Ray E. Swartzendruber
20Patents
12h-index
6Co-inventors
74Inventor score
Filing activity: Feb 2, 1976 → Jan 23, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5092274A | Poultry feeder | Human Necessities | 66 | Expired |
| US5492082A | Method and apparatus for controlling temperature within poultry houses and the like | Human Necessities | 63 | Expired |
| US4476811A | Adjustable feeder with brood gate | Human Necessities | 58 | Expired |
| US4995343A | Feeder apparatus | Human Necessities | 45 | Expired |
| US4044920A | Load cell and control for bulk bin | Physics | 44 | Expired |
| US4070990A | Feeder pan assembly | Human Necessities | 43 | Expired |
| US4834026A | Poultry feeder assembly | Human Necessities | 32 | Expired |
| US5567200A | Method and apparatus for circulating air | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| USD295091S | Hanging poultry watering unit | General | 25 | Expired |
| US4640229A | Apparatus for feeding livestock | Human Necessities | 23 | Expired |
| USD302750S | Poultry feeder | General | 16 | Expired |
| USD321959S | Feeder for poultry | General | 13 | Expired |
| US4495894A | Feed distribution apparatus | Human Necessities | 12 | Expired |
| US5263449A | Throttle cam | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4317430A | Auger conveyor tube | Human Necessities | 7 | Expired |
| US4667623A | Intake cup apparatus | Human Necessities | 6 | Expired |
| USD295905S | Base for a pig feeder | General | 3 | Expired |
| USD410077S | Fan | General | 2 | Expired |
| USD363982S | Fan assembly motor mounting | General | 1 | Expired |
| USD363117S | Motor mounting for a fan assembly | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.