Kaiyuan Song

Senior Patent Attorney

Patent

Primary office

Beijing

Telephone

Practice focus

Patent

Experience

Mr. Song has been with East IP since 2007, with a professional background in civil and automotive engineering. Over the past 17 years, Mr. Song has accumulated extensive practical experience in a wide range of fields, including mechanical and electromechanical controls.

Mr. Song primarily focuses on patent issues related to Japanese patent applications being filed inbound into China or Chinese patent applications being filed in Japan, dealing with office actions (OA), reexamination, and various complex administrative actions. Mr. Song also actively participates in FTO investigations, EOU investigations, design infringement analysis, invalidation cases, and other complex aspects of IP in the patent area.

Work Highlights

Filed a request for declaration of invalidation relating to a patent on behalf of a Japanese client, and successfully invalidated the entire patent.
Filed a request for invalidation relating to a design on behalf of a Japanese client, and successfully invalidated the design.
Handled an invalidation case relating to a design on behalf of a Japanese client, and successfully defended client’s design patent in the action.

Education

Bachelor’s Degree, Civil Engineering, Shenyang Jianzhu University
Master’s Degree, Civil Engineering, Shenyang Jianzhu University

Admissions

Patent Attorney
ACPAA Recommended Patent Litigation Attorney

Languages

Mandarin Chinese (native)
Japanese (fluent)

Recent Insights

Introduction to the “Guidelines for Patent Applications Involving Standards”

On March 14, 2026, the China National Intellectual Property Administration (CNIPA) released the "Guidelines for Patent Applications Involving Standards" (hereinafter referred to as the...

2025 China Patent Survey Report

On April 1, 2026, the National Intellectual Property Administration released the “2025 China Patent Survey Report”, which was based on the patent survey and...

Research on the Criteria for Subject Matter Eligibility of AI-related Inventions

Based on the latest 2025 revision of China's Patent Examination Guidelines, this paper employs empirical analysis of typical cases to delve into the "three-step...