ChinaCourt CasesCourtsEIP Coffee BreakEIP Patent 101 CornerprosecutionSupreme People's Court
19 August 2021

Do Invention and UM Patents Filed on the Same Day Rise and Fall Together?

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 similar cases in the future, so they are still worthy of attention.

One of the seminal cases ((2020) 最高法知民终699号) is very interesting. It involves a set of “same day applications”, i.e. an invention patent and utility model (UM) patent directed towards the same invention filed on the same day. The key issue is: if the invention patent application is rejected, what happens to the corresponding granted UM?

A Bit of Background

China allows patent applicants to apply for Invention and UM patents for the same invention on the same day (same-day applications). Typically the UM grants first (within 5-8 months), allowing the patentee to initiate license agreements or enforcement actions based thereon. Then later, when (and if) the time-consuming and costly invention application finally proceeds to grant, the applicant can obtain an invention patent’s longer 20-year protection term by giving up the UM patent (10 year term). Applicants welcome this dual application strategy, since it provides fast and comprehensive protection for product inventions.

Same Day Applications

In this seminal case, the applicant had obtained a granted UM earlier, but the corresponding invention patent application had been finally rejected, even after a re-examination request and administrative suit. Later the patentee initiated an infringement lawsuit based on the same-day UM patent which protects an identical technical solution. The first instance held in favor of the patentee. The SPC revoked the judgment of the first instance and held that in this case, the patent right for the utility model should be questioned.

Generally speaking, if a same-day invention application is rejected for lacking novelty, then the related same-day UM patent must also lack novelty, and thus will not meet the grant requirements. However, if the invention application is rejected for lack of inventiveness, then the judge cannot directly arrive at the same conclusion, since inventiveness requirements for invention patents and UMs are different.

We believe that this judgment is reasonable and will effectively reduce litigation costs in similar situations. We are of view that this judgment will not have significant impact on the same-day filing strategy for high-quality inventions.

You may refer to our previous article regarding same-day filing strategy.

(http://ipc.court.gov.cn/m/detail.html?id=1410)

About the Authors

Yolanda Wang is a Principal, Chinese Patent Attorney, and Chinese Patent Litigator at Eagle IP, a Boutique Patent Firm with offices in Hong Kong, Shenzhen, and Macau.

Jennifer Che, J.D. is Vice President and Principal at Eagle IP, a Boutique Patent Firm with offices in Hong Kong, Shenzhen, and Macau.

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.

Other Articles

Why Do Examiners Fail to Recognize the Importance of my “Parameter Features”?

28 May 2025
The Impact of Parameter Features on Inventiveness ”Parameter features” – numerical or mathematical expressions that define the quantity or physical properties of a subject – frequently appear as technical features within a claim. Often described as numerical ranges or measurements, they frequently play a critical role in addressing technical problems. However, in practice, Examiners and […]

The Secret Prior Art Trap: A Case Study on Conflicting Applications in China

13 November 2025
In patent prosecution, the concept of a "conflicting application" or “secret prior art” plays a critical role in determining the patentability of an invention. This article explores the framework for assessing conflicting applications under Chinese patent law, with a comparative perspective on the approaches adopted in the United States. Case Background: The Image Encoding Dispute […]
china-joins-two-wipo-treaties

China Joins Two WIPO Treaties, the Hague System and the Marrakesh Treaty

11 February 2022
It has been two challenging years, yet there are many reasons to still have hope. We wish you a blessed Lunar New Year as we welcome the year of the Tiger. We wanted to highlight a few new developments in China. China has joined the Hague System for the International Registration of Industrial Designs, submitting […]

Chinese Courts Cares More About Patent Quality Now (A Doctrine of Equivalents Story)

13 December 2022
There is no doubt that the drafting quality of a patent can be crucial in determining the success (or failure!) of the patent during litigation. However, due to various reasons, patents often fail to use the right drafting strategies that best protect the invention. Too often, inexperienced or unsophisticated patent drafters merely listen to an […]

Our Past Events

Top crossarrow-right