Profile

Mr. Hai Liu, a senior patent agent at Cheng & Peng, brings nearly 20 years of extensive experience in the patent field, with a particular emphasis on foreign-related patent matters. Throughout his distinguished career, he has amassed comprehensive industry knowledge and demonstrated exceptional proficiency in core areas such as patent applications, intellectual property strategic planning, and patent portfolio management.

Mr. Hai Liu’s expertise spans a wide range of high-tech sectors, including organic chemistry, medicinal chemistry, biotechnology, biopharmaceuticals, microbial fermentation technology, biological instruments, and agricultural technology. With a deep understanding of these disciplines, he accurately identifies key technical aspects and delivers thorough, professional patent services to both domestic and international clients, ensuring robust and efficient intellectual property protection.

As a seasoned Chinese patent agent, Mr. Hai Liu possesses over a decade of specialized experience in foreign-related patent agency work. His tenure at prominent foreign-related patent agencies has equipped him with extensive industry insights and practical operational expertise. He provides comprehensive, one-stop patent services across diverse technical fields, offering expert support from initial patent application to subsequent maintenance.

In patent application practice, Mr. Hai Liu has achieved remarkable success, having successfully represented hundreds of applications. He excels in drafting patent application documents for complex technical subjects, managing the entire application process with meticulous care. This includes precise drafting and submission of application documents, professional responses to office actions, and adept handling of reexamination and invalidation proceedings. He proactively identifies and mitigates potential legal and technical risks, safeguarding clients' intellectual property and maximizing their protection.

In corporate patent services and consulting, Mr. Hai Liu showcases exceptional professional capabilities. He provides strategic patent layout recommendations, assisting clients in comprehensive intellectual property protection from concept inception to product commercialization. He is particularly skilled in patent mining and landscaping, patent information retrieval and analysis, and patent infringement risk assessment and management. Committed to a client-centric approach, he prioritizes building strong client relationships. By understanding each client's unique needs and business objectives, he develops tailored patent protection solutions to optimize their commercial value.

In the realm of international patent affairs, Mr. Hai Liu has accumulated substantial practical experience. He has represented numerous renowned multinational corporations, universities, and research institutions in Chinese patent applications and related matters. His solid professional knowledge, rigorous work ethic, and meticulous service have earned him high praise and established him as a trusted and indispensable partner in international intellectual property matters.

Representative Matters

Assisting a Chinese bioinstrumentation company in drafting key patent applications relating to nanopore sequencing technology, handling PCT international applications and prosecution in China, the United States and Europe, and conducting FTO searches and infringement risk analyses for related products in China and the United States.
Handling PCT international applications and patent filing and prosecution in China, the United States and Europe for a Chinese cell therapy company, covering fully human antibodies and chimeric antigen receptors targeting CD5.
Handling multiple coronavirus vaccine patent applications for a Chinese vaccine company, including Chinese filing, prosecution and reexamination, PCT international applications and national phase filings in multiple jurisdictions.
Handling key Chinese patent applications for a listed Chinese biopharmaceutical company involving HER3 antibody-drug conjugates and EGFR/HER3 bispecific antibody-drug conjugates.
Drafting patent applications and handling filing matters for a Chinese biotechnology company, covering three-dimensional stem cell culture, three-dimensional porous microcarriers, cell culture bioreactors and exosome isolation.
Drafting patent applications and handling filing matters for a Chinese gene delivery technology company, covering lipid nanoparticles, peptoid-lipid conjugates and oligonucleotide delivery.
Contributing to the drafting and multi-jurisdictional prosecution of multiple patent applications for a Chinese biotechnology group, covering antibodies, peptide conjugation, gene synthesis, and nucleic acid preparation and purification.
Handling patent prosecution and responding to office actions across multiple jurisdictions for a Chinese innovative drug company, involving small-molecule kinase inhibitors and their polymorphs.
Handling patent filing and prosecution for a Chinese pharmaceutical company, covering ligand-conjugated therapeutics for targeted delivery and thyroid hormone receptor beta (THRβ) agonists.
Drafting patent applications and handling subsequent patent matters for two Chinese biopharmaceutical companies, covering drugs for neurodegenerative diseases.
Assisting a Chinese biopharmaceutical company with PCT international applications for anti-PD-1 antibodies and reviewing the English-language application documents.
Handling Chinese patent filing and prosecution for a Chinese pharmaceutical company to protect core BTK inhibitor compounds, with the related Chinese invention patent granted.
Contributing to the drafting and multi-jurisdictional prosecution of multiple patent applications for a Chinese research university, covering protein engineering, engineered cytokines, cancer immunotherapy and proteomics.
Handling patent drafting, PCT international applications and prosecution across multiple jurisdictions for a Chinese national research institute and related industrial entities, covering microbial fermentation, enzyme engineering and rare sugar biomanufacturing.
Assisting a Chinese research team with drafting a Chinese patent application for pyrosequencing-based methods and kits for HIV drug resistance analysis, with the related invention patent granted.
Representing a well-known U.S.-headquartered chemical company and handling more than 60% of its patent applications in China, including drafting PCT applications in English.
Representing a U.S. biopharmaceutical company in a series of Chinese patent applications for pulmonary disease therapeutics and formulations, contributing to application document review, claim amendments and related prosecution matters.
Assisting with substantive examination matters in the Chinese national phase of PCT applications relating to small-molecule drugs for a U.S. multinational pharmaceutical company.
Assisting with substantive examination matters in the Chinese national phase of PCT applications relating to veterinary drugs for an international animal health company.
Assisting a U.S. national medical research institution with Chinese patent applications involving long-acting drug formulations, peptide therapeutics, cancer diagnostics and small-molecule drugs, including application document review and prosecution support.
Assisting a research foundation associated with a U.S. university with Chinese patent applications in CAR-T cell therapies and targeted anticancer drugs, including application document review and claim amendments.
Assisting a U.S. university with Chinese patent applications for extracellular vesicles and their therapeutic uses, including application document review, claim amendments and responses to office actions.
Assisting a U.S. biomedical research institution with Chinese patent applications involving RNA recombination and viral vectors, including application document review and divisional filings.
Assisting Japanese universities and national research institutions with Chinese patent applications for fluorescent probes for detecting enzyme activity, including application document review and claim amendments.
Assisting South Korean pharmaceutical companies and research institutions with Chinese patent applications for GLP-1 receptor agonists and anticancer drugs, including application document review and claim amendments.
Assisting overseas universities and pharmaceutical companies with Chinese patent applications for low-molecular-weight heparin synthesis technologies, including the review and finalization of application documents.
Providing long-term support to overseas universities, research institutions and companies on Chinese national phase entry of PCT applications, including application document review, claim amendments and responses to office actions.
Assisting a Chinese biopharmaceutical company in seeking invalidation of a patent concerning PEG-modified protein therapeutics, contributing to the drafting of the invalidation request and supplemental submissions.
Contributing to selected aspects of case analysis in support of a Chinese diagnostics company's request to invalidate a third-party Chinese patent concerning cancer diagnostics.

Education

Tsinghua University, Bachelor of Science in Chemistry, 1999
Tsinghua University, Master of Science in Organic Chemistry, 2002
Ohio State University, USA, Master of Science in Biochemistry, 2005

Qualifications

Chinese Patent Agent Qualification, 2011

Practices

Patent Application, Patent Litigation, Due Diligence

Industries

Organic Chemistry, Pharmaceutical Chemistry, Biotechnology, Biopharmaceuticals, Microbial Fermentation, Bio-Instruments, And Agricultural Technology.

Languages

Chinese (native) and English

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