage transformerSQUARE D CO·Filed 2001·Granted Oct 14, 2003·8 cites·27 claims
- 0941US4987511AGapped arresterCOOPER IND INC·Filed 1989·Granted Jan 22, 1991·9 cites·22 claims
- 1036US6177848B1High frequency snubber for transformersSQUARE D CO·Filed 1998·Granted Jan 23, 2001·5 cites·24 claims
- 1133US5225630ATransformer assembly having cooling fins and method of providing sameCOOPER POWER SYST·Filed 1991·Granted Jul 6, 1993·4 cites·16 claims
- 1232US2002196120A1Non-energy limiting class 2 transformer with positive temperature protectionFiled 2002·Application pending·0 cites
- 1330US6188298B1Winding transient suppression techniqueSQUARE D CO·Filed 1998·Granted Feb 13, 2001·1 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →