Printing & Publishing
| Sat 14 Nov 2026
Alexandria, Nov. 14 -- U.S. Patent and Trademark Office has awarded a patent to Pantum Tech Co Ltd and Ninestar Corp for Process Cartridge. Ma Hailong, Zhang Weizhi, Luo Qin, Ding Geming, Liang Qijie, Cao Jianxin, Yu Wenjun, Dai Shuchun, Zeng Likun, Jia Zhizheng, Wu Lianjun, Peng Qingfei and Liu Weichen developed the invention.
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