Inventor · disambiguated record
Betsy P. Colwell
Also filed as: COLWELL BETSY · COLWELL BETSY P
9 granted patents·405 citations·filing 1993–2001
91Inventor score
Technology areasA01K
Files withDROLL YANKEES INC9
Top patents by PatentIndex Score
9 records- 0194USD360710SCombined hummingbird window feeder and mounting bracketDROLL YANKEES INC·Filed 1994·Granted Jul 25, 1995·56 cites·1 claims
- 0292US5558040ABird feederDROLL YANKEES INC·Filed 1995·Granted Sep 24, 1996·106 cites·20 claims
- 0391USD440361SSelective bird feederDROLL YANKEES INC·Filed 2000·Granted Apr 10, 2001·50 cites·1 claims
- 0491US5454348AHummingbird feederDROLL YANKEES INC·Filed 1994·Granted Oct 3, 1995·72 cites·10 claims
- 0589US7237507B1Selective bird feederDROLL YANKEES INC·Filed 2001·Granted Jul 3, 2007·40 cites·12 claims
- 0685USD448126SSelective bird feederDROLL YANKEES INC·Filed 2000·Granted Sep 18, 2001·34 cites·1 claims
- 0770USD452048SRain guard for a bird feederDROLL YANKEES INC·Filed 2000·Granted Dec 11, 2001·18 cites·1 claims
- 0870USD352138SBird feeder seed baffleDROLL YANKEES INC·Filed 1993·Granted Nov 1, 1994·15 cites·1 claims
- 0967USD422755SBird fruit feederDROLL YANKEES INC·Filed 1999·Granted Apr 11, 2000·14 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →