LED lamp
US6793374B2 · kind B2 · utility
120Cited by
3References
11Claims
0Family size
Inventor
Key dates
| Filing date | Sep 25, 2002 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Sep 25, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED lamp has a gear column, which is connected between a cap and substrates. The substrates are arranged as a polyhedron with planar surfaces. Each surface has at least one LED. The gear column also has a heat-dissipater, which interconnects the substrates and the lamp cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.