Santa Ana-based First American CoreLogic Inc. has filed a federal lawsuit against eight rivals, including the popular real estate website Zillow.com, accusing them of infringing on a 1994 automated appraisal patent, according to the lawsuit.
The real estate data firm maintains that it owns a patent on an “automated valuation model,” or AVM, that can spit out value estimates for real estate parcels anywhere in the U.S.The suit, filed last month in the Eastern District of Texas, maintains that Zillow and the other seven firms use CoreLogic’s AVM to sell products to its customers or other businesses without paying any royalties.
Read More:http://lansner.ocregister.com/2010/05/04/first-american-sues-zillow/64541