June 18, 2013
Real estate website operator Trulia Inc. asked a Washington federal judge on Monday to nix a lawsuit accusing it of infringing the patent for competitor Zillow Inc.'s home valuation service, arguing that a recent Federal Circuit ruling renders Zillow's abstract idea patent-ineligible.
September 13, 2012
Real estate website operator Zillow Inc. on Wednesday accused its industry competitor Trulia Inc. of infringing its patent by offering a home valuation service purportedly based on Zillow's own calculation method.