GENEVA, May 19 -- KIM, Kye Sik (40, Seongjigok-ro 46beon-gilBusanjin-guBusan 47102), 김계식 (부산광역시부산진구성지곡로46번길 40) filed a patent application (PCT/KR2025/014597) for "MULTI-PORT SPEAKER DEVICE USING TWO RESONATORS" on Sep 19, 2025. With publication no. WO/2026/100985, the details related to the patent application was published on May 15, 2026.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).

Inventor(s): KIM, Kye Sik (40, Seongjigok-ro 46beon-gilBusanjin-guBusan 47102), 김계1...