EPO Boards of Appeal Archives

EirGen Pharma, DSM, Rayaldee, calcifediol, EPO, Boards of Appeal

EirGen Pharma and Meissner Bolte defend basic patent for kidney drug

An important basic patent for EirGen Pharma's drug Rayaldee for the treatment of chronic kidney disease in adults remains valid. This was decided by the Boards of Appeal at the EPO. However, this does ...

3 March 2026 by Mathieu Klos

Cases

Boards of Appeal, EPO, Opposition Division, Sidel, Krones

European Patent Office

Boards of Appeal: EPO must reopen PET bottle patent case

The Opposition Division at the European Patent Office has received a reprimand for a decision concerning a Sidel packaging patent. The Boards of Appea ...

5 February 2026 by Mathieu Klos

Cases

MS drug

Boards of Appeal revoke Biogen's dosage patent for Tecfidera

The Boards of Appeal at the European Patent Office have refused to grant Biogen's dosage patent EP 873, which is central to its multiple sclerosis dru ...

12 December 2025 by Mathieu Klos

Cases

Enlarged Board, Foreo, Geske, Breuer, skin-cleanser

EPO Enlarged Board of Appeal

G2/24: EBA brings skin-cleanser dispute to an end

The Enlarged Board of Appeal has ruled that a subsequently filed appeal cannot prolong an opposition against a European patent if the main appellant h ...

26 September 2025 by Mathieu Klos

Cases

EBA, EPO Enalrged Board of Appeal, Knauf, Rockwool, hydroponics, patent claims, descriptions

EPO Enlarged Board of Appeal

G1/25: EBA to decide on hydroponic case between Knauf and Rockwool

The Enlarged Board of Appeal faces its first referral of 2025. The EPO's highest instance must now decide on the office's current legal practice regar ...

20 August 2025 by Mathieu Klos

Cases

prior art, inventive step, Enlarged Board of Appeal, Borealis, Mitsui

EPO Enlarged Board of Appeal

G1/23: If it is public, it is prior art

A product made publicly available before a patent's filing date cannot be excluded from prior art simply because its composition or structure could no ...

8 July 2025 by Konstanze Richter

Cases

EBA, Enlarged Board of Appeal, EPO, G1/24, claims, case law, interpreting

EPO Enlarged Board of Appeal

G1/24: Enlarged Board of Appeal harmonises EPO and UPC legislation

When assessing the patentability of an invention, the description and drawings of an application must be considered to interpret the claims. With this ...

24 June 2025 by Konstanze Richter

Cases

Novo Nordisk, Ozempic, Wegovy semaglutide

Blockbuster drug

EPO revokes another Novo Nordisk patent behind Ozempic and Wegovy drugs

In the ongoing dispute over its highly successful weight-loss drug semaglutide, Novo Nordisk has suffered a further setback as the EPO revoked yet ano ...

16 May 2025 by Konstanze Richter

Cases

Edwards Lifesciences, Meril Life Science, transcatheter heart valves, EPO Boards of Appeal

Medical devices

Epic battle over heart valves continues as EPO revokes two Edwards patents

The EPO Boards of Appeal have revoked two divisional patents belonging to Edwards Lifesciences' heart valve portfolio. This latest development comes a ...

4 April 2025 by Mathieu Klos

Cases

Meril Life Sciences, Edwards Lifesciences, heart valves, Boards of Appeal

Medical devices

Meril successful at EPO against Edwards Lifesciences in heart-valve battle

In a victory for Meril Life Sciences in the long-running dispute over heart valves, the Boards of Appeal have revoked one of several patents-in-suit b ...

16 January 2025 by Konstanze Richter

Cases

EPO Boards of Appeal

EPO not playing along with KPN's UPC strategy

The Boards of Appeal have revoked an important patent belonging to KPN. The Dutch company recently filed a complaint against Oppo with the UPC. The pa ...

23 December 2024 by Mathieu Klos

Cases

CRISPR/Cas

Swerving the matter of granting genetic scissor patents at the EPO

This autumn, the EPO Boards of Appeal were supposed to issue landmark decisions in the battle for the basic patents on CRISPR/Cas9 technology. But the ...

28 November 2024 by Mathieu Klos

Legal Commentary

Boards of Appeal, BoA, EPO, quality, Annual Report

Opinion

"Figures show the EPO Boards of Appeal are highly productive, but it's only half the story"

The EPO Boards of Appeal have published their Annual Report 2024 and one aspect in particular stands out: in line with the current strategy, the court ...

21 May 2024 by Mathieu Klos

Cases

EPO Enlarged Board of Appeal

EBA to consider claim construction questions in heat-not-burn dispute

In Yunnan Tobacco vs. Philip Morris, the EPO Boards of Appeal will refer key questions on claim construction to the Enlarged Board of Appeal. If the E ...

22 April 2024 by Amy Sandys

Cases

European Patent Office

EPO new battleground in Nevro and Boston Scientific medical device dispute

The EPO Boards of Appeal have revoked several patents belonging to Nevro, following oppositions from competitors Boston Scientific and Medtronic. Whil ...

23 February 2024 by Amy Sandys

Comparison of opposition proceedings at the EPO and revocation actions at the UPC – advantages and disadvantages

Since the introduction of the Unified Patent Court (UPC) in June 2023, a new system for central attacking the validity of and thereby to nullify a Eur ...

30 January 2024 by Prüfer and Partner mbB

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