Nintendo & The Pokémon Company v. Pocketpair — patent suit over capture and summon mechanics
Nintendo and The Pokémon Company sued Palworld's developer over patented creature-capture and summon mechanics. As of mid-2026 the case is fizzling: claims narrowed, related applications rejected, damages estimated in the tens of thousands of dollars.
Nintendo v. Palworld · Nintendo Co., Ltd. / The Pokémon Company · Contested — Japanese patents, ruling expected late 2026
In September 2024, Nintendo Co., Ltd. and The Pokémon Company filed a patent-infringement suit in the Tokyo District Court against Pocketpair, Inc., the developer of Palworld. The dispute is over game mechanics — chiefly the act of throwing an object to capture a creature, and summoning captured creatures from a ball to fight or to ride. This is a live case, not a grave and not a countdown.
It is worth being precise about jurisdiction: the asserted rights are Japanese patents, litigated in Japan. That puts this outside the US trading-patent corpus this site is built on, which is why the gaming wing tracks it by hand as a status page rather than as a database record with a computed expiry date.
What is actually being asserted
Reporting on the case identifies the asserted rights as Japanese patents JP 7545191 and JP 7493117, both granted in 2024 — after Palworld had already launched in early access. They read on mechanics like capturing a character by throwing a ball and summoning a captured character into the field. Pocketpair has challenged the validity of the asserted patents through invalidation proceedings at the Japan Patent Office, so even the two headline patents are not settled ground.
How it is going
The momentum has run against Nintendo. Japan's Patent Office rejected one related Nintendo application in October 2025, and in April 2026 rejected another — an application aimed at touchscreen-based creature capture — with the examiner concluding it lacked an inventive step and amounted to 'simply a general monster-catching rule set' with 'nothing technologically innovative about it.'
In November 2025 Nintendo narrowed the scope of its case to target only older versions of Palworld, after Pocketpair had patched out the disputed behaviors — summoning creatures from balls and riding them for transport — during early access. Because some asserted rights postdate the game's release and the contested mechanics were later removed, IP analyst Florian Mueller has estimated the maximum recoverable damages at roughly 5 million yen, about 30,000 US dollars — commercially trivial for a company Nintendo's size. Court hearings and a ruling are expected around November 2026.
Why a patent graveyard is watching a live fight
Most of this site is about clean deaths: a term runs out, or a fee lapses, and an invention becomes free on a knowable date. Palworld is the messier lesson underneath all of that — 'patented' is not the same as 'valid, broad, and enforceable.' Patents get narrowed, applications get rejected for lack of inventive step, and asserted claims can be challenged in review. The exclusive right a patent seems to promise is only ever as strong as what survives scrutiny.
We are tracking this as a status page, not a prediction. The facts here are transcribed from public reporting as of mid-2026 and will move as the case does; nothing on this page is legal advice.
Sources & further reading
Frequently asked questions
What is Nintendo suing Palworld over?
Patent infringement, not copyright. Nintendo and The Pokémon Company allege that specific game mechanics in Palworld — capturing creatures by throwing a ball and summoning captured creatures — infringe Japanese patents. The suit was filed in the Tokyo District Court in September 2024.
Which patents did Nintendo assert?
Public reporting identifies Japanese patents JP 7545191 and JP 7493117, both granted in 2024. Pocketpair has filed invalidation challenges against them at the Japan Patent Office.
Has Nintendo won?
There is no ruling yet; hearings and a decision are expected around November 2026. Nintendo has narrowed its claims to older versions of the game, related applications have been rejected by the Japan Patent Office, and analysts estimate any damages at roughly 5 million yen (about 30,000 US dollars).
Did Palworld change its mechanics because of the lawsuit?
Yes. During early access Pocketpair patched out the specifically contested behaviors, including summoning captured creatures from balls and riding them for transport, which is part of why the potential damages window is so narrow.
Are these US patents?
No. The asserted patents are Japanese and the case is in a Japanese court, which is why it sits in the hand-tracked gaming wing rather than in the US trading-patent corpus.