JB

John Barker

SB Shell Internationale Research Maatschappij B.V.: 1 patents #5 of 35Top 15%
📍 Ruddington, GB: #1 of 1 inventorsTop 100%
Overall (1989): #96,676 of 140,708Top 70%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4847386 Process for preparing thiophene derivatives Patrick Robinson Huddleston 1989-07-11