Oppositions & appeals

Oppositions at the European Patent Office (EPO) are the only opportunity that a party has for central revocation of a European patent. Consequently, oppositions are valuable business tools which can be used to gain competitive advantage, whether attacking a competitor’s patent or mounting a robust defence of your own patent.

As one of Europe’s leading opposition and appeals providers*, HGF’s success is based on an understanding that winning solutions are founded on outstanding technical and legal skills, commercial nous and unstinting preparation.

Our dedicated Oppositions & Appeals team coordinates with HGF’s broader attorney group to share best practice and provide a sounding board for internal debate. Our principal oppositions attorney team comprises 20 partners and 14 senior attorneys with expertise that spans the technical spectrum, each supported by a formalities team with extensive opposition experience.

*IAM Magazine, Dec 2020 states that HGF is Europe’s fourth largest provider of Opposition services, representing clients in over 2.5% of all Oppositions filed at the EPO.

Defending

151 live cases

Opposing

231 live cases

Signing paperwork
Two women walking in an office

Our oppositions & appeals specialists

We’ve built our business by recruiting and developing specialists, not generalists. When it comes to protecting your ideas and business, you want to know you’re working with the best – people who truly understand your sector and the potential of your IP.

HGF’s team has oppositions & appeals professionals from an array of academic and business backgrounds. Our team-based approach ensures our clients benefit from the very best strategic advice from people who understand not only the legal environment but also the practical side of your business.

Let's talk

If you would like to discuss how HGF could help you, contact one of our oppositions & appeals specialists.

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Decision of the EBoA regarding G1/21

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G1/21 hearing at the EPO - July

G1/21 hearing continues on 2nd July 2021. Follow this page for updates from HGF Partner Douglas Drysdale and Patent Director Ellie Purnell, who will be reporting all the key moments …

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G1/21 hearing at the EPO

Follow this page for the updates from G1/21 hearing at the EPO on 28th May 2021. HGF Partners Dr Chris Moore and Douglas Drysdale will be reporting all the key …

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EPO continues oral proceedings by videoconference in examination and opposition during pendency of referral G 1/21

The EPO Boards of Appeal took the decision that from the start of 2021, all Boards of Appeal oral proceedings could be held by videoconference, even if the parties to …

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Patentability of Computer Simulations in Europe (G 01/19)

The long expected decision of the Enlarged Board of Appeal (G 01/19) has been announced by the EPO. The decision relates to the question whether computer simulations can be patented …

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Oral Proceedings before EPO Opposition Divisions – VC mandatory from January 2021 – will the Board of Appeal follow?

On 10 November 2020 the EPO announced further measures in relation to the Pilot Project to allow opposition hearings to be held by videoconference (VC). Initially, the pilot project was …

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Coronavirus update: Oral proceedings before Opposition Divisions and Boards of Appeal

In view of the ongoing disruptions caused by the spread of Coronavirus (COVID-19), the European Patent Office (EPO) has implemented special measures for arrangement and conduct of oral proceedings. These …

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Event - 1st July 2020

The European Patent Institute (epi) Webinar series - “Case Law Online“

HGF Partner Leythem Wall will be presenting a webinar on “Priority” on 1st July. “Case Law Online” is a series of webinars giving you an overview of relevant key decisions and recent …

Event details