China’s Supreme People’s Court Confirms Xiao-I AI Patent Validity——Apple Appeal Dismissed, Risk Factor Highlights Market Concerns

Lead

On March 27, 2026, China’s Supreme People’s Court issued a final judgment upholding the validity of a core AI patent held by Xiao-I Corporation, dismissing Apple’s petition for invalidation. The decision concludes a 14-year legal dispute over patent validity, though damages and infringement determinations remain under review in the Shanghai High People’s Court. Apple’s stock fell approximately 5% on April 7, dropping from $258.86 to below $246, as market confidence was shaken by the patent judgment combined with delays in foldable iPhone development.

Legal Status and Litigation History

The Supreme People’s Court judgment represents a final dismissal of Apple’s appeal challenging the patent’s validity. The disputed patent, Chinese Invention Patent ZL200410053749.9, was filed in 2004 and granted in 2009, covering a chatbot and interactive robot system.

The litigation history is complex. In June 2012, Xiao-I Corporation sued Apple, alleging that Siri technology infringes the patent. Apple subsequently requested invalidation from the China Patent Office (SIPO) in November 2012. The Patent Review Board found the patent valid in September 2013, but the Beijing High People’s Court ruled the patent invalid in April 2015.

However, on June 29, 2020, China’s Supreme People’s Court reversed the Beijing High People’s Court judgment, definitively establishing the patent’s validity. Subsequently, on June 28, 2024, the Beijing Intellectual Property Court again supported patent validity. The most recent judgment on March 27, 2026, saw the Supreme People’s Court dismiss Apple’s appeal and fully affirm the patent’s validity.

Patent Scope and Technical Claims

Xiao-I Corporation’s Chinese Invention Patent ZL200410053749.9 covers chatbot and interactive robot system technology, encompassing natural language processing, voice recognition, dialogue management, and related elements. The patent holder has asserted that Apple’s Siri voice assistant technology falls within the patent’s claims.

Xiao-I Corporation was founded in Shanghai in 2001 and operates through its US-listed parent company Xiao-I Corporation (NASDAQ: AIXI). The company operates across multiple business segments including “AI+Contact Center,” “AI+Finance,” “AI+City,” and “AI+Architecture,” with core technologies in natural language processing, voice processing, computer vision, and machine learning.

Damages and Infringement Determinations Remain Pending

Significantly, the Supreme People’s Court judgment addresses only patent validity; it does not constitute a final determination on damages or infringement. The underlying infringement litigation continues in the Shanghai High People’s Court, where damages will ultimately be determined.

Some reports have circulated estimated damages figures of approximately £1.1 billion or $1.4 billion, but these represent media estimates rather than court determinations. Patent validity confirmation provides a favorable foundation for infringement litigation but does not itself establish final liability for damages.

Market Impact and Investor Sentiment

Apple stock declined approximately 5% on April 7, falling from $258.86 to below $246 per share. Year-to-date performance stands at approximately -9%, with 12-month returns at approximately +37%.

The decline reflects multiple factors. The patent judgment represents a legal loss in a significant Chinese jurisdiction, while delays in foldable iPhone development compound investor concern, with both factors converging to rattle investor confidence. Additionally, investors have focused attention on Apple’s revenue dependence on Greater China. Q1 FY2026 Greater China revenue reached $25.53 billion, representing 37.9% year-over-year growth. Apple’s public filings identify “geopolitical tensions,” “unfavorable legal proceedings,” and “complex regulatory environments” as material risks, factors that the judgment exemplifies.

Xiao-I Stock Performance and Market Valuation

In contrast, Xiao-I Corporation (NASDAQ: AIXI) experienced significant stock price appreciation following the judgment victory. On April 6 NASDAQ trading, the stock recorded trading volume of 1.12 billion shares with corresponding price gains. Market recognition that confirmed patent validity strengthens the company’s negotiating position in future damages settlement and licensing discussions.

Implications for Japanese Enterprises and IP Strategy Lessons

The case demonstrates several important lessons for Japanese companies.

First, the importance of securing patent validity in China. As voice AI, smart speakers, and automotive HMI (Human-Machine Interface) technologies potentially face increased licensing and patent disputes with Chinese competitors, effective assertion and defense of proprietary technology rights becomes strategically essential.

Second, the significance of Supreme People’s Court authority. As demonstrated here, lower court adverse judgments can be reversed at the highest level. This indicates that thorough utilization of appellate opportunities in Chinese patent litigation constitutes an important management decision.

Third, the relationship between regional revenue concentration and IP risk exposure. For companies such as Apple, where Greater China revenue represents a substantial portion of total revenue, adverse patent judgments carry disproportionate investor impact. This consideration becomes material for Japanese enterprises expanding their presence in China.

Sources

• 247wallst.com – Apple Drops 5% as Foldable iPhone Delays and China Patent Battle Rattle Investor Confidence
• TipRanks – Xiao-I Corp Wins Final Supreme Court Ruling Upholding Patents in Apple Dispute
• National Law Review – Latest Decision: Supreme People’s Court of China Confirms Validity of Little-i Robot Patent
• Mondaq – Apple Faces Patent Lawsuit After China’s Supreme Court Restores Validity of Xiao-i Patent
• Meyka – Xiao-I Corporation (AIXI) NASDAQ Close 06 Apr 2026