DW

David M. Watkins

JP Johnson Matthey Plc: 2 patents #34 of 155Top 25%
Overall (All Time): #2,369,375 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4250189 Compositions containing platinum Paul D. Hydes 1981-02-10
4228090 Compositions containing platinum Paul C. Hydes 1980-10-14