USPTO trademark record

DUOKER

Live registered mark · Owner Li Yuehao · Classes 9

Mark details

Owner: Li Yuehao
Serial number: 88049472
Registration number: 5691218
Status: REGISTERED
Classes: 9 (Software / electronics / downloadable media)
Filed: 2018-07-24
Registered: 2019-03-05
Goods / services: Alarm monitoring systems; Cases for smartphones; Cell phone battery chargers for use in vehicles; Covers for smartphones; Electric door bells; GPS tracking devices; Headphones; Loudspeakers; Mouse pa…

Register data as of 2026-11-08. Records can trail live filings — check the official USPTO search for the latest status before filing.

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