On March 13, 2015, the Patent Trial and Appeal Board found claims of U.S. Patent No. 8,326,924 of Metasearch Systems, LLC unpatentable under Section 101 and Section 103 of the Patent Act. The decision concluded a Covered Business Method Review Proceeding (CBM2014-00001) filed and tried by Klarquist, on behalf of American Express Co., Expedia, Inc., Orbitz Worldwide, Inc., Priceline.com Inc., Travelocity.com LP, and Yahoo! Inc. d/b/a Yahoo! Travel, and their affiliates American Express Travel Related Services Company, Inc., Hotels.com LP, Hotels.com GP, LLC, and Hotwire, Inc. in response to the 2012 lawsuits filed by Metasearch Systems, LLC in the District of Delaware against these companies.