MUMBAI, India, May 16 -- Intellectual Property India has published a patent application (202517022384 A) filed by Rongsheng Machinery Manufacture Ltd. Of Huabei Oilfield, Hebei, . 043 Huizhan South Road, Huabei Oilfield, Cangzhou, China, on March 12, for 'side door bolt-free ram blowout preventer.'
Inventor(s) include Tang, Jianhua; Xu, Hongqi; Su, Shangwen; Jiang, Dongliang; Liao, Weiheng; Qu, Zhiming; Meng, Zhaochun; Wang, Hongjie; Li, Haohao; Guo, Xue; and Wang, Wei.
The application for the patent was published on May 16, under issue no. 20/2025.
According to the abstract released by the Intellectual Property India: "A side door bolt-free ram blowout preventer, comprising that: first fixed blocks (11) are provided on two side surfaces...