Riddell Says Rivals Ripped Off Football Helmet DesignsSport equipment maker Riddell Inc. hit rivals Schutt Sports and Xenith LLC with a pair of lawsuits in Illinois federal court on Thursday, accusing the companies of infringing patents for the design of football helmets.
Riddell said that Kranos Corp., which does business as Schutt Sports, has been violating a pair of patents for the helmets themselves and a third that includes the design of a quick-release face guard, with its Vengeance line of youth and adult football helmets, among others. Xenith has been violating the...
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