Japan Patent Office rejects Nintendo application relevant to Palworld dispute, cites games like ARK as prior art after third-party submission – games fray

The Japan Patent Office (JPO) has issued a non-final rejection of a key Nintendo patent application (2024-031879) related to "monster capture" mechanics, citing a lack of inventive step due to extensive prior art from games like ARK, Monster Hunter 4, Craftopia, and Pokémon GO. This application is a central component of Nintendo's patent strategy against Palworld, being a sibling or parent to patents currently asserted in the infringement lawsuit. While not directly binding, this JPO decision, potentially influenced by a third-party submission from Pocketpair, indicates significant validity challenges for Nintendo's broader "monster capture" patent portfolio and could influence the ongoing litigation, which is already experiencing delays and issues with other asserted patents.

Analysis

The Japan Patent Office (JPO) has issued a non-final rejection for Nintendo's patent application 2024-031879, citing a lack of inventive step based on extensive prior art. This application, central to Nintendo's "monster capture" patent strategy, was rejected after a third-party submission referenced games like ARK, Monster Hunter 4, Craftopia, and Pokémon GO, predating Nintendo's December 2021 priority date. Nintendo now faces the choice of abandoning the application or attempting to amend claims.

This rejection, though non-final, casts serious doubt on the validity of two of Nintendo's three Japanese patents-in-suit against Palworld, as application 2024-031879 is a sibling or parent to JP7493117 and JP7545191. The JPO's focus on real-world games as prior art, rather than just patent documents, significantly raises the stakes for Nintendo. The overlap between JPO's contentions and Pocketpair's defenses suggests Pocketpair may have influenced the third-party submission.

While not directly binding on the Tokyo District Court judge handling the Nintendo v. Pocketpair case, patent examiner determinations are typically respected and could influence the ongoing infringement proceedings. The litigation is already delayed, and a third Nintendo patent-in-suit also required modification mid-litigation, further indicating challenges to Nintendo's intellectual property enforcement strategy. This development suggests a potential weakening of Nintendo's legal position in the "monster capture" genre.

Key Decisions for Investors

• Investors should closely monitor Nintendo's response to the JPO's non-final rejection and any subsequent amendments to the patent application, as this will indicate the company's commitment to its "monster capture" IP strategy.
• Evaluate the broader implications of this development on Nintendo's intellectual property portfolio and its ability to enforce patents in the rapidly evolving gaming sector, particularly concerning similar game mechanics.
• Consider the potential for increased competition or reduced barriers to entry in the "monster capture" game genre if Nintendo's key patents are ultimately deemed invalid, which could affect long-term market positioning.
• Assess the ongoing litigation's progress and any further delays or adverse rulings, as these legal challenges introduce uncertainty and could impact Nintendo's valuation.