Inventor · disambiguated record
Paul Douglas Freen
Also filed as: FREEN PAUL · FREEN PAUL D · FREEN PAUL DOUGLAS
6 granted patents·1 pending application·324 citations·filing 1994–2014
86Inventor score
Top patents by PatentIndex Score
7 records- 0194US6883507B2System and method for generating and sustaining a corona electric discharge for igniting a combustible gaseous mixtureETATECH INC·Filed 2003·Granted Apr 26, 2005·149 cites·43 claims
- 0292US5622053ATurbocharged natural gas engine control systemCOOPER CAMERON CORP·Filed 1994·Granted Apr 22, 1997·61 cites·5 claims
- 0387US5791145ANatural gas engine control systemCOOPER CAMERON CORP·Filed 1996·Granted Aug 11, 1998·47 cites·26 claims
- 0483US8746218B2Igniting combustible mixturesFREEN PAUL DOUGLAS·Filed 2009·Granted Jun 10, 2014·13 cites·24 claims
- 0578US5555867ASwirl flow precombustion chamberCOOPER CAMERON CORP·Filed 1994·Granted Sep 17, 1996·54 cites·18 claims
- 0655US9605646B2Igniting combustible mixturesBORGWARNER INC·Filed 2014·Granted Mar 28, 2017·0 cites·26 claims
- 0739US2011185895A1Filter apparatus and method of monitoring filter apparatusFREEN PAUL·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →