Apple countersues headphone maker Koss in patent infringement battle
<p class="">On July 24, headphone maker Koss sued Apple for patent infringement. Now, as reported by <a href="https://appleinsider.com/articles/20/08/09/apple-returns-fire-in-koss-airpods-patent-infringement-battle" target="_blank" rel="noopener noreferrer">AppleInsider</a>, Apple has returned the favor.</p>