Inventor · Rehoboth, MA, US

Barry D. Colvin

26Patents
11h-index
9Co-inventors
68Inventor score

Filing activity: May 24, 1989 → Jun 28, 2016

Most-cited inventions

PatentTitleAreaCited byStatus
US5062390A Bird feeder Human Necessities 53 Expired
US7946249B2 Nectar feeder with float and valve Human Necessities 49 Active
USD536838S1 Cover for a hummingbird feeder General 36 Expired
USD588756S1 Hummingbird window feeder General 31 Expired
US7231890B2 Method of filling a bird feeder Human Necessities 30 Expired
USD612108S1 Feed port for a bird feeder General 24 Expired
US5452682A Bird feeder Human Necessities 21 Expired
USD536839S1 Hummingbird feeder General 20 Expired
USD523184S1 Seed tray for a bird feeder General 16 Expired
USD330097S Hummingbird feeder General 15 Expired
US4973170A Window thermometer Physics 13 Expired
USD589213S1 Hummingbird window feeder with ant moat General 11 Expired
USD536490S1 Hanger for a hummingbird feeder General 10 Expired
USD541993S1 Bowl for a hummingbird feeder General 9 Expired
USD522699S1 Guard for a bird feeder General 7 Expired
US8863692B2 Nectar feeder having a float with flush stopper Human Necessities 5 Active
US8459206B1 Feed port for a bird feeder Human Necessities 4 Active
US7806081B2 Nectar feeder Human Necessities 4 Active
US8651054B2 Bird feeder with removable ports Human Necessities 3 Active
US10271525B2 Bird feeder with improved rain shield Human Necessities 2 Active
US8863691B2 Nectar feeder with float and valve Human Necessities 2 Active
US9004007B2 Nectar feeder having a float with rounded bottom Human Necessities 1 Active
USD308173S Window thermometer General 1 Expired
US9198401B2 Nectar feeder with float Human Necessities 1 Active
USD472165S1 Bracket for a thermometer General 0 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.