Experienced Chartered Trade Mark Attorneys & Solicitors with real world IP knowledge

Colleen Washington

Intellectual Property Solicitor

Formerly a partner in a City law firm, Colleen has many years’ experience advising both private and public sector clients on a wide variety of commercial, contractual and IP matters. She has extensive knowledge in IP disputes, including brand enforcement and patent, copyright and design right issues and provides meticulous IP due diligence and expertise during mergers and acquisitions.

Colleen is a dual qualified solicitor in England and Wales and New Zealand and has two degrees in Law and Biochemistry.

Colleen says

“At Sonder & Clay, we understand that protecting Intellectual Property is at the core of safeguarding the value of a business. More than that, what Sonder & Clay provides is a strong and personal client relationship, with a healthy dose of commercial pragmatism and common sense, that enables us to help our clients achieve their objectives.”

Outside of work Colleen is a mother to three very sporty young adults and, when not cheering them on from the sidelines, Colleen enjoys reading contemporary fiction and considers herself something of an amateur conservationist.

My Expertise

IP Disputes

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IP Due Diligence

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Commercial & Corporate

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IP Protection

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Get in touch with Colleen Clay for a free consultation

What our clients say


“Sonder IP look after our UK, European and International IP and Trade marks from an internal perspective, ensuring we are not infringing on others, and vice versa, protecting us. They consistently deliver exactly what we want, in a friendly, uncomplicated and efficient way.”


“We were thrilled with the service – Sonder drafted everything for us, submitted the forms and identified possible issues to look out for. They completed the whole process for us and explained each step in simple to understand language. I would (and do!) thoroughly recommend them for Trade Marks and other IP services.”

©2024 Sonder & Clay IP Limited is regulated and authorised by the Intellectual Property Regulation Board (IPReg), Sonder & Clay Legal Limited is regulated and authorised by the Solicitors Regulation Authority (SRA No. 647576).