Edward E. Hammer
31Patents
8h-index
22Co-inventors
75Inventor score
Filing activity: Dec 5, 1975 → Apr 12, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5592054A | Fluorescent lamp ballast with selectable power levels | Electricity | 73 | Expired |
| US4399391A | Circuit for starting and operating fluorescent lamps | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4185233A | High efficiency ballast system for gaseous discharge lamps | Emerging Cross-Sectional Technologies | 19 | Expired |
| US3995191A | Reprographic fluorescent lamp having improved reflector layer | Electricity | 16 | Expired |
| US4316121A | Integrally ballasted fluorescent lamp unit | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4914354A | Reactor-type ballast circuit | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5350972A | UV absorbing lamp glass | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4562381A | Starting circuit for multiple fluorescent lamps | Electricity | 9 | Expired |
| US4422010A | Shaped discharge lamp with starting aid | Electricity | 8 | Expired |
| US5506474A | Compact fluorescent lamp using a light reflecting adhesive material | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6140751A | Electrolytic capacitor heat sink | Electricity | 8 | Expired |
| US4425530A | Time delay lamp ballast circuit | Emerging Cross-Sectional Technologies | 7 | Expired |
| US3995192A | Reprographic fluorescent lamp with improved reflector layer | Chemistry; Metallurgy | 6 | Expired |
| US4321502A | U-Shaped discharge lamp with starting strip | Electricity | 6 | Expired |
| US4513225A | Fluorescent lamp series system | Electricity | 6 | Expired |
| US4698549A | D.C. lamp discharge gas pumping control | Electricity | 5 | Expired |
| US6841939B2 | Fluorescent lamp | Electricity | 5 | Expired |
| US6051930A | Extended wire connector for starting compact fluorescent lamp system | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4523126A | Shaped discharge lamp with starting aid | Electricity | 4 | Expired |
| US4463280A | Shaped discharge lamp with starting aid | Electricity | 3 | Expired |
| US6118217A | Additional electrode for three-level output and improved starting of compact fluorescent lamp systems | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4468591A | Shaped discharge lamp with starting aid and starting strip | Electricity | 3 | Expired |
| US6064152A | Electrically conductive cylinder for improved starting of compact fluorescent lamp systems | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4900986A | Ballast circuit for starting fluorescent lamps | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4388564A | Energy saving fluorescent lamp circuit | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.