HLK has a proven track record in EPO opposition proceedings. In particular, HLK consistently outperform EPO averages on behalf of opponents. Over 2011-2020, 89 % of patents opposed by HLK attorneys resulted in a limitation to the opposed patent, with 54 % of those patents being revoked in their entirety. HLK has a number of attorneys who specialise in EPO opposition and appeal proceedings.

Meet the team

Below are the key members of the Oppositions & Appeals team.

Joseph Lenthall

UK and European Patent Attorney

Since joining HLK, Dr Joe Lenthall has achieved a successful outcome in 75 % of the hearings he has handled, acting for both patentees and opponents. These results build on his reputation for success in opposition proceedings established before joining HLK, where he held an almost unbeaten record in oppositions on behalf of a FTSE 100 multinational company.

Alex Rogers

UK and European Patent Attorney

Alex’s recognition in the Legal 500 speaks for itself.

“Alex Rogers has provided thorough, successful representation in several opposition matters for the company. His representation has been second to none.”

“Alex Rogers is technically excellent, very responsive, and knows our business needs very well.”

James Ward

UK, Irish and European Patent Attorney, European Design Attorney

At the time of writing, James Ward has over fifteen years of experience in handling opposition and appeal cases for both patentees and opponents. As opponent, over 80% of the cases in which he has acted have resulted in revocation of the patent, and none of the patents has been maintained as granted. In James’ most successful year, all ten of the inter partes hearings at the EPO resulted in the revocation of the patents he was opposing.

The IAM Patent 1000, 2019, said about James: “James Ward maintains a formidable practice from the firm’s Munich office. His acuity across a diverse range of electronics and communications technologies wins him pan-European renown”.

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Joanna Deas

UK and European Patent Attorney

Joanna has a great deal of experience with opposition and appeals hearings. She regularly attends up to 20 hearings a year and is best known for her excellent reputation for handling oppositions for clients with a very high success rate. Her particular areas of expertise are medical devices and formulation chemistry, and in 2019 she was listed as a Rising Star by IPStars.

David Lewin

UK and European Patent Attorney

“David is an opposition expert with tactical nous. He is excellent without being at all egotistical. With his help we won seven out of nine cases, making a significant difference to our overall negotiation with a competitor company.”

— Matthew Hitching, European Intellectual Property Director, Canon

Insights from our team

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