Inventor
GREENWELL DAVID ROBERT
GB6 patents
⚠️ This page may combine multiple inventors who share the name “GREENWELL DAVID ROBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JOHNSON MATTHEY PLC
5 patentsUS8012439B2Sep 6, 2011
Filter
JOHNSON MATTHEY PLC48 citations96
US9352279B2May 31, 2016
Filter substrate comprising three-way catalyst
JOHNSON MATTHEY PLC27 citations92
US9366166B2Jun 14, 2016
Filter substrate comprising zone-coated catalyst washcoat
JOHNSON MATTHEY PLC13 citations83
US9347349B2May 24, 2016
Positive ignition engine and exhaust system comprising catalysed zone-coated filter substrate
JOHNSON MATTHEY PLC14 citations83
US9789443B2Oct 17, 2017
Filter substrate comprising three-way catalyst
JOHNSON MATTHEY PLC13 citations82