Certain Wearable Breast Pumps, Associated Milk Storage Containers, and Components Thereof; Inv. No. 337-TA-1522 (Violation)
U.S. International Trade Commission
Holding
Willow Innovations, Inc. and Willow Blossom HoldCo Ltd. file a Section 337 complaint against twelve proposed respondents, mostly Chinese and other foreign companies plus several U.S. entities, alleging that imported Momcozy and Eufy wearable breast pumps, milk storage containers, and components infringe five asserted patents: the '380, '292, '388, D'344 and D'993 patents.
Why It Matters
The complaint targets popular in-bra wearable breast pumps and replacement milk collectors sold under the Momcozy and Eufy brands through a complex supply chain. Willow seeks a permanent limited exclusion order, cease and desist orders and a bond during the Presidential review period. It also asks the Commission not to delegate public interest issues to the ALJ.
Full Summary
Key Points
- Complainants are Willow Innovations, Inc. (Delaware, Mountain View, CA) and its wholly owned UK subsidiary Willow Blossom HoldCo Ltd. Willow Innovations owns the '380, '292 and D'344 patents and Willow Blossom owns the '388 and D'993 patents, which are licensed non-exclusively to Willow Innovations.
- Proposed respondents number twelve. The Momcozy group includes Shenzhen Root, Hong Kong Lute, Root Technology, Share Info, Shenzhen TPH, Horigen, Joystar and Youmeng. The Eufy group includes Anker Innovations, Fantasia Trading, Power Mobile Life, Shenzhen TPH and TPH Technology Malaysia.
- Asserted patents: '380 claims 1, 6-9; '292 claims 1-3, 5 and 7-12; '388 claims 1, 4-15, 17, 19-23, 27 and 30; and the single design claims of D'344 and D'993.
- Accused products are Momcozy pumps (M5, M6, M9, Wellness 1, Air 1, S12, S9 and variants), Eufy pumps (S1, S1 Pro, S2, S2 Pro, E20), and separately sold milk collectors and containers. Evidence includes U.S. purchases, packaging, FDA records and import data.
- Domestic industry is alleged through the Willow Go, Willow 360, Willow Go Splashguard container, Elvie Pump and Elvie Pump Bottles. It rests on U.S. plant and equipment, labor and capital, and engineering and R&D investment, including about 68 U.S. employees, and on the Elvie acquisition.
- Relief requested is a permanent limited exclusion order, permanent cease and desist orders, and a bond during the 60-day Presidential review period.
Related Documents
- Notice of Investigation · 337-TA-1522 · September 22, 2026Certain Wearable Breast Pumps, Associated Milk Storage Containers, and Components Thereof; Inv. No. 337-TA-1522
- Supplemental Complaint · 337-TA-1522 · September 23, 2026Certain Wearable Breast Pumps, Associated Milk Storage Containers, and Components Thereof; Inv. No. 337-TA-1522 (Violation)
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