Donald P. Smith
45Patents
31h-index
24Co-inventors
85Inventor score
Filing activity: May 19, 1976 → Jan 4, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4154861A | Heat treatment of food products | Emerging Cross-Sectional Technologies | 188 | Expired |
| US5205274A | Turntable convection oven | Mechanical Engineering; Lighting; Heating | 131 | Expired |
| US4409453A | Combined microwave and impingement heating apparatus | Electricity | 112 | Expired |
| US4462383A | Impingement food preparation apparatus | Emerging Cross-Sectional Technologies | 99 | Expired |
| US4338911A | Cooking apparatus | Electricity | 89 | Expired |
| US5401940A | Oscillating air dispensers for microwave oven | Performing Operations; Transporting | 74 | Expired |
| US4479776A | Thermal treatment of food products | Mechanical Engineering; Lighting; Heating | 74 | Expired |
| US4492839A | Thermal treatment apparatus | Electricity | 63 | Expired |
| US4965435A | Forced convection tunnel oven | Human Necessities | 62 | Expired |
| US5131841A | Balanced air return convection oven | Human Necessities | 59 | Expired |
| US4750276A | Impingement thermal treatment apparatus with collector plate | Mechanical Engineering; Lighting; Heating | 58 | Expired |
| US5134263A | Infrared heating control | Electricity | 58 | Expired |
| US4835351A | Oven humidity reservoir | Human Necessities | 55 | Expired |
| US4474498A | Multiple-pass impingement heating and cooling device | Mechanical Engineering; Lighting; Heating | 52 | Expired |
| US5147994A | Microwave vending machine | Emerging Cross-Sectional Technologies | 51 | Expired |
| US5210387A | Food handling system | Emerging Cross-Sectional Technologies | 50 | Expired |
| US4289792A | Microwave treatment of food products | Electricity | 50 | Expired |
| US5423248A | Air circulator for impingement heat transfer apparatus | Human Necessities | 50 | Expired |
| US5078050A | Hot plate carrier | Emerging Cross-Sectional Technologies | 46 | Expired |
| US4679542A | Fan-plenum configuration | Human Necessities | 46 | Expired |
| US4834063A | Food cooking oven with duct fingers and method | Human Necessities | 45 | Expired |
| US5398666A | Turntable convection heater | Human Necessities | 45 | Expired |
| US5161889A | Heat transfer rate target module | Physics | 44 | Expired |
| US5818014A | Air dispensers for microwave oven | Electricity | 43 | Expired |
| US4876426A | Method and apparatus for water vapor control in convection ovens | Human Necessities | 43 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.