RPX took note, among the USPTO assignment records made available during the first half of May, of the transfer of patents to frequent plaintiffs Leigh M. Rothschild and IP Valuation Partners (both of which received patents from Intellectual Ventures LLC) and BlackBird Tech LLC. RPX also took note of transfers of patents from multiple assignors to an NPE controlled by patent attorney Brian Yates—a California attorney revealed, by a January sanctions ruling in Texas, as controlling more entities than previously thought. Also among the noted transactions are outbound assignments by Panasonic, Pantech, and ZTE, and a transfer from Allied Security Trust’s Industry Patent Purchase Program involving former IBM and Nokia patents.

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 November 2015, RPX saw 15 patent transfers to NPEs recorded with the USPTO. Several of those transactions involved patents that have been recently asserted in litigation against operating companies, including in the barrage of NPE cases that were filed on November 30, 2015, in anticipation of changes to the Federal Rules of Civil Procedure.

In the first half of October 2015, RPX saw eleven patent transfers to NPEs recorded with the USPTO.

In the first half of August 2015, RPX saw 14 patent transfers to non-practicing entities recorded with the USPTO.

In the second half of June 2015, RPX saw three patent transfers to non-practicing entities recorded with the USPTO.

In the second half of May 2015, RPX saw 12 patent transfers to non-practicing entities recorded with the USPTO.

In the second half of April 2015, RPX saw 13 transfers of patents recorded with the USPTO.

For the second half of March, RPX saw 19 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.