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US Patent 11061307 Projection optical system and projector

Overview Structured Data Issues Contributors Activity

Is a

Date Filed

May 29, 2020

Date of Patent

July 13, 2021

Patent Application Number

16886960

Patent Citations

US Patent 10642135 Projector

US Patent 10197894 Dustproof member for image generation device and image projection apparatus

US Patent 10942437 Rotatable projection lens and projector

US Patent 10928720 Projection optical system, image projection device and image projection system

US Patent 10168609 Projection lens and projector

Patent Citations Received

US Patent 11592731 Projection lens and projection device

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

Patent Primary Examiner

William C. Dowling

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