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What we do

Post-grant proceedings

Our experience puts you in the strongest position.

Extensive experience that reaps rewards for your business


We know that the validity of an important patent can be a key commercial concern. We will provide you with tactical advice and expert help to promote your interests.

Sometimes a competitor patent will represent a threat or block to progress and its revocation or amendment is necessary. Oppositions to European patents require the use of the Opposition procedure at the European Patent Office, which allows the validity of granted European patents to be challenged centrally. Our attorneys are well versed in preparing and filing such oppositions. They will determine the commercial relevance of the patent and any perceived weaknesses, and then advise on a suitable strategy for achieving a successful outcome.

Defending your patents

You may also find yourself on the receiving end of revocation or opposition proceedings from others seeking to revoke or amend a patent that belongs to you. In these circumstances, our experienced attorneys will analyse the strengths and weaknesses of the third party’s arguments to help defend your patent.

Our attorneys have extensive experience of reviewing and preparing oppositions and responses, including representing clients in multi-opponent proceedings. We can help provide scientific evidence, expert witness statements, prior art searching strategies and compelling legal arguments based on the most up-to-date case law.

For help and advice around opposing or protecting a patent, get in touch. We will be happy to assist.

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