You are here

Xiaojun Guo

Beijing Office
Print Vcard


Patent Attorney since 2000

Attorney-at-Law since 2012

Technical Field:

Machine Building, Equipment and Technology of Machining, Construction and Mining, Transportation Vehicles and Engines, Textiles, Paper Making and Printing, Air-Conditioning and Refrigeration, Package Technology, Equipment and Technology of Food Processing, and Agricultural Machines


Chinese, English, Japanese and French

Education and Training:

Bachelor of Science in Textile Machine Design and Manufacture, China Textile University, 1997

Trained in a German law firm, Germany, 2001

Trained in an U.S. law firm, U.S.A, 2002

Study in Cardozo school of law in 2013

Professional Experience:

Patent Attorney, CCPIT Patent and Trademark Law Office since 1997

Deputy director of the mechanical department of CCPIT Patent and Trademark Law Office since 2006

Practice Area:

Mr. GUO's practice focuses mainly on patent prosecution in the mechanical field, including that for patent applications for inventions, utility models and designs. He has successfully represented many entities and individuals, including some major corporations, in patent prosecution for more than one thousand patent filings and prosecuting cases covering various technical fields, particularly the fields of daily commodities, hygiene products, textile, automobile vehicles, paper making and printing, mining, shipping, medical machine, and normal equipment and technology of machining. Mr. GUO has also represented clients in many patent reexamination cases, patent invalidation cases, patent litigation cases and Free to operate analysis in relation to inventions, utility models and designs. In addition, Mr. GUO has also drafted patent applications for clients and filed these patent applications in China and in many foreign countries based on his knowledge to foreign IP laws.

Professional Affiliation:

Member of All China Patent Agents Association (ACPAA)

Member of the Design Committee of ACPAA

Member of AIPPI (China)

Member of the Design Committee of IPO (U.S.A)


Author: “European Unitary Patent System”, Patent Agency, No. 4, 2016, Vol. 7;

Author: “Probing into the Rationale for the Conflicting Application Rule”, Electronics Intellectual Property, November 2016, issue 301;

Author: “Perspective of the Patent Evaluation Report: Substantive Examination upon Request and before Enforcement of the Patent”, China’s Foreign Trade, Sep. 2016, Issue 603;

Author: “A flexible approach to law making”, WIPR 9/10 issue;

Author: “China’s New Patent Infringement Trial Rules Become Effective - Introduction to the Judicial Interpretation (II) regarding Patent Infringement of the China’s Supreme People’s Court”, AIPPI (Japan), Vol. 61, No.8, 2016;

Author: “Means-Plus-Function Features Unavoidable”, China’s Foreign Trade, No. 7, 2016, Vol. 601;

Author: “Protection of Merchandising Rights in China”, China’s Foreign Trade, No.3, 2016, Vol. 555;

Author: “Tests for Infringement of a Registered Community Design - A brief introduction to the ‘Trunki’ case”, China Intellectual Property News, May 11, 2016, Issue 1712;

Author: “Do New Patent Infringement Trial Rules Really Benefit Design Protection in China?” Asia IP, May 2015;

Author:”Means-Plus-Function Features in Patent Infringement”, Patent Agency, No. 1, 2016, (Vol. 4);

Coauthor: “Essential Features of a Claim and the Technical Problem to Be Solved”, China Patents and Trademarks, No. 1, 2016 (Vol. 124);

Coauthor: Essential Features of a Claim and the Technical Problem to Be Solved, China Patents and Trademarks, No. 1, 2016;

Author: From Expert Witness to Expert Assessor - A Brief Review of the “Person with Expertise” in IP Litigation, China Intellectual Property News, December 9, 2015, Issue 1672;

Author: Limitation of Process Features to A Product Claim in Patent Infringement Cases, China Intellectual Property News, Oct. 21, 2015, Issue 1658;

Author: Overlapping of Patent Right with Other IP Rights - A View from the Copyright Infringement Case Xie Xinlin v. Ye Genmu and Haining Mingyang Foods Co. Ltd. Patent Agency, 2015, Issue 2;

Author:“Amendments to the Several Provisions of the Supreme People's Court on Issues Relating to Application of Law to Adjudication of Cases of Patent Disputes in China”, AIPPI (Japan), Vol. 60, No. 6;

Author: IP Courts in China, Jurisdictions and Prospects, AIPPI (Japan), Vol. 60, No.2., also published as "International Litigation”, IP Litigator, September/October 2015;

Author: Burden of Proof in an Infringement Litigation over a Patent for a Process of Manufacture in China , AIPPI (Japan), Vol. 60, No.10;

Author: "Policy Consideration in Assessing the Novelty of a U.S. Patent by Prior Public Use", China Patent Agency, No. 3, 2014;

Author: “Application of Issue Preclusion in Patent Claim Construction", China Intellectual Property News, No. 1575, August 6, 2014;


Author: "Is There a Foreseeability Limitation on the Doctrine of Equivalents?", China Intellectual Property News, August 6, 2014;

Author: Provisions on Filing Multiple Similar Designs in one Design patent application, Article Collections of ACPAA First IP Forum, 2010;

Author: Novelty and Inventive Step of a Design Patent under the Draft Chinese Patent Law, Development of Patent Agency and Innovation-oriented Nation-building By ACPAA, 2009;

Author: "Double Patenting" Practice for Designs Changing in China, AIPPI. Japan, 2007;

Author: New Changes in Handling a Partial Design Application in China, AIPPI. Japan, 2005;

Author: Interpretation of the Relationship Between "Comprehensive Judgment" and "Designing Key Point" Principles with Reference to Prior Designs, Design and IP Protection by Design Examination Department of SIPO, 2002.