In late September, Nike said it won an injunction from the District Court in Nuremberg that prohibits Adidas from selling the adiZero Primeknit. Nike claimed in its suit that the shoes infringe on its Flyknit patent, launched in February. Adidas launched the Primeknit launched at the start of the 2012 London Olympics.
But Reuters reports that the court in Nuremberg, Germany said that after hearing the Adidas case, it intended to set the injunction aside on Nov. 7.
Both shoes feature a one-piece upper made of fused yarn, making each appear to have been knitted.
Adidas said on Wednesday it had filed for cancellation of the Nike patent, arguing the technology involved in making the shoe's upper from fused yarn has been around since the 1940s.
"Adidas vigorously denies the alleged patent infringement," it said in a statement.
Nike, which had been seeking to make the injunction permanent, said the latest statement from the court was just one step in a longer process.
"We will continue to aggressively protect our intellectual property rights, including through the conclusion of this interim injunction proceeding as well as in a formal infringement case," a spokeswoman told Reuters.
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