Inventor · disambiguated record
David Edward Barnwell
Also filed as: BARNWELL DAVID · BARNWELL DAVID E · BARNWELL DAVID EDWARD
9 granted patents·3 pending applications·161 citations·filing 1980–2023
86Inventor score
Files withJOHNSON MATTHEY FUEL CELLS LTD4BARNWELL DAVID EDWARD2JOHNSON MATTHEY PLC2BARNWELL DAVID1JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LTD1
Top patents by PatentIndex Score
12 records- 0191US4465717AAssembly for marking elongate objectsRAYCHEM LTD·Filed 1980·Granted Aug 14, 1984·86 cites·4 claims
- 0277US8399145B2Membrane electrode assemblyBARNWELL DAVID EDWARD·Filed 2008·Granted Mar 19, 2013·6 cites·11 claims
- 0376US2023352713A1Membrane and processJOHNSON MATTHEY HYDROGEN TECHNOLOGIES LTD·Filed 2023·Application pending·0 cites
- 0475US4896904AHeat shrinkable device with adhesive barrier for connecting elongate objectsRACHEM LIMITED·Filed 1987·Granted Jan 30, 1990·54 cites·39 claims
- 0569US7128993B2Composite membraneJOHNSON MATTHEY PLC·Filed 2003·Granted Oct 31, 2006·10 cites·19 claims
- 0667US10074860B2Process of manufacturing a catalyst-coated membrane-seal assemblyJOHNSON MATTHEY FUEL CELLS LTD·Filed 2015·Granted Sep 11, 2018·1 cites·20 claims
- 0760US8408740B2Luminaire assemblies and applications thereofBARNWELL DAVID·Filed 2010·Granted Apr 2, 2013·4 cites·24 claims
- 0857US2020303753A1Membrane and processJOHNSON MATTHEY FUEL CELLS LTD·Filed 2017·Application pending·0 cites
- 0951US2011091790A1Ion-conducting membrane structuresJOHNSON MATTHEY PLC·Filed 2009·Application pending·0 cites
- 1049US10186720B2Membrane-seal assemblyJOHNSON MATTHEY FUEL CELLS LTD·Filed 2015·Granted Jan 22, 2019·0 cites·12 claims
- 1145US9692071B2Membrane structureBARNWELL DAVID EDWARD·Filed 2011·Granted Jun 27, 2017·0 cites·19 claims
- 1242US10218022B2Process for the manufacturing of a reinforced membrane-seal assemblyJOHNSON MATTHEY FUEL CELLS LTD·Filed 2015·Granted Feb 26, 2019·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →