Inventor · disambiguated record
Charles Stone
Also filed as: STONE CHARLES · STONE CHARLES N · STONE CHARLES NORMAN
18 granted patents·8 pending applications·602 citations·filing 1993–2013
96Inventor score
Files withBALLARD POWER SYSTEMS19STONE CHARLES2BDF IP HOLDINGS LTD1CYPRESS SEMICONDUCTOR CORP1SUNPOWER CORP1
Top patents by PatentIndex Score
26 records- 0194US6723758B2Graft polymeric membranes and ion-exchange membranes formed therefromBALLARD POWER SYSTEMS·Filed 2001·Granted Apr 20, 2004·95 cites·10 claims
- 0293US5422411ATrifluorostyrene and substituted trifluorostyrene copolymeric compositions and ion-exchange membranes formed therefromBALLARD POWER SYSTEMS·Filed 1993·Granted Jun 6, 1995·123 cites·8 claims
- 0389US6689501B2Composite ion exchange membrane for use in a fuel cellBALLARD POWER SYSTEMS·Filed 2001·Granted Feb 10, 2004·46 cites·22 claims
- 0489US6437011B2α,β, β-trifluorostyrene-based composite membranesBALLARD POWER SYSTEMS·Filed 2001·Granted Aug 20, 2002·25 cites·5 claims
- 0587US5834523ASubstituted α,β,β-trifluorostyrene-based composite membranesBALLARD POWER SYSTEMS·Filed 1996·Granted Nov 10, 1998·64 cites·20 claims
- 0681US9640676B2Methods and structures for improving the structural integrity of solar cellsSUNPOWER CORP·Filed 2013·Granted May 2, 2017·3 cites·20 claims
- 0781US5773480ATrifluorostyrene and substituted trifluorostyrene copolymeric compositions and ion-exchange membranes formed therefromBALLARD POWER SYSTEMS·Filed 1996·Granted Jun 30, 1998·40 cites·14 claims
- 0879US5985942Aα, β, β-trifluorostyrene-based composite membranesBALLARD POWER SYSTEMS·Filed 1998·Granted Nov 16, 1999·43 cites·32 claims
- 0977US6765027B2Ion-exchange materials with improved ion conductivityBALLARD POWER SYSTEMS·Filed 2002·Granted Jul 20, 2004·22 cites·46 claims
- 1071US6359019B1Graft polymeric membranes and ion-exchange membranes formed therefromBALLARD POWER SYSTEMS·Filed 1997·Granted Mar 19, 2002·40 cites·39 claims
- 1169US5602185ASubstituted trifluorostyrene compositionsBALLARD POWER SYSTEMS·Filed 1995·Granted Feb 11, 1997·28 cites·45 claims
- 1261US5498639ATrifluorostyrene and substituted trifluorostyrene copolymeric ion-exchange membranesBALLARD POWER SYSTEMS·Filed 1995·Granted Mar 12, 1996·26 cites·6 claims
- 1360US5684192ASubstituted trifluorostyrene monomeric compositionsBALLARD POWER SYSTEMS·Filed 1995·Granted Nov 4, 1997·21 cites·2 claims
- 1459US7750420B2Integrated circuit having one or more conductive devices formed over a SAW and/or MEMS deviceCYPRESS SEMICONDUCTOR CORP·Filed 2005·Granted Jul 6, 2010·4 cites·10 claims
- 1559US6653515B2Synthesis of α, β, β-trifluorostyrene via in-situ formation of trifluorovinyl metal halideBALLARD POWER SYSTEMS·Filed 2001·Granted Nov 25, 2003·2 cites·33 claims
- 1656US7601759B2Water insoluble additive for improving conductivity of an ion exchange membraneBDF IP HOLDINGS LTD·Filed 2004·Granted Oct 13, 2009·2 cites·12 claims
- 1752US6258861B1α,β,β-trifluorostyrene-based composite membranesBALLARD POWER SYSTEMS·Filed 1999·Granted Jul 10, 2001·12 cites·6 claims
- 1849US2006079594A1Process for preparing graft copolymer membranesSTONE CHARLES·Filed 2005·Application pending·0 cites
- 1948US2008251121A1Oxynitride passivation of solar cellSTONE CHARLES·Filed 2007·Application pending·0 cites
- 2047US2002161061A1Alpha, beta, beta-trifluorostyrene-based composite membranesFiled 2002·Application pending·0 cites
- 2144US2004016693A1Process for preparing graft copolymer membranesBALLARD POWER SYSTEMS·Filed 2003·Application pending·0 cites
- 2243US2005049319A1Graft polymeric membranes and ion-exchange membranes formed therefromBALLARD POWER SYSTEMS·Filed 2004·Application pending·0 cites
- 2336US2005136314A1Ion-exchange membrane for an electrochemical fuel cellBALLARD POWER SYSTEMS·Filed 2003·Application pending·0 cites
- 2435US2002056939A1Stripped porous polymer films and methods of making such filmsFiled 2001·Application pending·0 cites
- 2533US2004009305A1Process for preparing graft copolymer membranesBALLARD POWER SYSTEMS·Filed 2002·Application pending·0 cites
- 2630US6497977B1Method of making stripped porous polymer filmsBALLARD POWER SYSTEMS·Filed 1999·Granted Dec 24, 2002·6 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →