July 01, 2026
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 company's processes weren't covered by what the patent requires.
April 20, 2026
Zillow has urged a Washington federal court to sack IMB Corp.'s lawsuit that accuses the online real estate marketplace company of infringing a user sign-on patent, saying users logging into its platforms have to take an "overt action" that is "explicitly contrary" to what the patent requires.
October 17, 2022
A Federal Circuit panel on Monday found that two IBM patents covered abstract ideas, cementing a partial trial victory for Zillow Group Inc. against IBM's claims it infringed the patents.