Paul Hellwig
7Patents
5h-index
9Co-inventors
56Inventor score
Filing activity: Aug 6, 1980 → Nov 21, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4396860A | Electric lamp with a sleeve-shaped cap | Electricity | 16 | Expired |
| US4384236A | Electric lamp with a sleeve-shaped cap | Electricity | 10 | Expired |
| US4485326A | Electric lamp with a sleeve-shaped cap | Electricity | 8 | Expired |
| US6815889B2 | High-pressure gas discharge lamp | Electricity | 6 | Expired |
| US5053935A | Lamp/reflector unit | Electricity | 6 | Expired |
| US4849670A | Electric lamp having a pinch supported in a sleeve-shared cap | Electricity | 5 | Expired |
| US6812625B2 | Discharge lamp and outer bulb therefor | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.