Trademark Overview
On Wednesday, September 10, 2025, a trademark application was filed for PORTA PRO with the United States Patent and Trademark Office. The USPTO has given the PORTA PRO trademark a serial number of 99384699. The federal status of this trademark filing is NEW APPLICATION - RECORD INITIALIZED NOT ASSIGNED TO EXAMINER as of Wednesday, September 10, 2025. This trademark is owned by Koss Corporation. The PORTA PRO trademark is filed in the Medical Instrument Products category with the following description:
Hearing aids; Assistive listening device for the hearing impaired; Parts of acoustic apparatus for the hearing-impaired, namely, cerumen protection systems; Wireless transmitters and receivers for use with hearing aids; Hearing aids and structural parts therefor; Digital hearing aids; Electric hearing aids