DM

Duncan William John McCallien

JL Johnson Matthey Public Limited: 1 patents #26 of 104Top 25%
📍 Durham, GB: #7 of 22 inventorsTop 35%
Overall (2016): #413,125 of 481,213Top 90%
1
Patents 2016

Issued Patents 2016

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9506000 Tracers and method of marking liquids Vincent Brian Croud, Ian Stuart Edworthy 2016-11-29