JD

James C. Duffy

DD Delta Design: 1 patents #33 of 75Top 45%
Overall (All Time): #976,824 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10852321 Test handler head having reverse funnel design David G. Rowe, Tyler Bettendorf, Julius Mulle, Thanh Du, Jay Gem Mandafe 2020-12-01
5038689 Book restraint assembly for shelving 1991-08-13
4921264 Collapsible library range dolly 1990-05-01
4903847 Library shelf assembly 1990-02-27
4238944 Rolling of stepped shafts 1980-12-16