Inventor · disambiguated record
Thomas Robertson Ralph
Also filed as: RALPH THOMAS R · RALPH THOMAS ROBERTSON
17 granted patents·9 pending applications·490 citations·filing 1995–2023
94Inventor score
Files withJOHNSON MATTHEY PLC12JOHNSON MATTHEY FUEL CELLS LTD5JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LTD3BARNWELL DAVID EDWARD2BALL SARAH1
Top patents by PatentIndex Score
26 records- 0192US6042958AComposite membranesJOHNSON MATTHEY PLC·Filed 1998·Granted Mar 28, 2000·84 cites·28 claims
- 0290US10964967B2Process for the recovery of ionomerJOHNSON MATTHEY FUEL CELLS LTD·Filed 2016·Granted Mar 30, 2021·9 cites·9 claims
- 0389US5501915APorous electrode for electrode assemblies in a fuel cellJOHNSON MATTHEY PLC·Filed 1995·Granted Mar 26, 1996·112 cites·8 claims
- 0485US5759944ACatalyst materialJOHNSON MATTHEY PLC·Filed 1997·Granted Jun 2, 1998·92 cites·9 claims
- 0584US6531240B1Gas diffusion substratesJOHNSON MATTHEY PLC·Filed 2000·Granted Mar 11, 2003·27 cites·23 claims
- 0682US7405021B2Water-retaining anode structure for a fuel cellJOHNSON MATTHEY PLC·Filed 2001·Granted Jul 29, 2008·22 cites·9 claims
- 0782US6677073B1Non-woven fiber websJOHNSON MATTHEY PLC·Filed 2000·Granted Jan 13, 2004·22 cites·17 claims
- 0882US5795669AElectrodeJOHNSON MATTHEY PLC·Filed 1996·Granted Aug 18, 1998·73 cites·14 claims
- 0977US8399145B2Membrane electrode assemblyBARNWELL DAVID EDWARD·Filed 2008·Granted Mar 19, 2013·6 cites·11 claims
- 1076US2023352713A1Membrane and processJOHNSON MATTHEY HYDROGEN TECHNOLOGIES LTD·Filed 2023·Application pending·0 cites
- 1174US6949308B2Gas diffusion substrateTECHNICAL FIBRE PRODUCTS LTD·Filed 2001·Granted Sep 27, 2005·15 cites·18 claims
- 1271US2018166695A1Ternary platinum alloy catalystJOHNSON MATTHEY FUEL CELLS LTD·Filed 2018·Application pending·0 cites
- 1370US9923210B2Ternary platinum alloy catalystJOHNSON MATTHEY FUEL CELLS LTD·Filed 2014·Granted Mar 20, 2018·0 cites·8 claims
- 1469US11239485B2ProcessJOHNSON MATTHEY FUEL CELLS LTD·Filed 2020·Granted Feb 1, 2022·0 cites·8 claims
- 1569US7128993B2Composite membraneJOHNSON MATTHEY PLC·Filed 2003·Granted Oct 31, 2006·10 cites·19 claims
- 1668US7049025B2Gas diffusion substrateJOHNSON MATTHEY PLC·Filed 2001·Granted May 23, 2006·11 cites·17 claims
- 1766US7396610B2SubstrateJOHNSON MATTHEY PLC·Filed 2002·Granted Jul 8, 2008·7 cites·19 claims
- 1864US2024266551A1Oxygen evolution reaction catalystJOHNSON MATTHEY HYDROGEN TECHNOLOGIES LTD·Filed 2022·Application pending·0 cites
- 1964US2025246642A1Oxygen evolution reaction catalystJOHNSON MATTHEY HYDROGEN TECHNOLOGIES LTD·Filed 2022·Application pending·0 cites
- 2057US2020303753A1Membrane and processJOHNSON MATTHEY FUEL CELLS LTD·Filed 2017·Application pending·0 cites
- 2153US9960430B2Ternary platinum alloy catalystBALL SARAH·Filed 2010·Granted May 1, 2018·0 cites·11 claims
- 2251US2011091790A1Ion-conducting membrane structuresJOHNSON MATTHEY PLC·Filed 2009·Application pending·0 cites
- 2345US9692071B2Membrane structureBARNWELL DAVID EDWARD·Filed 2011·Granted Jun 27, 2017·0 cites·19 claims
- 2440US2005151121A1Electrocatalyst inkJOHNSON MATTHEY PLC·Filed 2003·Application pending·0 cites
- 2537US2004208993A1Substrate binderFiled 2004·Application pending·0 cites
- 2636US2004266299A1SubstrateFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →