Can Post Filing Data Overcome Inventive Step in China?
Since 2010, the Patent Re-examination Board (PRB) has published the top 10 patent invalidation cases of the year in April of each year. The selection criteria are high social concern, significant impact on the related industry, or involve difficult legal issues and important examination criteria. Below is one of the top 10 cases that discusses post filing data in China patents.
Post Filing Data in China
Can post-filing data showing unexpected technical effect be used to overcome inventive step if the specification contains no data but asserts the unexpected technical effect?
In short, the answer is no, post-filing data cannot be used to overcome inventive step even if the idea was asserted if the original data was not in the application.
Novartis’s Chinese patent (201110029600.7) claimed the combination of AT 1-antagonist valsartan and NEP inhibitor Sacubitril. The specification asserted that the combination of the two drugs had synergistic effect, yet provided no data at the time of filing.
The PRB sided with petitioner Dai Jinliang and argued that one of skill in the art could not predict that the combination would be synergistic without experimental data. In other words, applicants had not solved the technical problem of providing a pharmaceutical combination with synergistic effects. At most, applicants had provided a pharmaceutical composition for treating hypertension. In January of 2018, the PRB declared that the Novartis patent was invalid.
In our experience, if experimental data is in the application as filed but another piece of prior art is cited during prosecution, the applicant may submit post-filing data showing results of comparison studies with the newly discovered art, provided that the original data for applicant’s invention was already disclosed in the application as filed.
About the Author
Jennifer Che, J.D. is a US Patent Attorney and Vice President and Partner at Eagle IP, a Boutique Patent Firm with offices in Hong Kong, Shenzhen, and Macau.[email protected]This article is for general informational purposes only and should not be considered legal advice or a legal opinion on a specific set of facts.
其他文章
China Provides Specific Directions to Strengthen Patent / Technology Protection from 2020 to 2021
2020年4月23日
China continues to progress towards its major goal of significantly strengthening IP protection within its borders. Last year it announced several proposed amendments to its patent laws. In January 2020 China and the US signed the Economic and Trade Agreement between the Government of China and US (published 16 January 2020 –“Trade Agreement”), which detailed […]
閱讀更多 >
Miss the 12-month Filing Deadline? China Finally Allows Patent Applicants to Restore, Add, or Correct a Priority Claim
2024年4月15日
Three major 'remedial’ systems taken from the PCT Regulations have been introduced in the third revision of the Implementation Regulations of the Chinese Patent Law in 2023 (hereinafter referred to as the "Implementation Regulations"). We previously discussed one of these remedial systems, Incorporation by Reference based on Rule 45 of the Implementation Regulations, which allows […]
閱讀更多 >
IP Strategies for the Newly Released Implementation Regulations of the 4th Amendment of the Chinese Patent Law: Part 1: Delayed Examination
2024年1月25日
December 2023 appears to have been an exceptionally busy and fruitful month in the China patent space. Following the State Council’s approval of the long-awaited Patent Law Implementation Regulations (“Regulations”, similar to the CFR in the US) in November, the CNIPA finally made public the full text of the Regulations just before the arrival of […]
閱讀更多 >
Do Invention and UM Patents Filed on the Same Day Rise and Fall Together?
2021年8月19日
Snippets of Court Cases, Provisions, and Key Observations about China’s IP Landscape Seminal Cases by the SPC Recently, the Intellectual Property Division of the Supreme People's Court (SPC) issued a list of seminal (精品) cases. Although China is not a case law country, such seminal cases issued by the SPC have high guiding impact for […]
閱讀更多 >
我們過去活動
Dr. Jacqueline Lui, Ms. Pauli Wong, and Mr. Eddie Ho Named Patent Stars by ManagingIP
2025年6月13日
Eagle IP Ranked Among Top Tier Firms in IAM Patent 1000
2025年6月12日
Jennifer Che from Eagle IP to Attend BIO 2025 in Boston!
2025年6月11日
Insights from HKSTP Market Discovery - BIO Connect
2025年5月28日
HKMHDIA Medical Fair Forum
2025年5月27日
Celebrating Innovation at the Asia Summit for Global Health
