Examination View
Team Member / Former Patent Examiner
Guan Shitao
Guan Shitao is a member of Ma Su Team with more than 20 years of experience in the intellectual property industry. His work spans patent examination, patent agency services, industry research, quality control, and team management. He combines an official examination perspective with market-facing IP service experience.
He previously served as a substantive patent examiner and assistant section director in the Optoelectronics Department of the Patent Examination Cooperation Guangdong Center under CNIPA's Patent Office. He is now executive partner for domestic IP services at Beijing Qingkong Zhiyun Intellectual Property Agency.
阅读中文介绍20+ yearsIP industry experience.
500+ casesPatent examination closures.
Former examinerNational-level patent examination institution.
FTO-readyClaim-to-product feature comparison.
Professional Positioning
A composite IP professional combining examination, agency practice, quality control, and team leadership.
Guan's value lies in connecting examiner-grade feature comparison, client-facing patent service, difficult-case analysis, and quality-management experience. This combination supports more practical patent filing, FTO, portfolio layout, and risk-assessment work for companies.
Technical Fields
Mechanical, electrical, optoelectronic measurement
He has long handled patent cases involving measurement and testing, mechanical products, and electrical technologies, with strength in technical decomposition, search, claim reading, and technical-effect analysis.Quality Control
Quality review and difficult-case panel experience
He served as a departmental examination-quality assurance member and leader of a mechanical quality-inspection group, and participated in panel review of complex patent applications.Market Service
Executive partner and service-system builder
He now manages core domestic IP agency work, team operations, business coordination, and client-service systems, translating examination rules into practical filing, portfolio, and risk-control solutions.Career Experience
Professional Background
- February 2012 - February 2017: Patent Examination Cooperation Guangdong Center, Patent Office of CNIPA, Optoelectronics Department. Substantive patent examiner and assistant section director. Responsibilities included substantive examination of invention patents in measurement and testing, business training, task coordination, onboarding guidance, quality inspection, and difficult-case panel review.
- July 2020 - present: Beijing Qingkong Zhiyun Intellectual Property Agency, Domestic Department. Executive partner. Responsibilities include domestic patent agency operations, team management, business coordination, client-service-system construction, patent filing, reexamination, difficult-case analysis, and IP portfolio work.
Examiner-Grade Comparison
Why this background fits FTO and difficult patent analysis.
FTO is not simple patent searching. The key is to compare product features against patent claim features in target jurisdictions. Guan's substantive examination training makes him well suited for claim reading, technical-solution decomposition, distinguishing-feature analysis, and design-around assessment.
Portfolio and Service
From examination rules to client strategy.
In market-facing agency practice, Guan connects examination standards, industry policy signals, and client business goals, helping companies make better decisions across filing quality, grant path, risk control, and patent portfolio structure.
Core Strengths
Professional Strengths
- Dual background in official patent examination and market-facing IP agency services, with familiarity in examination procedure, standards, review logic, and industry rules.
- Deep experience in mechanical, electrical, optoelectronic measurement and testing technologies, with more than 500 examined patent cases completed during his examination tenure.
- Passed CNIPA Patent Office advanced search and reading examination; previously recognized as assistant researcher and level-8 examiner.
- Experience in patent search, technical analysis, examination quality control, team training, business coordination, and industry research projects.
- Supports patent filing, reexamination, FTO, patent portfolio planning, risk assessment, and full-chain IP solutions for enterprises.