China Electric Power Research Institute and two other companies jointly applied for patents related to submarine cable anchoring, featuring a secondary fractal structure to grip the cable and increase contact to prevent slipping.

On April 3, according to information from the China National Intellectual Property Administration, a patent application has been filed by China Electric Power Research Institute Co., Ltd., the Electric Power Research Institute of State Grid Zhejiang Electric Power Co., Ltd., and Ningbo Orient Cable Co., Ltd. for a patent titled “A Fractal Anchoring Device for the Landing Segment of a Submarine Cable.” The application publication number is CN121769746A, the application number is CN202511926478.1, the publication date is March 31, 2026, the application date is December 19, 2025. The inventors are Ma Yu, Yang Yong, Liu Zongxi, Ouyang Benhong, Wang Shaohua, Cao Junping, Wu Wenduo, Wang Yuli, Huang Kaiwen, Deng Xianbo, Xia Rong, Li Wenjie, Liu Songhua, Zhao Peng, Ye Haoliang, Zhu Qijie, Chen Lei, Wang Fangshu, Wang Kejie. The patent agent is Beijing Gongxin United Intellectual Property Agency Co., Ltd., and the patent agent is Bai Xiaoxi. Classification numbers are H02G3/02 and H02G9/02.

The patent abstract shows that the invention provides a fractal anchoring device for the landing segment of a submarine cable, comprising: at least one pair of support members arranged radially symmetrically along the submarine cable; the support members collectively enclose a clamping cavity for clamping the submarine cable from opposite sides; each support member includes a substrate, and a first arc groove is provided on the substrate, within which a first clamping member is rotatably connected; a second arc groove is provided on the first clamping member, and a second clamping member is rotatably connected within the second arc groove; the first clamping member and/or the second clamping member have a contact surface configured to contact the outer surface of the submarine cable, so as to rotate along with the outer surface of the submarine cable during clamping, achieving dynamic contact with the outer surface. By forming a secondary fractal clamping structure through the first clamping member and the second clamping member, the device can adaptively rotate following the contour of the outer surface of the submarine cable, increasing the effective contact area with the submarine cable, thereby improving clamping stability and suppressing slippage of the submarine cable caused by the submarine cable.

According to Tianyancha data, China Electric Power Research Institute Co., Ltd. was established on October 12, 2001, with Ge Jun as its legal representative. Its industry is research and experimental development. The company is categorized as large-scale, with registered capital of 3.35B RMB and paid-in capital of 3.35B RMB. The注册地址 is 15 Qinghe Xiaoying East Road, Haidian District, Beijing. China Electric Power Research Institute Co., Ltd. has made external investments in 26 companies, participated in 9,446 bidding and tendering projects. In terms of property clues, it has 109 trademark information entries, 5,000 patent information entries, and holds 189 administrative licenses.

China Electric Power Research Institute Co., Ltd.’s recent patent status is as follows:

According to Tianyancha data, the Electric Power Research Institute of State Grid Zhejiang Electric Power Co., Ltd. was established on May 15, 1990. Its legal representative is Lin Lei. The industry is research and experimental development. The registered capital, paid-in capital, and the registered address are in Hangzhou, Zhejiang Province, at the Chaohui Eight District, Gongshu District? (Note: source fields for registered and paid-in capital are blank), 8? (as provided). The registered address is in the Chaohui Eight District, Gongshu District, Hangzhou, Zhejiang Province. The Electric Power Research Institute of State Grid Zhejiang Electric Power Co., Ltd. has made external investments in 0 companies, participated in 233 bidding and tendering projects. In terms of property clues, it has 2 trademark information entries, 3,883 patent information entries, and holds 65 administrative licenses.

The Electric Power Research Institute of State Grid Zhejiang Electric Power Co., Ltd.’s recent patent status is as follows:

Orient Cable was established on October 22, 1998, and was listed on the Shanghai Stock Exchange on October 15, 2014. The registered address is in Ningbo, Zhejiang Province, and the office address is also in Ningbo, Zhejiang Province. The company is a domestic provider of submarine and land cable system solution, with core technical capabilities and advantages across the full industrial chain.

Orient Cable’s main business is the research and development, manufacturing, sales, and related services for various electric wires and cables. Its Shenwan industry classification is power equipment—power grid equipment—cable components and others, involving concept sectors such as offshore wind power, wind energy, and high dividends.

In 2025, Orient Cable’s operating revenue reached 10.84B yuan, ranking 4th among 15 industry companies. Although far below the 47.96B yuan of the first-place Bao Sheng Co., Ltd. and the 24.67B yuan of the second-place Jingda Cable, it is higher than the industry average of 9.45B yuan and the median of 4.51B yuan. In its main business, revenue from submarine cables and high-voltage cables was 5.36B yuan, accounting for 49.46%; power engineering and equipment cables revenue was 4.73B yuan, accounting for 43.61%. In terms of net profit, it performs even better: 1.27B yuan in the period, ranking first among 15 companies in the industry, far exceeding the 697M yuan of the second-place Jinbei Electric, and significantly higher than the industry average of 233M yuan and the median of 108M yuan.

Ningbo Orient Cable Co., Ltd.’s recent patent status is as follows:

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