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. 27, 2020
Filed:
Sep. 19, 2018
Ledvance Llc, Wilmington, MA (US);
Arunava Dutta, Winchester, MA (US);
Jason Li, Boxford, MA (US);
LEDVANCE LLC, Wilmington, MA (US);
Abstract
A light engine comprising a substantially tubular substrate including base portion with a plurality of slots, a first group of at least two filament LEDs on a first portion of the substantially tubular substrate, and a second group of at least two filament LEDs on a second portion of the substantially tubular substrate. Each of the first and second groups of the at least two filament LEDs being electrically connected through a base electrode to electrode contacts in the slots. The light engine also includes an electrical bus wire present proximate to the end of the substantially tubular substrate that is opposite the end at the base portion of the substantially tubular substrate, the electrical bus wire in contact with each filament LED for each of the first and second groups of at least two filament LEDs.