DM

David MARVELL

JL Johnson Matthey Public Limited: 1 patents #54 of 189Top 30%
📍 Royston, GB: #11 of 42 inventorsTop 30%
Overall (2019): #494,515 of 560,194Top 90%
1
Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
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