RPX took notice, among the USPTO assignment records made available during the first half of June, of patent transfers to a number of frequent plaintiffs in patent litigation, including Blackbird Tech LLC; IP Valuation Partners LLC; and Monument Patent Holdings, LLC. Assignees also included Intellectual Ventures LLC, Longhorn IP LLC, and several NPEs associated with California attorney Daniel Cotman. Dongbu HiTek and Sharp were among the assignors.

RPX took note, among the USPTO assignment records made available during the first half of March, of the transfer of one set of patents to Fortress Investment Group LLC, after the NPE assignor’s default on a prior financing agreement. Fortress intervened in the campaign asserting some of those patents, bringing the litigation to a relatively rapid close. RPX also took notice of the transfer of patents from multiple assignors to another entity, Knapp Investment Company Limited, a British Virgin Islands entity that has never filed suit. The records made available in early March also contain transfers to frequent plaintiffs, including affiliates of patent monetization firms IP Valuation Partners LLC and Monument Patent Holdings, LLC, as well as Blackbird Tech LLC and Empire IP LLC.

In the second half of September 2015, RPX saw 10 patent transfers to non-practicing entities (NPEs) recorded with the USPTO. Additionally, in the past month, RPX recorded the assignment of patents from one inventor-controlled company and one university.

In the second half of July 2015, RPX saw 17 patent transfers to non-practicing entities recorded with the USPTO.

In the beginning of March, RPX saw 10 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.