Qulian Technology Granted Patent for "Backdoor Attack Defense in Federated Learning Based on Blockchain," Strengthening Data Security

Qulian Technology Granted Patent for "Backdoor Attack Defense in Federated Learning Based on Blockchain," Strengthening Data SecurityOn March 26, 2025, the State Intellectual Property Office of China announced that Hangzhou Qulian Technology Co., Ltd

Qulian Technology Granted Patent for "Backdoor Attack Defense in Federated Learning Based on Blockchain," Strengthening Data Security

On March 26, 2025, the State Intellectual Property Office of China announced that Hangzhou Qulian Technology Co., Ltd. has been granted a patent for "A Method and Apparatus for Defending Against Backdoor Attacks in Federated Learning Based on Blockchain," with authorization announcement number CN113469376B. The patent application was filed in May 2021, marking a significant breakthrough for Qulian Technology in blockchain security and further solidifying its leading position in the field. This patent is crucial for enhancing the security of federated learning and safeguarding data privacy and security.

Federated learning, an emerging machine learning technology, allows multiple parties to collaboratively build models without sharing their raw data, effectively addressing data privacy concerns. However, federated learning is vulnerable to backdoor attacks. Attackers can insert backdoors during model training to control model outputs under specific circumstances, creating security risks. Qulian Technology's patent provides a solution to this problem by offering an effective method and apparatus for defending against backdoor attacks in federated learning, providing crucial security assurance for its widespread application.

According to Tianyancha (a Chinese business information platform), Hangzhou Qulian Technology Co., Ltd., established in 2016, has a registered capital and paid-in capital of RMB 48,690,085. Headquartered in Hangzhou, the company primarily engages in technology promotion and application services. For years, Qulian Technology has been dedicated to the research and development and application of blockchain technology, accumulating extensive experience and technical strength in blockchain underlying technology and industry application solutions.

Notably, the company has also demonstrated excellent performance in business expansion. Tianyancha data analysis shows that Hangzhou Qulian Technology Co., Ltd. has invested in 47 companies and participated in 291 bidding projects, demonstrating its strong market competitiveness and business expansion capabilities. Furthermore, the company holds 499 trademark registrations, 915 patent registrations, and 21 administrative licenses, showcasing its commitment to intellectual property protection and compliant operations. This data indirectly confirms Qulian Technology's achievements in technological innovation and market development.

This patent for "A Method and Apparatus for Defending Against Backdoor Attacks in Federated Learning Based on Blockchain" reflects Qulian Technology's accumulated expertise in blockchain security. It not only represents the company's continuous investment in technological innovation but also demonstrates its high emphasis on data security. In today's era of increasingly critical data security, this patented technology will help improve data security levels in various applications, contributing to the construction of a more secure and reliable digital economy ecosystem.

Through continuous innovation and accumulation in blockchain technology, Qulian Technology has become a major player in China's blockchain industry. This patent authorization will undoubtedly further enhance its brand influence and market competitiveness, laying a solid foundation for its future development. As blockchain technology becomes increasingly widely applied across various industries, the demand for security is also growing. Qulian Technology's patented technology is timely, providing new ideas and methods for addressing security issues in federated learning.

Looking ahead, Qulian Technology is expected to continue increasing its R&D investment, continuously exploring and innovating in the field of blockchain security, and contributing more to the healthy development of blockchain technology. Its proactive performance in technological innovation and business expansion also sets a good example for other technology companies and is worth learning from. This patent acquisition is not only a significant milestone in Qulian Technology's own development but also injects new vitality into the secure development of the entire blockchain industry. It is believed that Qulian Technology will continue to lead the advancement of blockchain security technology, contributing to the construction of a safer and more reliable digital world. Simultaneously, this technology paves the way for the application of federated learning in more industries, enabling safer and more controllable data interconnection.

This patent authorization is not only a recognition of Qulian Technology's technical strength but also strong support for its future development. The company will use this as an opportunity to continue cultivating blockchain technology and provide users with safer and more reliable products and services, contributing to the healthy development of the digital economy. It is believed that in the near future, Qulian Technology will achieve even more brilliant achievements in the blockchain field.