LED light bulb
US10738946B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2019 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Oct 15, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light bulb apparatus includes a head cup, a bottom support, multiple light strips and a bulb shell. The head cup is connected to an external power source. The bottom support is extended from the head cup. Each light strip has a top end and a bottom end. The bottom ends of the light strips are connected to the bottom support. The top ends of the light strips form a top polygonal shape and the bottom ends of the light strips form a bottom polygonal shape. The bottom polygonal shape has a bigger area size than the top polygonal shape. Each light strip has a skewed angle with respect to a middle axis perpendicular to the bottom shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.