DT

Derek L. Tyrrell

WL Waddington And Duval Limited: 2 patents #3 of 6Top 50%
📍 Deadwood, SD: #5 of 10 inventorsTop 50%
🗺 South Dakota: #678 of 2,308 inventorsTop 30%
Overall (All Time): #2,296,292 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5337775 Dispensing taps Charles A. Lane, Ian Woodward 1994-08-16
5211313 Dispensing taps Anthony J. Lucking, Charles A. Lane 1993-05-18