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USPTO Patent Rankings Data through Sept 30, 2025
DL

David Roger Lewin

TAThe National Blood Authority: 1 patents #1 of 3Top 35%
Elstree, GB: #2 of 5 inventorsTop 40%
Overall (2002): #234,155 of 266,432Top 90%
1 Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6387877 Purification method John More, Jacqueline Rott 2002-05-14