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Oppositions at the EPO

Our patent attorneys have years of experience advising on and representing clients in opposition proceedings and appeals before the EPO. Oppositions are a commercially astute method for revoking others’ patents as an alternative or addition to court proceedings.

Oppositions activity

We can:

attack and defend patents across all sectors and technologies

pursue appeals following EPO first instance decisions

attend hearings on clients’ behalf at the EPO

Dispute strategy

We can:

advise on oppositions as part of a wider dispute strategy

monitor and formulate strategies for dealing with competitors’ patents

We can also:

advise on pre-grant strategy including third party observations

challenge patent validity post-grant in national courts, working with your original advisors and/or our solicitors/lawyers

We work across these sectors and more:

Aeronautical engineering
Aerospace engineering
Agriculture
Automotive
Biotechnology
Chemical
Cleantech
Construction
Defence
Electronics
Food

IT/Software
Materials
Manufacturing
Mechanical/Engineering
Medical devices
Nanotechnology
Oil & Gas
Optical technologies
Pharmaceutical
Semiconductors
Telecommunications

Get in touch to discuss a dispute strategy appropriate to your situation at oppositions@marks-clerk.com.

Philip Cupitt
Partner

Stéphane Ambrosini
Senior Associate

Maureen Kinsler
Partner

Philip Martin
Partner

Meet our principal points of contact for Oppositions at the EPO

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