Nintendo responds to Palworld's patent defense for "past art"

Nintendo has responded to PocketPair's defense in Palworld Patent lawsuit and claims that the defendant goes overboard by quoting mods as “past art.” If accepted, the claim can undermine parts of PocketPair's strategy to show that Palworld does not violate several Nintendo patent.

Palworld Pengullet vs Pikachu Clashing on gradient background 2x1 Composite — A 2: 1 -image relationship composed that shows the pengul from *Palworld* And pikachu from *Pokemon* Prepares to collide with each other. A movement of movement is visible behind both creatures, while a blue-yellow slope is seen in the background.

The ongoing dispute between Pocketpair and Nintendo began in September 2024, when the latter submitted a case that claimed Palworld violates three of its patents. In April 2025, parts of PocketPair's defense in Palworld The case became public and revealed that the Japanese studio adopted a strategy with double defense and questioned the validity of Nintendo's patents while claiming non-infringement. To compete validity, PocketPair quoted past art from commercial games and community -mods, including Pocket Souls Mod for Dark Souls 3. Pocket Souls was specifically mentioned as part of an argument that Nintendo did not invent its patented system for directing a catch object – for example a Poke ball – and calculating catch chances before a goal has been successfully acquired.

Nintendo claims that mods is not independent past art in Palworld patent fight

In mid -September 2025, Games Fray received new court applications showing that Nintendo has now responded to parts of Pocketpair's first defense in Palworld patent case. The Gaming Giant's lawyers have specifically taken goals against Pocketpair's quotes that revolve around the mods and claim that such creations cannot be run without underlying games and therefore should not be regarded as previous art.

Super Mario Raising Fist Behind Lamball Pal from Palworld — A 2: 1 image relationship composite with Super Mario that raises his right fist while he was behind the lamb palm from *Palworld*. An anime-style sweat drop has been edited over Lamball's head, which makes it seem worried.

Tokyo District Court is expected to determine the claim in the coming months. A decision to Nintendo's advantage can weaken Pocketpair's argument that one of the three patents in the middle of Palworld Trial – JP7493117 – is invalid. Mods is just one of several examples of past art quoted by the company in response to Nintendo's innovation requirements. Although the court dismisses that reasoning, Pocketpair still has other arguments to fall back on.

Super Mario angry in front of Cattiva from Palworld 2x1 Composite — A 2: 1-image relationship composite with an angry stylish mario in fron from cattiva from *Palworld*.

Why is Nintendo concerned about mods in the Palworld patent case?

According to Games Fray Patent Analyst Florian Mueller, Nintendo's legal strategy in this case depends on the Tokyo District Court with interpreting all three patents quite wide. While this would make it easier to prove intrusion, it would also make patents more susceptible to be controlled invalid because of being for Wide to even be patentable in the first place. By pushing back against the notion that the mods are former art, Nintendo tries to limit the references that pocketpair can quote for invalidity while leaving room to argue infringement.

With patent cases in Japan that takes between 18 and 24 months on average, the first instance of this dispute will not arrive before mid -2026. In July 2025, Palworld The atmosphere took a very unusual turn when Nintendo changed one of its patents in the middle of the suit. This forced the court to reconsider many aspects of the case from the beginning, which significantly slowed the procedure. As a result, the next meaningful update of the case is not expected to come before 2026, according to Mueller, who previously told that Game Rant can take years to solve without a solution.