15 June 2026

Mathys & Squire announces senior promotions across UK offices

Mathys & Squire is delighted to announce a series of senior promotions across our UK offices.

The promotions reflect our continued dedication to strategic growth as a firm, as well as the value we place on career progression.

In recognition of their hard work, the following have now been appointed as Partners:

  • Adam Gilbertson (Birmingham office) – Adam specialises in the areas of physics, optical and electronic devices, as well as systems, materials and software inventions. Currently, he is assisting in the prosecution of a suite of patent applications on AI technologies. He also has significant experience working with SMEs and spinout companies, providing patentability and infringement opinions for decision making.
  • Leonard Wright (London office) – Leo advises clients, from startups to large corporations, across a broad range of industries with a particular focus on medical devices, computer-implemented inventions and mechanical engineering. He has recently been involved in handling offensive and defensive oppositions at the EPO, and has also advised on a number of litigation cases at the new UPC.
  • Oliver Parish (London office) – Oliver works across a range of technologies in the fields of physics, engineering and software; his recent work has focused on high-tech innovation in quantum computing, photonics and semiconductor technologies. He also has extensive experience in strategic and contentious matters, having advised clients in respect of disputes regarding the infringement and validity of patents and registered designs, as well as patent licensing, IP due diligence, and freedom to operate.

In our London office, the below have been promoted to Managing Associate:

  • Daniel Varley – Daniel advises clients across a broad range of engineering sectors including medical devices, optics, security systems, autonomous vehicles, consumer products, and renewable energy. Alongside his work drafting and prosecuting patent applications, he has extensive experience in securing international design protection.
  • Sarah Linnett – Sarah specialises in the fields of biotechnology and cell biology with a particular emphasis on vaccines, antibodies, gene therapy and stem cells. Her work involves drafting patent applications, managing global patent portfolios and coordinating prosecution across various jurisdictions.
  • Siobhan Durran – Siobhan primarily works in the field of biotechnology and pharmacology and has specialist expertise in small molecule pharmaceuticals, antibody technology and recombinant protein therapeutics. She has experience in the drafting and prosecution of patent applications in the UK, Europe and Worldwide.
  • William Wathey – Will’s work covers a range of engineering, physics and IT technologies, with particular focus on medical devices, software/AI, autonomous vehicles and telecoms. He has extensive experience drafting and prosecuting patent applications in the UK and Europe, as well as handling international patent portfolios and advising clients on wider IP strategies. Will enjoys actively engaging with startup and scaleup ecosystems, regularly providing IP advice to support early-stage companies through funding rounds, valuations and due diligence processes.

In our Cambridge office, two of our Associates have been promoted to Managing Associate:

  • Peter Humby – Peter works in the IT & Engineering team and handles patent matters on behalf of a wide range of applicants, from private inventors, universities and startups to larger corporations, including multinational telecommunications and video games companies.
  • Rachael Martin – Rachael has a broad technical background in biological sciences, spanning diagnostics, therapeutics, nucleic acid-based technologies and bio-based materials. She works with a range of clients including startups, SMEs, universities and large corporations.

Martin MacLean says, “It was with great pleasure that we announce these promotions and recognise the achievements and talent of our new Partners and Managing Associates. Their commitment to delivering excellence and dedication to their clients has shone through during their time with us, and we look forward to seeing how they will continue contributing to the success of the firm. At Mathys & Squire, we are passionate about supporting career progression and rewarding hard work, and this is an important step in the firm’s strategic growth.”

Daniel Varley
Managing Associate
Sarah Linnett
Managing Associate
Siobhan Durran
Managing Associate
William Wathey
Managing Associate
Peter Humby
Managing Associate
Rachael Martin
Managing Associate

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