Nintendo’s aggressive patent strategy just hit another speed bump. The USPTO has reopened examination of a recent Nintendo patent one tied to summoning and battling creatures possibly in response to public pushback surrounding the ongoing Palworld lawsuit.
Nintendo patent reopens after public pressure

The U.S. Patent and Trademark Office is now reconsidering patent 12,403,397, which covers gameplay mechanics similar to Pokémon’s creature summoning. The fact that the USPTO director initiated the review a move IP lawyer Andrew H. Velzen says happens in only 1% of cases, has raised eyebrows.
Velzen told Games Radar that gamer backlash may have influenced the move, especially given the ongoing debate over Nintendo’s lawsuit against Palworld developer Pocketpair.
Palworld case reignites Nintendo patent scrutiny
Nintendo’s legal action against Palworld has turned up the heat on its broader IP claims. Palworld may share creature-battling similarities with Pokémon, but critics argue the mechanics aren’t unique enough to deserve sweeping patent protection.
The timing of the patent review right as the Palworld case escalates adds fuel to the fire. Pocketpair has already updated its game in response to the dispute, and fans are watching closely.
Should public outcry shape Nintendo patent enforcement?
Velzen warns against giving too much weight to public sentiment in patent law. Still, third-party attention can highlight overly broad or recycled gameplay ideas. Without it, questionable filings may go unchecked especially in industries like gaming, where mechanics often evolve from shared traditions.
Nintendo patent rejected in Japan over prior art
Resistance isn’t coming just from U.S. players. The Japan Patent Office (JPO) recently rejected a separate Nintendo patent related to targeting and capturing mechanics. It cited games like ARK, Craftopia, and even Pokémon Go as prior art. The decision may help Pocketpair’s legal team argue against Nintendo’s claims.
Nintendo patent backlash raises wider concerns in gaming
Many fear that unchecked patents could stifle creativity in game development. Critics argue that features Nintendo seeks to protect were already present in earlier games, and trying to own them retroactively threatens innovation.
For now, the USPTO review brings the debate into sharper focus, and it’s clear this won’t be the last time a Nintendo patent faces resistance.

