Serving businesses and professional teams from China.
CNIPA-registered patent agency · Code 44351
China patent and trademark services for global businesses and IP firms
Zhiquan IP is a CNIPA-registered patent agency based in Shenzhen. Ask us to handle a China patent filing, PCT national-phase entry, trademark registration, design patent or patent annuity, with a named English-speaking contact throughout the work.
Tell us what you need, where the matter stands and any known deadline. We will reply with the next step and document list.
Founder-led China IP work Peter Lin · Founder and Partner
Working review 
China IP project review Use the code to verify the registered patent agency.
With coordination across Shenzhen, Chengdu and Wuxi.
Verify Zhiquan IP
Review the registered name, agency code and verification guidance.
View credentials →Who we work with
Choose the route that matches what you need in China
Start with your role and the task in front of you. Each route explains the relevant services and what to send first.
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Foreign IP firms
Send China filing, prosecution, recordal and portfolio instructions in English and receive clear updates from a named contact.
Learn more →International businesses
China patent, trademark, PCT, design and related protection work for market entry, manufacturing and portfolio management.
Learn more →International project and legal teams
Get China IP support for product launches, transactions, supplier relationships and potential disputes.
Learn more →Patent owners and annuity teams
Check the status, deadline and amount for a China patent annuity, or ask for payment assistance.
Learn more →What we handle
China patent, trademark, design and annuity services
Choose a service to see when it can help, what to prepare, how the work proceeds and what happens next.
TM
China trademark registration
Trademark searches, applications, examination responses and selected post-filing procedures in China.
View China trademark services → PTChina patent filing
Invention and utility-model filings, examination responses and prosecution of existing China applications.
View China patent services → PCTPCT national phase
Enter the China national phase, prepare the required documents and translations, and continue prosecution.
View PCT China services → DSChina design patents
China design patent applications for product appearance, including drawing and filing-document review.
View design patent services → IPChina IP dispute assessment
Identify the rights, evidence, deadlines and practical China options for a potential dispute.
Request a dispute assessment → AFChina patent annuities
Check a China patent record, annuity deadline and amount before deciding whether to pay.
Ask about a patent annuity →Representative work
Review the work-sample publication record
Samples appear only after public-number, handling-role, claim and privacy checks. A sample is evidence of one record, not a success-rate claim or outcome guarantee.
PT
China patent filing samples
All 45 supplied patent documents completed publication, privacy and Zhiquan-handling review and are approved for public release.
View approved patent samples → TMChina trademark registration samples
All 107 supplied registration certificates completed publication, privacy and Zhiquan-handling review and are approved for release.
View approved trademark samples →China patent annuities
Check the status, deadline and amount before you pay
Send us the China patent number and tell us what you need to confirm. We will check the available record and explain the status, deadline, amount and next step.
- Check the patent record and current annuity position.
- Confirm the applicable deadline and amount.
- Arrange payment assistance if you decide to proceed.
Checked by our team Send the China patent number
We will tell you what the available record shows, the applicable deadline and any payment requirements.
How the annuity service works →How we work
Tell us the issue, agree the work, then receive updates and results
You know what we will handle, what it costs and who to contact before the work begins.
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Tell us what you need
Share the objective, current stage, relevant rights and any known deadline.
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Confirm the work and fee
We explain what we can handle, what documents are needed, the fee and who will be your contact.
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We handle the China work
Once you approve the work, we begin the filing, prosecution, review or other agreed service.
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Receive updates and results
We tell you about important developments, deadlines, results and the next action.
Why Zhiquan
A registered China agency with a named English-speaking contact
You can verify Zhiquan’s CNIPA patent-agency registration, speak with a named contact in English and receive clear updates on your China IP work.
About Zhiquan IPRegistered institution
Zhiquan is a CNIPA-registered patent agency established in 2015. Agency code 44351 can be checked through official information.
China filing and prosecution
Our service pages cover patent, PCT, trademark, design and related China procedures handled under specific instructions.
A named English-speaking contact
International businesses and IP firms can discuss the work, documents, deadlines and updates in English.
China IP Gateway
China IP Gateway provides an international inquiry and coordination touchpoint. Zhiquan IP may handle agreed China IP work for selected instructions.
Practical Answers and Insights
Practical guidance for China filing and protection decisions
Read focused explanations of China patent, trademark, supplier and portfolio questions, with Founder and Partner Peter Lin as a named contributor.
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One content hub, two ways to read
Start with a direct answer, then open a related Insight when you need broader context, procedures and common-risk analysis.
Browse answers and insights →Meet Peter Lin
Meet Zhiquan’s Founder and Partner and learn about his experience at Foxconn, Tencent and Midea.
View profile →Contact Zhiquan IP
Discuss a China patent, trademark or portfolio need
Tell us what you need to file, protect, renew or resolve in China, along with the current stage and any known deadline. We will reply with the next step.