Defendant

Liftra IP ApS

1 case as defendant.

Company profile

Liftra IP ApS is a Danish entity primarily involved in holding and asserting patents related to the wind energy industry. While no specific founding date or direct employee count is publicly available for Liftra IP ApS itself, it is closely associated with Liftra ApS, an operating company founded in Aalborg, Denmark, in 2003 by Per Eske Fenger and Jens Mortensen. Liftra ApS, a subsidiary of Liftra Holding ApS, is headquartered in Aalborg, Denmark, and as of April 30, 2026, employed approximately 435 individuals, with reported revenue of $75.6 million as of December 31, 2024.

The operating company, Liftra ApS, specializes in designing, engineering, manufacturing, and delivering innovative lifting and transportation solutions for onshore and offshore wind turbines globally. Its product lines include self-hoisting cranes, tower stacking frames, blade yokes, main shaft fixtures, and other specialized equipment for wind turbine installation and maintenance. Liftra IP ApS appears to manage the intellectual property portfolio derived from these innovations, holding patents such as a "Base for supporting a portable crane" and "Counterweight tool" for wind turbine components.

In terms of patent litigation, Liftra IP ApS functions as a patent assertion entity, actively enforcing its intellectual property. The company's posture is evident in its 0 plaintiff cases and 1 defendant case in our tracked database, where it is the defendant in a Patent Trial and Appeal Board (PTAB) proceeding initiated by Unified Patents. This PTAB challenge targets one of Liftra IP ApS's patents.

Beyond the PTAB case, Liftra IP ApS has been engaged in broader patent enforcement activities. It is also a defendant in a declaratory judgment action filed in the Eastern District of Virginia by Liftwerx USA Inc. This lawsuit was a preemptive response to Liftra IP ApS's ongoing patent infringement claims and evidence seizure proceedings against Liftwerx affiliates in Europe and Canada, asserting patents related to main shaft fixtures for wind turbines.