DM

David MARVELL

JL Johnson Matthey Public Limited: 9 patents #52 of 922Top 6%
📍 Royston, GB: #43 of 325 inventorsTop 15%
Overall (All Time): #530,296 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
12357981 Particulate filters Sabina Silvia Haenel Burmester, Thomas HOTCHKISS, Jonathon Paul Sapsford 2025-07-15
12312990 Catalytic wall-flow filter Francesco FOSCHI, James Googan, Anton MacMinn, Stuart David Reid, Keimoy ST HILL +2 more 2025-05-27
12201969 Method of forming an inorganic oxide coating on a monolith article Kaneshalingam Arulraj, Peter BELLHAM, Alexander DE BRUIN, Guy Richard Chandler, Chris Corrigan +1 more 2025-01-21
11541383 Particulate filters Peter BELLHAM, Andrew Francis Chiffey, Lucy CLOWES, Thomas HOTCHKISS, John Turner +1 more 2023-01-03
11207667 Particulate filters Peter BELLHAM, Andrew Francis Chiffey, Lucy CLOWES, Thomas HOTCHKISS, John Turner +1 more 2021-12-28
10808585 Catalytic wall-flow filter with partial surface coating Guy Richard Chandler, Keith Anthony Flanagan, Paul Richard Phillips 2020-10-20
10744496 Catalyst binders for filter substrates Guy Richard Chandler, Keith Anthony Flanagan, Alexander Nicholas Michael Green, Paul Richard Phillips 2020-08-18
10369555 Catalytic wall-flow filter with an ammonia slip catalyst Garry Adam Burgess, Guy Richard Chandler, Keith Anthony Flanagan, Paul Richard Phillips 2019-08-06
8940259 Catalysed soot filter Gavin Michael Brown, Andrew Francis Chiffey 2015-01-27