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Japan Patent Office Rejects Nintendo's Key Palworld Patent

10/29/2025

Summary

Story summary

The Japan Patent Office rejected Nintendo's patent application related to its Palworld lawsuit for lack of originality.
The decision casts doubt on the validity of several Nintendo patents central to the Palworld dispute with Pocketpair.
Nintendo filed the Palworld lawsuit on September 19, 2024, alleging infringement of three creature-capture patents.
The rejection does not directly impact the ongoing case.
The Tokyo District Court case is expected to extend into 2026.

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Story summary

The Japan Patent Office rejected Nintendo's patent application related to its Palworld lawsuit for lack of originality.
The decision casts doubt on the validity of several Nintendo patents central to the Palworld dispute with Pocketpair.
Nintendo filed the Palworld lawsuit on September 19, 2024, alleging infringement of three creature-capture patents.
The rejection does not directly impact the ongoing case.
The Tokyo District Court case is expected to extend into 2026.