Analysis of Chinese Patents on Cathodic Protection by Applied Current Method in Marine Sector


  • Jin Jia
  • Liang Sun
  • Pengyue Han
  • Yidan Huang



Cathodic protection; Offshore platform; Impressed current; Patent analysis.


The resource problem is the top priority of China's current development, while the ocean is an inexhaustible treasure. The development and utilization of marine resources has always been the key direction of development. The characteristics of offshore engineering operation equipment are: first, the scale of the platform is particularly large, and second, it is long-term in the harsh environment such as moisture and salinity [1]. Therefore, the anti-corrosion of offshore platforms is the research hotspot of relevant technicians, this paper systematically summarizes the patent application of external current in cathodic protection of anti-corrosion technology. It analyzes the patent type, affiliated institution, important applicant, application field and other related contents. The results show that enterprises prefer to actually invent devices, while scientific research institutions, universities and colleges are more about the creation of technical methods.


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Zhang Maisong, Yin Pengfei, Ma Changjiang. Impressed Current Cathodic Protection Technology for Offshore Platforms [ J ]. Total Corrosion Control, 2013, 27 (03): 20-23 + 62.

Shao Jing, Liu Fuguo, Wang Xiutong, Yang Lijun, Zhao Xiaodong, Huang Zhiqiang, Han Yanbo, Zhang Zhaode. Application of cathodic protection and monitoring technology for offshore platforms [ J]. Equipment Environmental Engineering, 2018, 15 (03): 24-28.

Liu Fuguo, Yin Pengfei, Zhang Guoqing, Zhang Wei, Han Bing. Impressed current cathodic protection life extension repair technology for offshore oil platforms [ J]. Corrosion and protection, 2015,36 (03): 276-280.

Hou Shizhong. Research and application of cathodic protection technology [J]. Overall corrosion control, 2018,32 (10): 39-44 + 65.

Song Shide, Liu Lei, Fu Zhiguo, Wang Yi. A double solid reference electrode device containing silver chloride and zinc for deep sea [ P]. Liaoning: CN207276719U, 2018-04-27.

Chen Rongqi, Liu Fuguo, Liu Peilin, Zhang Guoqing, Li Yan, Yang Lijun, Wang Hongfu, Song Bo, Yang Bingfa, Zhao Gang, Yin Pengfei, Han Bing, Xiong Rui. Jacket fixed impressed current cathodic protection device [P]. Beijing: CN212426183U, 2021-01-29.

Han Bing, Li Zhenguo, Ma Changjiang, Yin Pengfei, Zhang Wei.An impressed current cathodic protection device and its protection method for jack-up platform [P]. Shandong Province: CN103060816B, 2015-01-21.

Shang Qianming, Yu Qiuyuan.Ship impressed current cathodic anti-corrosion system and its intelligent control method [ P]. Hubei Province: CN106086900 B, 2018-06-19.

Zhang Ruizhu, Tian Weijie, Jia Xinjie, Guo Xiaogang.Corrosion inhibition method of hydraulic metal structural parts with external electric current using graphite as anode [ P]. Henan: CN108193210A, 2018-06-22.

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How to Cite

Analysis of Chinese Patents on Cathodic Protection by Applied Current Method in Marine Sector. (2024). Academic Journal of Science and Technology, 10(1), 131-135.

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