Our vision: To provide professional, responsive, and cost-effective intellectual property legal services in China.
Yu Chunbo is a practicing lawyer and patent attorney specializing in intellectual property (IP) legal services. He holds professional qualifications as an Intellectual Property Specialist and engineer and is currently the Director of the IP Department at Beijing Xuanyan Law Firm.
Yu Chunbo has many years of experience in legal services, primarily focusing on litigation and non-litigation legal services related to IP, including patents, trademarks, trade secrets, and new plant varieties. He represents clients in litigation cases involving IP infringement (civil and administrative disputes) and non-litigation cases such as patent invalidation requests, patent FTO analysis——
02.05.2026
Recently, attorney Yu Chunbo received a letter of appreciation from the Capital Intellectual Property Services Association. Attorney Yu Chunbo will continue to focus on public welfare lectures, contributing his modest efforts to raising public awareness of intellectual property protection.
02.08.2026
Typical Case：
Intellectual Property Infringement Litigation and Legal Basis
02.08.2026
Typical Case：
Defense Strategies of Third Parties in Patent Invalidation Administrative Disputes
02.09.2026
Can the background technology in patent documents be used to evaluate novelty and inventiveness?
Yu Chunbo, The Chinese version was first published on iprdaily.cn, Date: January 4, 2026
02.09.2026
Comparative Study of the Functions of USPTO Patent Search Tool PPUBS
Yu Chunbo,Li Ying,The Chinese version was first published on China Invention & Patent (Journal of Intellectual Property Information Science) ，Volume 20, Issue 3，March 2023
02.09.2026
Protecting Trade Secrets: Don’t Be “Belatedly Aware”
Yu Chunbo , The Chinese version was first published on China Intellectual Property News, Page 11, Date: October 11, 2023