by Luke Pettit | Jan 15, 2026 | UPC
Background The UPC Court of Appeal’s decision in Otec v. Steros provides an interesting insight into claim interpretation and the constraints on relying on post-filing experimental evidence at the UPC. The case, UPC Court of Appeal decision 579/2025, arose from a...
by David Eyre | Dec 22, 2025 | EPO
Background Under G 1/92, a product on the market was not considered “available” as prior art under Article 54(2) EPC if the skilled person could not reproduce it without undue burden. This created a peculiar legal fiction: a product could be purchased yet legally...
by Carolyn Haywood | Oct 28, 2025 | US & International
In district court litigation, patents can be challenged on any ground, and challenges may be based on any kind of prior art recognised by the patent statutes. Inter partes review (IPR) proceedings are, however, different. They are administrative proceedings in which...
by Juliette Boynton | Oct 15, 2025 | EPO
As a reminder, following grant of a patent to Foreo AB an opposition was filed by Beurer GmbH, and during the pendency of the opposition, Foreo sent a letter to Geske GmbH & Co. KG accusing them of infringment and threatening action. Geske filed an intervention...
by Carolyn Haywood | Sep 30, 2025 | EPO
Background to the referral The G 1/23 referral came from Board 3.3.03 in the consideration of T 0438/19, an appeal against the decision of an opposition division to reject an opposition against a European patent directed to a material for encapsulating a solar cell...
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