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.
Patent No.:
Date of Patent:
Oct. 07, 2025
Filed:
Nov. 02, 2021
Ledvance Llc, Wilmington, MA (US);
LEDVANCE LLC, Wilmington, MA (US);
Abstract
A light emitting filament diode that includes a filament substrate; a plurality of light emitting diodes (LEDs) electrically connected and disposed along a length of the filament substrate; and a phosphorus encapsulant present in direct contact with an upper surface and sidewalk of at least one of the plurality of light emitting diodes (LEDs). No portion of phosphorus encapsulant is present overlying a portion of the filament substrate extending between the sidewalls of adjacently situated light emitting diodes having phosphorus encapsulant present thereon. The light emitting filament diode may a include a transparent encapsulant present over at least the light emitting diode chips.