Patent assignee · US · COMPANY

Droll Yankees, Inc.

28Patents
10Active
28Granted
34Portfolio score

Filing activity: Dec 1, 1975 → Aug 2, 2013 · 7 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US4030451A Bird feeder Human Necessities 100 Expired
USD252288S Hummingbird feeder General 78 Expired
US5558040A Bird feeder Human Necessities 70 Expired
US4102308A Bird feeder Human Necessities 69 Expired
US5062388A Bird feeder Human Necessities 69 Expired
US5454348A Hummingbird feeder Human Necessities 56 Expired
USD360710S Combined hummingbird window feeder and mounting bracket General 55 Expired
USD440361S Selective bird feeder General 48 Expired
US7237507B1 Selective bird feeder Human Necessities 32 Expired
USD448126S Selective bird feeder General 31 Expired
US7516716B2 Bird feeder Human Necessities 26 Active
USD262917S Bird feeder General 23 Expired
US7634974B1 Bird feeder Human Necessities 22 Active
US8272607B2 Support system for bird feeder Human Necessities 21 Active
USD337244S Bird feeder seed scoop General 20 Expired
USD539991S1 Bird feeder General 19 Expired
USD452048S Rain guard for a bird feeder General 16 Expired
US7827936B1 Bird feeder Human Necessities 14 Active
US8006946B2 Bird feeder Human Necessities 13 Active
USD422755S Bird fruit feeder General 11 Expired
US7740216B1 Suspension system for a bird feeder Human Necessities 11 Active
US8316800B2 Bird feeder Human Necessities 10 Active
USD352138S Bird feeder seed baffle General 10 Expired
US7946248B2 Knock-down bird feeder with interlocking port Human Necessities 10 Active
USD646027S1 Perch for bird feeder General 8 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.