DJ

Dereck R. Johns

Air Products And Chemicals: 1 patents #1,147 of 1,997Top 60%
📍 Hillsborough, GB: #11 of 15 inventorsTop 75%
Overall (All Time): #4,125,717 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4239159 Production of fine metal powders 1980-12-16