DU

Donald M. Underwood

FM Fmc: 1 patents #867 of 1,735Top 50%
📍 Singapore, SG: #6,661 of 13,971 inventorsTop 50%
Overall (All Time): #3,884,337 of 4,157,543Top 95%
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5044672 Metal-to-metal sealing pipe swivel joint Harold Brian Skeels, Christopher E. Cunningham, Edmund M. Mouret, Michael J. Krenek 1991-09-03