Barry D. Colvin
26Patents
11h-index
9Co-inventors
68Inventor score
Filing activity: May 24, 1989 → Jun 28, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| 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.