GENEVA, Sept. 16 -- BU, Haiyun (Room 15C, Shunfeng Court, Shenshi Huating Community, Tangzhou Community, Hehua Street, Liuyang CityChangsha, Hunan 410300), 卜海云 (中国湖南省长沙市浏阳市荷花街道唐洲社区盛世华庭顺风庭15C室) filed a patent application (PCT/CN2025/080903) for "FIREWORK DEVICE BASED ON POWDER COMBUSTION AND EJECTION" on Mar 06, 2025. With publication no. WO/2025/185679, the details related to the patent application was published on Sep 11, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, ...