DM

Duncan William John McCallien

JL Johnson Matthey Public Limited: 1 patents #59 of 183Top 35%
📍 Durham, GB: #8 of 33 inventorsTop 25%
Overall (2020): #485,480 of 565,922Top 90%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10816533 Method of marking hydrocarbon liquids David Stubbs 2020-10-27