The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 02, 2024

Filed:

Sep. 19, 2022
Applicants:

Epistar Corporation, Hsinchu, TW;

Kaistar Lighting (Xiamen) Co., Ltd, Xiamen, CN;

Inventors:

Tzer-Perng Chen, Yangmei, TW;

Tzu-Chi Cheng, Yangmei, TW;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/50 (2010.01); H01L 33/48 (2010.01); H01L 33/62 (2010.01);
U.S. Cl.
CPC ...
H01L 33/504 (2013.01); H01L 33/486 (2013.01); H01L 33/507 (2013.01); H01L 33/62 (2013.01); H01L 2224/48137 (2013.01); H01L 2224/48464 (2013.01); H01L 2224/49109 (2013.01); H01L 2924/181 (2013.01);
Abstract

An LED bulb with a screw base; a cover forming an accommodation space with the screw base; an LED filament located in the accommodation space including a substrate comprising a top surface, a side surface, and an extension direction; a plurality of LED chips disposed on the first top surface; a first electrode arranged on the top surface, electrically connected to the plurality of LED chips; and a first clamp including first and second projecting prongs. The first electrode is clamped by the first and second projecting prongs within the accommodation space. The LED bulb has an imaginary rotational axis not parallel to the extension direction.


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