This inventor holds 1 USPTO granted patent. Top assignees: Electric Power Research Institute, China Southern Powerr Grid, Guizhou Power Grid Co., Ltd. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 1 
1 out of 4 Years Active: 2026
Title: Zilong Ran and Blockchain-Based Timestamp Generation.
Introduction
Zilong Ran is an inventor associated with Guiyang, China. His patent work addresses how to create timestamps for file records while reducing reliance on a trusted third party that could expose recorded information.
Latest Patents
The provided information lists one patent for Ran: “Timestamp Generation Method and Apparatus, and Electronic Device and Storage Medium.” The invention describes calculating a hash value for a file record and sending it to a random issuer. The issuer signs the hash together with the time it received the hash, then the resulting signature is stored on a blockchain as the file record’s timestamp. This approach is intended to help address the risk of information leakage associated with traditional timestamp authorities. Ran is credited with 1 patent in the supplied data.
Career Highlights
The supplied career information associates Ran with Guizhou Power Grid Co., Ltd. and the Electric Power Research Institute of China Southern Power Grid. His listed patent focuses on timestamp generation, electronic devices, and storage media.
Collaborations
Zhenghao Gao and Xiaoming Lin are identified as Ran’s coworkers in the supplied information.
Conclusion
Zilong Ran’s listed invention applies blockchain-based storage to timestamp generation, aiming to provide a way to verify file records without relying on a conventional trusted timestamp authority.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile