Inventor · disambiguated record
David V. Hefford
Also filed as: HEFFORD DAVID V
3 granted patents·36 citations·filing 1997–2000
71Inventor score
Files withPHILIPS CORP3
Top patents by PatentIndex Score
3 records- 0173US6377750B1Heating apparatus comprising a plastics body and a planar heating elementPHILIPS CORP·Filed 2000·Granted Apr 23, 2002·15 cites·6 claims
- 0243US5794520AWater heating vesselPHILIPS CORP·Filed 1997·Granted Aug 18, 1998·18 cites·9 claims
- 0332US6184509B1Heating apparatus and heating element assembly methodPHILIPS CORP·Filed 1999·Granted Feb 6, 2001·3 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →