Approved by CNIPA · Agency Code 34408

Hefei Zhihai Yida Patent Agency (General Partnership)

Zhihai Yida — Safeguarding Your Innovation

Agency Code: 34408 Unified Social Credit Code: 91340100MADQA4AT0W Managing Partner: Wang Lili
  • ✓ Selected for the Patent Precision Service Guarantee Whitelist (Feb 2026)
  • ✓ Qualified for patent preliminary examination at all IP Protection Centers nationwide
  • ✓ Priority examination available for qualifying cases
  • ✓ "Technology + Law + Language" three-dimensional professional service framework
10+
Years of Experience
100+
Clients Served
3
Tier Review System
4
Languages for Intl. Service

Our Services

Comprehensive IP services covering patents, trademarks, copyrights, and litigation — empowering enterprises to secure, utilize, and protect their rights

Patent Services

Invention/utility model/design patent applications, PCT international filings, national phase entries, search & analysis, portfolio strategy, Office Action responses, reexamination, invalidation, annuity monitoring

Patent Translation

Multilingual patent translation and proofreading (CN/JP/EN/KR), with expertise in patent law differences and documentation standards across jurisdictions

Patent Search & Analysis

Patentability search, FTO (freedom-to-operate) analysis, infringement analysis, patent landscaping and competitive intelligence.

Trademark & Copyright

Trademark registration, renewal, modification, assignment, opposition, invalidation; copyright registration, software copyright registration, IP customs recordation

Patent Portfolio Planning

Patent application strategy, portfolio structuring, and lifecycle management based on technology roadmap and market objectives.

Training & Consulting

Patent technology communication, patent mining training, IP diagnostics and other localized services with prompt response and practical implementation

About Zhihai Yida

Hefei Zhihai Yida Patent Agency (General Partnership) is a professional service organization approved by CNIPA, with legitimate patent agency qualifications. Agency Code: 34408.

In February 2026, recommended by the All-China Patent Attorneys Association and approved by CNIPA, the firm was officially selected for the Patent Precision Service Guarantee Whitelist, granting eligibility to provide patent preliminary examination services at all IP Protection Centers nationwide.

Our team comprises senior patent attorneys, IP lawyers, patent engineers, process control specialists, and multilingual translation experts. All core members hold patent attorney qualifications, with some additionally holding lawyer qualifications and master's degrees in science and engineering.

Meet Our Team →

Core Qualifications & Capabilities

Registered with CNIPA
Patent Agency Code 34408
Patent Precision Service Guarantee Whitelist
Selected in February 2026
IP Protection Center Preliminary Examination Qualification
Patent preliminary examination services at IP Protection Centers nationwide
Foreign-Related Service Capability
Multilingual (CN/EN/JP/KR) foreign-related patent services

Free Patent Annual Fee Monitoring

Leave your patent number and we will remind you by email before the annual fee is due (email required). Setup completed within 3 business days. Separate multiple patents with commas or semicolons (full-width or half-width).

Batch upload patent numbers (download template)⬇ Download CSV template

Template format: column 1 "Patent No.", column 2 "Email" (required), column 3 "Mobile" (optional), column 4 "Applicant" (optional). .csv / .xlsx / .ods supported, up to 100 patents per upload. If you need more than 100, please contact us (Tel 17605608891 / email patent@zhihaiyida.com).

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Contact Us

Whether you need patent applications, portfolio analysis, or IP enforcement consulting, we welcome your inquiry.

Office Address
Room 312, Building 3, Tianyuan Dike Technology Park, Yunfei Road, Changning Community, High-Tech Zone, Hefei, Anhui

Free Consultation

Leave your contact details and we will reach out within 1 business day with an initial IP strategy recommendation.

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NOW FREEFree patent annuity monitoring is live — just enter a patent numberPayment deadlines tracked automatically, email alerts at 30 / 7 / 1 daysSurcharge, restoration window and lapse risk flagged stage by stageSourced from the CNIPA patent examination information systemNo case limit, free forever◆Free patent annuity monitoring is live — just enter a patent numberPayment deadlines tracked automatically, email alerts at 30 / 7 / 1 daysSurcharge, restoration window and lapse risk flagged stage by stageSourced from the CNIPA patent examination information systemNo case limit, free foreverSubscribe →Free annuity watchDeadline alerts · always free