June 08, 2026
The Federal Circuit on Monday upheld a Delaware federal court's decision that deemed invalid a Purdue Pharma patent covering an abuse-deterrent version of the opioid OxyContin, rebuffing the company's arguments that the lower court got its obviousness analysis wrong.
April 08, 2026
A Federal Circuit panel expressed frustration with attorneys from both Purdue Pharma LP and generic-drug maker Accord Healthcare Inc. Wednesday as it tried to navigate whether the Delaware district court order invalidating Purdue's abuse-deterrence patent was explicit enough.
April 01, 2026
The Federal Circuit argument calendar for this month includes Centripetal Networks' appeal of a decision clearing Cisco of infringing cybersecurity patents after a multibillion-dollar award was thrown out, as well as Ecobee's challenge to an $11.5 million infringement verdict involving smart thermostats.