Lawsuit Targets Ecommerce Sellers Over Cup Design Patent

Published: 02/12/2026
Water Bottle Patent Infringement Risk Cross-border E-commerce
DRINKING CUP initiated a patent infringement lawsuit, case number 24-cv-9778. The case involves a design patent for a leak-proof sports water bottle. Cross-border e-commerce sellers offering similar products are advised to conduct self-checks for potential infringement risks. It is recommended to promptly remove problematic products from listings and consult with legal professionals to avoid unnecessary losses. This action highlights the importance of patent due diligence for online retailers selling globally.
Lawsuit Targets Ecommerce Sellers Over Cup Design Patent

A recent patent enforcement case involving a DRINKING CUP water bottle (Case No.: 24-cv-9778) has emerged, serving as another stark reminder for cross-border e-commerce sellers about the critical importance of intellectual property protection.

Case Overview:

  • Filing Date: October 9, 2024
  • Case Number: 24-cv-9778
  • Plaintiff Brand: DRINKING CUP water bottle
  • Brand Owner: TAIZHOU KUNHAI PLASTIC INDUSTRY CO., LTD.
  • Jurisdiction: Illinois, United States

The plaintiff in this case is a Chinese company seeking to enforce an undisclosed design patent. The patent covers a uniquely designed leak-proof sports water bottle featuring a straw, specifically tailored for outdoor activities with an emphasis on portability and functionality. Due to its innovative design and practical features, this product has become a key protected intellectual property asset for the plaintiff.

Key Consideration:

This leak-proof sports bottle likely possesses distinctive design characteristics. If your product bears similarities, you may face infringement allegations. Notably, the plaintiff being based in China suggests deeper familiarity with domestic market conditions, potentially making enforcement actions more targeted.

Risk Advisory:

If you are currently selling sports water bottles with similar designs, immediate self-assessment is crucial to determine potential infringement risks. Recommended actions include:

  • Comprehensive Review: Conduct thorough comparisons between your product and known patented designs, particularly in the leak-proof sports bottle category.
  • Prompt Removal: If infringement risks are identified, immediately delist affected products to mitigate further liabilities.
  • Professional Consultation: Engage qualified intellectual property attorneys to evaluate risks and develop response strategies.

In the competitive landscape of cross-border e-commerce, intellectual property represents a fundamental pillar for business sustainability. Avoid compromising long-term viability by neglecting patent risks, which could lead to significant legal and financial consequences.

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