How to make the best use of a cease & desist letter?

Managing IP is part of Legal Benchmarking Limited, 1-2 Paris Gardens, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

How to make the best use of a cease & desist letter?

In China, the cease and desist letter is commonly used to warn infringers. Experience showed that you may have 50% of chance to get a reply to your cease and desist letter. The cease and desist letter usually works well with straightforward counterfeit case and against small infringers. When it comes to complicated case and big infringer, it is critical that you carefully evaluate the risk of being sued before sending out the cease and desist letter.

The recognition of non-infringement lawsuit:

The recognition of non-infringement lawsuit was first accepted in a patent case in 2002. Then Article 18 of the SPC's Judicial Interpretation on Several Issues Concerning the Hearing of Patent Infringement Cases (2010) set up the procedural requirements: 1) the right owner sends the cease and desist letter; 2) the recipient urges the right owner to file the civil lawsuit; 3) the right owner does not withdraw the cease and desist letter or does not file the civil lawsuit within a reasonable period; 4) the recipient can then file a recognition of non-infringement lawsuit.

Now, the recognition of non-infringement lawsuit extends to all IP cases, and the courts are lowering the procedural requirements: the recipient is sometimes allowed to file a lawsuit as soon as it receives the cease and desist letter.

The biggest inconvenience of being sued for non-infringement is that, you lose the control of the lawsuit: 1) you have no more choice of the jurisdiction which is very important in a lawsuit strategy; 2) you have limited time to prepare the evidences, and sometime even worse, the evidences will disappear if you did not secure them before sending the cease and desist letter.

In the Honda case (selected in the 2015 top ten IP cases by the SPC), Honda sent cease and desist letter to Shuanghuan, a Chinese car maker based in Shijiazhuang city, and its distributors, asking for immediate cease of design patent infringement. Shuanghuan filed non infringement lawsuit in Shijiazhuang in October 2003. Hongda then filed infringement lawsuit in Beijing in November 2003, claiming huge damages (RMB 3.4 billion). According to the SPC's first-file principle, Beijing High Court transferred the infringement case to Shijiazhuang Intermediate Court in 2004 for a combined trial.

In the meanwhile, Shuanghuan filed invalidation action in December 2003, and successfully cancelled Honda's patents in September 2007.

In April 2008 and then in April 2013, Shuanghuan lodged additional claims requiring Hongda to pay RMB 3.6 billion for the damages caused by the cease and desist letters.

Finally, in December 2015, the SPC decided that Hongda shall pay RMB 16 million for the damages caused to Shuanghuan.

How to use the cease and desist letter:

It is recommended to make a website notarization and/or notarized purchase before sending a cease and desist letter.

If the infringer ignores the cease and desist letter, you can arrange another round of notarization to prove the infringer's bad faith, and then file the lawsuit.

For complicated and important case, it is advisable to do the forum shopping and directly file the civil action without sending the cease and desist letter.

more from across site and SHARED ros bottom lb

More from across our site

A Tokyo District Court ruling concerning movie spoilers, and a second chance for VLSI against Intel were also among the top talking points
Practitioners believe new AI tools at the USPTO will not replace lawyers or disrupt revenue, but instead expose where a trademark attorney’s value lies
Leighton Cassidy Legal hopes to leverage its founder's international experience and provide clients with a rare chance to receive litigation and prosecution under one umbrella
UKIPO rejects trademark application for 'Cristiano Ronaldo Origins' following opposition by Beck Greener client in a rare case that considered actual use
Partners at both firms have voted in favour of the tie-up, which marks ‘the largest law firm merger in history’
Head of IP, Andrew Brennan, and new partner, France Delord, explain how tech provides an edge in the battle for global brand owners’ business
Anton Hopen, shareholder at Trenam Law, shares how counsel should construct Section 101 claims as early 2026 PTAB data shows reversals rising in technical cases
Law firms should consider how they can help clients, as report calls on EU to use IP-backed financing to increase bloc’s competitiveness and attractiveness for businesses
In the final part of a series on challenging patent invalidation decisions in China, lawyers at Spruson & Ferguson and Marshall Gerstein share how courts adjudicate appeals
Stijn Debaene and Carina Gommers want Brussels-based Cast Law to be the place 'everybody wants to work'
Gift this article