DG

David Robert Greenwell

JL Johnson Matthey Public Limited: 8 patents #70 of 922Top 8%
Overall (All Time): #644,013 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
9789443 Filter substrate comprising three-way catalyst 2017-10-17
9366166 Filter substrate comprising zone-coated catalyst washcoat Philip Gerald Blakeman 2016-06-14
9352279 Filter substrate comprising three-way catalyst 2016-05-31
9347349 Positive ignition engine and exhaust system comprising catalysed zone-coated filter substrate Philip Gerald Blakeman 2016-05-24
9261004 Filter for filtering particulate matter from exhaust gas emitted from a compression ignition engine Louise Clare Arnold, Robert James Brisley, Guy Richard Chandler, Andrew Francis Chiffey, Keith Anthony Flanagan +1 more 2016-02-16
8608820 Filter for filtering particulate matter from exhaust gas emitted from a compression ignition engine Louise Clare Arnold, Robert James Brisley, Guy Richard Chandler, Andrew Francis Chiffey, Keith Anthony Flanagan +1 more 2013-12-17
8211393 Exhaust system for a vehicular positive ignition internal combustion engine Louise Clare Arnold, Robert James Brisley, Neil Robert Collins, Christopher Gough Morgan 2012-07-03
8012439 Filter Louise Clare Arnold, Robert James Brisley, Christopher Gough Morgan 2011-09-06