Roger A. Howells
9Patents
5h-index
12Co-inventors
60Inventor score
Filing activity: Jul 16, 1987 → Oct 9, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4891223A | Controlled release delivery coating formulation for bioactive substances | Human Necessities | 82 | Expired |
| US5343714A | Spiral freezer | Performing Operations; Transporting | 17 | Expired |
| US4755118A | Extrusion cooler with atmosphere recycle and openable top | Performing Operations; Transporting | 15 | Expired |
| US5417074A | Liquid nitrogen immersion/impingement freezing method and apparatus | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5267490A | Sampling apparatus for cryogenic food freezers | Physics | 6 | Expired |
| US4958466A | Exhaust gas media separator with recycling and dust collection | Performing Operations; Transporting | 4 | Expired |
| USD582257S1 | Device for holding a dispensing nozzle | General | 4 | Expired |
| US4959931A | Method and apparatus for preventing binding and overloading of media feed screw conveyor | Performing Operations; Transporting | 2 | Expired |
| US4880162A | Gas atomization nozzle for metal powder production | Performing Operations; Transporting | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.