December 2017 saw five defendants exit and five defendants added to the largest litigation campaign of prolific inventor and frequent plaintiff Leigh M. Rothschild, who ended last year as runner up among top NPEs for the second time in a row. Symbology Innovations, LLC filed new suits against BankFinancial (1:17-cv-09036), Bounce Energy (2:17-cv-00784), CITGO Petroleum (2:17-cv-00785), Eaton (2:17-cv-00786), and Stewart Information Services (2:17-cv-00787). The complaints assert multiple patents generally related to using a mobile device to take a picture of an object having “symbology” from which information about the object can be retrieved from a remote server; more than 100 defendants have been accused of infringement through the use of QR (“Quick Response”) codes, in the first of two Rothschild-affiliated campaigns to target such codes.