Zillow Loses Bid To Exit IBM Sign-On Tech Patent Suit

By Adam Lidgett · July 1, 2026, 5:59 PM EDT

A Washington federal judge has refused to let Zillow out of IBM's lawsuit accusing the online real estate marketplace company of infringing a user sign-on patent, rejecting Zillow's argument that the...

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Case Information

Case Title

International Business Machines Corporation v. Zillow Group Inc et al

Case Number

2:20-cv-00851

Court

Washington Western

Nature of Suit

Patent

Date Filed

May 28, 2020