Evolusion Concepts, Inc. v. Hoc Events, Inc., No. 21-1963 (Fed. Cir. 2022)
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Evolusion owns the 845 patent, titled “Method and Device for Converting Firearm with Detachable Magazine to a Firearm with Fixed Magazine.” Evolusion sued Juggernaut, alleging infringement of several claims. The district court granted Juggernaut summary judgment of non-infringement, reasoning that the term “magazine catch bar” in the asserted claims excluded a factory-installed magazine catch bar. The court held that claim construction concededly precludes literal infringement because Juggernaut’s products use the factory-installed magazine catch bar. The court also determined that Juggernaut did not infringe under the doctrine of equivalents. The Federal Circuit reversed, holding that the term “magazine catch bar” in the asserted claims includes a factory-installed magazine catch bar.
Evolusion also sued Juggernaut for infringement, based on Juggernaut’s manufacture and sale of its “Hellfighter Mod Kits,” which convert a firearm with a detachable magazine into a firearm with a fixed magazine. The court determined that no construction was needed of the term “upper tension bar,” that “magazine catch bar” excluded a factory-installed (OEM) magazine catch bar, and that under that construction, Juggernaut cannot infringe under the doctrine of equivalents. The Federal Circuit again reversed, construing the term “magazine catch bar” “according to its ordinary meaning,” which includes a factory-installed magazine catch bar.
The court issued a subsequent related opinion or order on March 18, 2022.
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