BC

Betsy P. Colwell

DY Droll Yankees: 9 patents #1 of 14Top 8%
📍 Foster, RI: #7 of 45 inventorsTop 20%
🗺 Rhode Island: #663 of 6,211 inventorsTop 15%
Overall (All Time): #584,593 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
7237507 Selective bird feeder 2007-07-03
D452048 Rain guard for a bird feeder 2001-12-11
D448126 Selective bird feeder 2001-09-18
D440361 Selective bird feeder 2001-04-10
D422755 Bird fruit feeder 2000-04-11
5558040 Bird feeder Wendy A. Wagner, Paul Graham, John Kline 1996-09-24
5454348 Hummingbird feeder Paul Graham 1995-10-03
D360710 Combined hummingbird window feeder and mounting bracket 1995-07-25
D352138 Bird feeder seed baffle John Tucker 1994-11-01