PTAB Invalidates Challenged Claims In Breast Pump Patent

By Adam Lidgett · September 25, 2026, 7:42 PM EDT

The Patent Trial and Appeal Board on Friday ruled that all claims Shenzhen Root Technology Co. Ltd. challenged in a Willow Blossom wearable breast pump patent are invalid on numerous grounds....

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Case Information

Case Title

Shenzhen Root Technology Co Ltd v. Chiaro Technology Ltd

Case Number

2:23-cv-00631

Court

Washington Western

Nature of Suit

Patent

Date Filed

April 28, 2023