Years in Patent Practice
Hands-on intellectual-property and patent practice since 2002.
LEO LIU · CROSSVISION IP
Patent & IP Subject Matter Expertise for AI Training, Evaluation and Cross-Border Practice
Leo Liu is a Chinese Patent Agent and senior patent practitioner with 24+ years of hands-on experience across Chinese patent law, CNIPA examination, patent drafting, prior-art analysis, patentability, infringement assessment and cross-border patent practice.
He brings practitioner-level judgment to AI training and evaluation projects, particularly where accurate legal reasoning, technical interpretation, claim analysis, Chinese patent law or multilingual patent expertise is required.
Chinese Patent Law · CNIPA · Patent Claims · Prior Art · AI Evaluation · USPTO/EPO · Chinese ↔ English
Available for remote, project-based and expert-network engagements.
Chinese Patent Agent Qualification
More than two decades of professional patent drafting, prosecution and analysis experience.
Cross-System Patent Experience
Experience working across Chinese and international patent prosecution and risk-analysis workflows.
Multilingual Patent Expertise
Professional review of Chinese- and English-language patent specifications, claims, Office Actions and technical materials.
Original IP Articles
Practitioner-focused analysis covering patent prosecution, cross-border IP risk, litigation developments and international patent practice.
Technical Investigation & IP Dispute Work
Selected for expert, technical-investigation and dispute-resolution roles within China's intellectual-property protection system.
AI TRAINING & EVALUATION
Where Patent Expertise Meets AI Evaluation
High-quality legal AI requires more than fluent language. Patent questions often depend on claim structure, technical disclosure, prior art, prosecution rules, jurisdiction-specific standards and the difference between a plausible answer and a legally supportable one.
Leo applies senior patent-practice judgment to the review and evaluation of AI-generated patent and intellectual-property content.
AI Output Evaluation
Review AI-generated answers for legal and factual accuracy, technical consistency, completeness of reasoning, omitted claim limitations, incorrect prior-art mapping, unsupported assumptions and hallucinated conclusions.
Expert-Level Patent Tasks
Evaluate tasks involving novelty, inventive step, patentability, claim interpretation, prior art, claim drafting, Office Action reasoning, infringement, validity and freedom to operate.
Evaluation Frameworks
Support expert-review workflows through gold-standard answers, scoring criteria, evaluation rubrics, expert question design, error classification and human validation of AI outputs.
CORE DIFFERENTIATOR
Deep Experience in Chinese Patent Law and CNIPA Practice
AI systems operating across jurisdictions require local legal and procedural expertise. Leo has worked in Chinese patent practice since 2002 and has extensive hands-on experience with CNIPA prosecution, patent drafting, examination analysis, prior art, claim amendments and cross-border patent matters.
Chinese Patent Law
Patentability, claim scope, disclosure and examination issues within Chinese patent practice.
CNIPA Examination Practice
Novelty, inventive step, clarity, support, sufficiency of disclosure and amendment issues.
Inventive-Step Analysis
Structured analysis of prior art, distinguishing technical features, technical effects, technical problems and motivation.
Patent Drafting & Claims
Drafting, reviewing and restructuring specifications and claims across multiple technical fields.
PCT & Cross-Border Practice
Chinese-originated international filings and foreign-originated PCT applications entering China.
CNIPA · USPTO · EPO · PCT
Cross-Border Perspective Built from Practice
Patent reasoning does not operate identically across jurisdictions. Claim amendments, prior-art analysis, disclosure standards and prosecution strategy can differ materially between CNIPA, USPTO and EPO practice.
USPTO Practice Support
Office Action analysis, claim-feature mapping, amendment-option review, §101 / §102 / §103 / §112 issues, prosecution-history analysis and draft response support for qualified U.S. counsel review.
EPO Practice Support
Novelty and inventive-step analysis, problem-solution reasoning, claim amendments, examination responses and support for European counsel.
FTO, Infringement & Validity
Claim charts, all-elements analysis, prior-art mapping, infringement assessment, design-around analysis and validity-support work.
Chinese ↔ English Patent Review
Translation and adaptation of patent specifications, claims and prosecution materials with attention to both technical meaning and legal effect.
PRACTITIONER · TECHNICAL INVESTIGATOR · IP EXPERT
Experience Beyond Routine Patent Prosecution
Leo's professional work extends beyond patent application drafting and prosecution. He has served in expert and public-interest roles involving patent enforcement, infringement analysis, dispute resolution and overseas IP risk.
Technical Investigation Officer
Technical analysis supporting intellectual-property administrative enforcement, including patent-claim analysis, technical-feature comparison and infringement assessment.
IP Expert Appointments
Selected for provincial and regional intellectual-property expert pools and overseas IP dispute-response programs.
Trade Fair IP Enforcement Support
On-site intellectual-property complaint investigation and expert support at the Canton Fair and other major trade exhibitions.
IP Dispute Mediation
Mediator and invited mediator in intellectual-property dispute-resolution programs.
EXPERT ENGAGEMENTS
Available for Global Collaboration
CrossVision IP supports professional and project-based engagements where senior patent and IP judgment is required.
AI Companies & Model Teams
Patent, intellectual-property and Chinese-law subject-matter expertise for model training, evaluation and expert review.
AI Data & Expert Platforms
Domain-expert projects involving legal reasoning, response evaluation, benchmark development, gold answers and rubric creation.
LegalTech Companies
Patent-workflow evaluation, domain validation, multilingual patent-data review and AI-assisted legal-product testing.
Expert Networks & Recruiters
Remote subject-matter expert engagements involving Chinese patent law, CNIPA practice, patent analysis and cross-border IP.
Law Firms & Patent Counsel
Senior-level prosecution, claim analysis, FTO, translation and backend patent support for counsel-led matters.
Corporate IP Teams
Cross-border patent analysis and risk support for Chinese businesses operating internationally.
CROSSVISION IP INSIGHTS
Patent Practice, Explained by a Practitioner
CrossVision IP publishes practitioner-focused analysis on U.S., European and Chinese patent practice, cross-border IP disputes, FTO, prosecution strategy and the growing role of AI in intellectual-property work.
Leo has published 290+ original professional articles for the Chinese IP and cross-border business communities.
USPTO Practice
PIER Pilot Program: What PCT National-Phase Applicants Must Know
The early choices, PTA implications and signing-authority issues that applicants and counsel need to assess.
Read insight →Office Action
Navigating § 112(a) New Matter Issues
A practical guide to examiner burden, written-description analysis and prosecution options.
Read insight →Patent AI
One AI Drafted It. Another AI Reviewed It. Why Was the Patent Lawyer Still Disciplined?
A new USPTO discipline order shows why a second AI is not source verification when patent citations must be checked against the intrinsic record.
Read insight →WORK WITH LEO
Need Senior Patent Judgment for an AI or Cross-Border IP Project?
Whether you are building or evaluating a legal AI system, sourcing a Chinese patent-law expert, reviewing patent reasoning or managing a complex cross-border patent matter, CrossVision IP provides direct access to senior practitioner-level expertise.
Based in Shenzhen, China · Available for Global Remote Engagements