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Cisco Systems Inc. has petitioned U.S. District Judge Alan D. Albright to declare a mistrial in its ongoing legal battle over alleged server patent infringement. The tech giant contends that Judge Albright's fluctuating claim construction undermined its defense strategy, prompting Cisco to seek a fresh trial.

Cisco Mistrial Request  : Shifting Definitions Spark Controversy

In its Wednesday motion, Cisco claims that it based its defense against Paltalk Holdings Inc.'s infringement allegations on Judge Albright’s initial claim construction guidance. However, Cisco argues that this guidance shifted dramatically during the trial, particularly regarding the term "each." Initially a point of contention, the term’s definition evolved from a jury determination to a court decision and back to the jury by Tuesday.

Cisco asserts that this inconsistency has compromised its ability to effectively present its case, alleging significant damage to its defense strategy. The company argues that these changes have left it "off balance" and believes a mistrial is necessary to restore fairness in the proceedings.

Strategic Impact of Changing Definitions

During pre-trial claim construction, Cisco advocated for defining "each" in Paltalk’s server patent as "all," asserting this as the term’s "plain and ordinary meaning." However, Paltalk’s expert testimony introduced a conflicting definition of "one or more," leading to judicial confusion and altering Cisco's trial strategy.

Judge Albright initially left the definition to the jury but later informed Cisco that he had unilaterally construed the term. By the trial’s second day, he reversed course again, directing the jury to decide the term’s meaning. Cisco argues that this flip-flopping occurred after it had already presented its technical witnesses, who were selected based on prior guidance.

Cisco Mistrial Request  : Opposition and Further Legal Actions

Paltalk Holdings countered Cisco's mistrial request, claiming the court’s definition of "each" remained consistent. The patent holder argues that Cisco's confusion is a ploy to mask its inability to accept the court's construction, which Paltalk asserts would clearly indicate Cisco’s infringement.

In a parallel legal move, Cisco Systems has also filed for judgment as a matter of law, asserting that Paltalk Holdings failed to provide concrete evidence of infringement and thus is not entitled to damages. This motion for judgment does not address the mistrial request directly, highlighting the complexity of Cisco's legal strategy.

Representation and Next Steps

Paltalk Holdings is represented by Mark D. Siegmund of Cherry Johnson Siegmund James PLLC and a team from Susman Godfrey LLP, including Max L. Tribble Jr., Ryan Caughey, Amber B. Magee, and Kalpana Srinivasan. Cisco Systems' legal team includes Sarah E. Piepmeier, Elise Edlin, Robin L. Brewer, Nathan B. Sabri, and others from Perkins Coie LLP and Potter Minton.

As the court evaluates Cisco's mistrial request, the case continues to evolve, potentially setting a significant precedent for patent litigation.