James E. Simpson
34Patents
18h-index
30Co-inventors
81Inventor score
Filing activity: Dec 11, 1978 → Oct 31, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6313587A | High frequency inductive lamp and power oscillator | Emerging Cross-Sectional Technologies | 156 | Expired |
| US6617806B2 | High brightness microwave lamp | Emerging Cross-Sectional Technologies | 79 | Expired |
| US5438242A | Apparatus for controlling the brightness of a magnetron-excited lamp | Emerging Cross-Sectional Technologies | 63 | Expired |
| US6947522B2 | Rotating notched transmission x-ray for multiple focal spots | Electricity | 62 | Expired |
| US5227698A | Microwave lamp with rotating field | Electricity | 62 | Expired |
| US4887192A | Electrodeless lamp having compound resonant structure | Electricity | 58 | Expired |
| US5594303A | Apparatus for exciting an electrodeless lamp with an increasing electric field intensity | Electricity | 57 | Expired |
| US4975625A | Electrodeless lamp which couples to small bulb | Electricity | 56 | Expired |
| US5448135A | Apparatus for coupling electromagnetic radiation from a waveguide to an electrodeless lamp | Electricity | 53 | Expired |
| US5525865A | Compact microwave source for exciting electrodeless lamps | Electricity | 53 | Expired |
| US5361274A | Microwave discharge device with TM.sub.NMO cavity | Electricity | 53 | Expired |
| US5786667A | Electrodeless lamp using separate microwave energy resonance modes for ignition and operation | Electricity | 52 | Expired |
| US6031333A | Compact microwave lamp having a tuning block and a dielectric located in a lamp cavity | Electricity | 51 | Expired |
| US5910710A | Method and apparatus for powering an electrodeless lamp with reduced radio frequency interference | Electricity | 50 | Expired |
| US4431888A | Microwave oven with improved feed structure | Electricity | 48 | Expired |
| US4596915A | Microwave oven having resonant antenna | Electricity | 43 | Expired |
| US6476557B1 | Non-rotating electrodeless lamp containing molecular fill | Electricity | 41 | Expired |
| US5498308A | Plasma asher with microwave trap | Electricity | 27 | Expired |
| US5841242A | Electrodeless lamp with elimination of arc attachment | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4327266A | Microwave ovens for uniform heating | Electricity | 17 | Expired |
| US4284868A | Microwave oven | Electricity | 13 | Expired |
| US4580023A | Microwave oven with circular polarization | Electricity | 11 | Expired |
| US4511779A | Microwave oven shelf | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4528549A | Bipolar digitizer having compression capability | Electricity | 10 | Expired |
| US4414453A | Microwave oven feed apparatus | Electricity | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.