Seagate Prevails with Full Defense Verdict in Pennsylvania Patent Infringement Trial

Seagate Technology achieved a full defense verdict in a significant patent infringement jury trial held in the Western District of Pennsylvania. The case, Lambeth Magnetic Structures v. , involved allegations that Seagate's hard drive write heads infringed a patent issued in 2006 to a former Carnegie Mellon University professor.

The plaintiff, Lambeth Magnetic Structures, asserted that several microscopic layers within Seagate’s hard drive write heads violated the patented technology. The patent focused on ultra-thin magnetic layers and crystal structures integral to the write head design. Representing Seagate, the Faegre Drinker intellectual property litigation team contested the infringement claims by demonstrating that Seagate’s write heads did not incorporate the patented structural elements.

The defense emphasized that the accused products diverged materially from the patented configurations. To aid the jury’s understanding of the intricate technical issues, the Faegre Drinker team collaborated with the firm’s Design Lab to develop visual advocacy models. These models effectively illustrated the complex magnetic layer structures and crystal arrangements described in the patent, facilitating clearer comprehension of the technology at issue.

The trial spanned two weeks, during which both sides presented expert testimony and technical evidence. Following the conclusion of arguments, the jury deliberated for less than one day before returning a verdict in favor of Seagate on all 10 patent claims. This outcome represents a significant victory for Seagate, affirming the company’s non-infringement position and underscoring the effectiveness of combining technical expertise with innovative courtroom presentation techniques.

Katterheinrich, Kate S. Wagner, along with counsel Lucas J. Their coordinated efforts were instrumental in securing the favorable verdict.