David R. Crawford
9Patents
6h-index
15Co-inventors
60Inventor score
Filing activity: Jul 28, 1978 → May 28, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9057388B2 | Vacuum trap | Electricity | 365 | Active |
| US4788831A | Method and apparatus for loading poultry carcasses into drag type positive control chiller | Human Necessities | 13 | Expired |
| US4217678A | Poultry picking machine | Human Necessities | 9 | Expired |
| US4175302A | Sealed feather picking unit | Human Necessities | 9 | Expired |
| USD334924S | Memory cartridge for a point of transaction terminal | General | 8 | Expired |
| US4961248A | Scalder apparatus | Human Necessities | 6 | Expired |
| US5442939A | Carrier for supporting textile material in a wet treatment machine | Textiles; Paper | 1 | Expired |
| US5590553A | Carrier for supporting textile material packages in a wet treatment machine and package retaining cap for same | Textiles; Paper | 1 | Expired |
| US9847213B2 | Vacuum trap | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.