Weighted Exercise Band Patent Dispute Ends in Mutual Dismissal
What would you like to do next?
Choose your path based on your current needs:
📋 Case Summary
| Case Name | Xiamen Tingken Electronic Technology Co., Ltd. v. Bala Bangles, Inc. |
| Case Number | 1:25-cv-03614 |
| Court | U.S. District Court for the Eastern District of New York |
| Duration | June 25, 2025 – Feb 11, 2026 231 days |
| Outcome | Mutual Dismissal – No Prejudice |
| Patents at Issue | |
| Accused Products | Weighted exercise band sold by Bala Bangles, Inc. |
Case Overview
The Parties
⚖️ Plaintiff
Chinese electronics and consumer goods manufacturer and registered owner of the asserted design patent.
🛡️ Defendant
U.S.-based fitness accessory brand, widely recognized for its weighted wrist and ankle bands.
The Patent at Issue
The asserted patent — U.S. Design Patent No. USD888167S (Application No. 29/641,509) — protects the ornamental design of a **weighted exercise band**. Design patents protect the visual appearance of a product, not its functional attributes.
- • US D888167S — Ornamental design of a weighted exercise band
The Accused Product
The accused product was a **weighted exercise band** sold by Bala Bangles, Inc. — the core product in the company’s commercial portfolio.
Developing a new fitness product?
Check if your design might infringe this or related patents in the fitness accessory space.
The Verdict & Legal Analysis
Outcome
On **February 11, 2026**, both parties filed a **stipulated voluntary dismissal without prejudice** pursuant to Federal Rule of Civil Procedure 41(a)(1)(A)(ii). This effectively ended the litigation without a substantive ruling.
- All claims and causes of action dismissed **without prejudice**.
- Each party bears its **own attorneys’ fees, costs, and expenses**.
- **No admission of liability**, fault, or wrongdoing by either party.
Legal Significance
The “without prejudice” designation means Xiamen Tingken retains the right to refile the same claims in the future. The dismissal without judicial findings or a “prevailing party” designation creates a **neutral procedural record** with no precedential value for design patent claim construction in this product category. It’s consistent with a negotiated resolution, possibly involving undisclosed licensing terms or a design-around agreement.
Filing a design patent?
Learn from these cases. Use AI to draft stronger claims that can withstand litigation.
Power Your Patent Strategy with PatSnap Eureka IP
From novelty searches to patent drafting, PatSnap Eureka’s AI-powered tools help you navigate the patent landscape with confidence.
⚠️ Freedom to Operate (FTO) Analysis
This case highlights critical IP risks in consumer fitness product design. Choose your next step:
📋 Understand This Case’s Impact
Learn about design patent assertion trends, especially by foreign entities against U.S. brands.
- Monitor USPTO design patent filings by Chinese assignees
- Analyze competitive landscapes in wearable fitness tech
- Understand design patent validity challenges
🔍 Check My Product’s Risk
Run a comprehensive FTO analysis for your own technology or product in the fitness space.
- Input your product description or technical features
- AI identifies potentially blocking design patents
- Get actionable risk assessment report
Active Assertion Area
Wearable fitness accessory designs
Cross-Border Risk
Chinese IP holders target U.S. brands
Design-Around Key
Proactive FTO prevents disputes
✅ Key Takeaways
For Patent Attorneys
Voluntary dismissal without prejudice preserves plaintiff’s refiling rights and avoids adverse merits rulings on design patent validity.
Search related case law →Multi-firm defense coordination signals high commercial stakes; early parallel engagement of IP litigation counsel is advisable.
Explore defense strategies →For R&D and Product Teams
Conduct proactive Freedom to Operate (FTO) analyses against registered design patents, including those held by foreign entities.
Start FTO analysis for my product →Design differentiation is both a commercial and legal imperative in crowded consumer product spaces.
Try AI patent drafting →Ready to Strengthen Your Patent Strategy?
Join thousands of IP professionals using PatSnap Eureka to conduct prior art searches, draft patents, and analyze competitive landscapes.