RPX took note of eleven patent transfers to NPEs recorded during the first half of November 2016. Assignees included entities controlled by Wi-LAN, Inc.; Marathon Patent Holdings, LLC; or IP Valuation Partners LLC; NPEs apparently affiliated with Intellectual Ventures LLC or Equitable IP Corporation; and entities managed by Erik Stamell, Leigh M. Rothschild, or Nicolas J. Labbit. Also this month, BlackBird Tech LLC, which has waged 11 litigation campaigns to date, acquired a patent that was asserted against 70 companies in a large NPE campaign that closed earlier this year.

In the second half of July 2016, RPX saw 13 patent transfers to NPEs recorded with the USPTO. A number of those transactions involved patents that have already been asserted in litigation against operating companies.

In the second half of January 2016, RPX saw ten patent transfers to NPEs recorded with the USPTO. At least one of those transactions involved a patent that has already been asserted in litigation against operating companies.

For the first half of April, RPX saw 20 transfers of patents recorded with the USPTO.

For the first half of February 2015, RPX saw nineteen transfers of patents to NPEs recorded with the USPTO.