Simon-Johnson Company
11Patents
0Active
11Granted
30Portfolio score
Filing activity: Jul 28, 1978 → Jan 23, 1989
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4262387A | Method and apparatus for eviscerating poultry | Human Necessities | 32 | Expired |
| US4564977A | Poultry vent removal machine | Human Necessities | 27 | Expired |
| US4873746A | Method and apparatus for removing breast meat from poultry carcass | Human Necessities | 26 | Expired |
| US4669148A | Machine for cutting up poultry into a number of pieces | Human Necessities | 20 | Expired |
| US4827570A | Method and apparatus for removing breast meat from poultry carcass | Human Necessities | 20 | Expired |
| US4561148A | Machine for pulling viscera package from fowls | Human Necessities | 19 | Expired |
| US4788831A | Method and apparatus for loading poultry carcasses into drag type positive control chiller | Human Necessities | 13 | Expired |
| US4175302A | Sealed feather picking unit | Human Necessities | 9 | Expired |
| US4217678A | Poultry picking machine | Human Necessities | 9 | Expired |
| US4249285A | Poultry killing method and machine | Human Necessities | 7 | Expired |
| US4293978A | Poultry head pulling apparatus | Human Necessities | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.