DUE DILIGENCE
Understanding what you own — and what it’s worth
Intellectual property is a critical driver of value in many transactions, particularly when patents form the core of a merger, acquisition, or IPO.
While trademarks, copyright, and trade secrets all carry weight, it’s often the power of a well-drafted patent — and its ability to exclude competitors — that underpins a company’s commercial edge.
At PURDYLUCEY, we help clients assess and unlock that value through thorough, strategic IP due diligence.
Insight that informs better decisions
A well-executed due diligence process does more than verify ownership. It gives you clarity on the scope, strength and strategic relevance of your IP — whether you’re investing, acquiring, or preparing for growth. Our team analyses patent portfolios in depth, reviewing prosecution history, legal status, chain of title, and enforceability. We flag any issues early, identify opportunities for improvement, and assess how each asset supports your commercial objectives, both now and into the future.
Experienced, strategic support
Our IP due diligence team brings decades of experience advising clients worldwide across various sectors, including biotech, software, medical devices, and engineering. We also conduct broader patent landscape analyses, helping clients understand freedom to operate, navigate competitive positioning, and mitigate future infringement risks. Whether you’re preparing for investment or planning market expansion, we deliver the insight needed to move forward with confidence.
THE TEAM
Our Due Diligence Experts
“Their reputation among clients and peers speaks for itself.”
“It’s no surprise PURDYLUCEY were named one of Europe’s Leading Patent Law Firms by the Financial Times — their reputation among clients and peers speaks for itself.”
Managing IP - IP STARS
“A safe pair of hands.”
“Barry Purdy handles a lot of our patent cases. We find he is a safe pair of hands, picks up technologies quickly and offers succinct and commercially relevant IP advice to ourselves and our spin-out companies.”
Managing IP - IP STARS
“Exemplary lateral thinking generates novel concepts and successful strategies.”
PURDYLUCEY has been ‘warmly endorsed’ and is described by IAM as a firm that has secured ”a remarkably strong foothold” in the prosecution market, thanks to its bright practitioners.
IAM Patent 1000
“The team truly understand how patent examiners think.”
“PURDYLUCEY hosts a variety of excellent patent professionals across diverse technical expertise. The team truly understand how patent examiners think and provide real added value to clients.”
IAM Patent 1000
“Michael Lucey faultlessly manages the filings and renewal of patent applications.”
“Michael Lucey faultlessly manages the filings and renewal of patent applications. He quickly gets to grips with new technologies, showing his adaptability and determination. He is well respected for his expertise, practicality and business-oriented approach.”
IAM Patent 1000
“Providing excellent advice to patrons across sectors.”
“Life sciences expert Susanne Cahill holds a PhD in molecular pathology and boasts extensive IP experience. Providing excellent advice to patrons across sectors, she works superbly across multiple jurisdictions.”
IAM Patent 1000
“We especially appreciate their practicality.”
“We especially appreciate their practicality. The team has excellent domain knowledge and the capacity to moderate deep technical discussions across a global team of scientists. I have the utmost confidence that their filings are robust and a real commercial asset.”
Managing IP - IP STARS
“Barry Purdy is a leading practitioner in the market.”
“Barry Purdy is a leading practitioner in the market. Patrons appreciate his first-class patent drafting skills and his commitment to securing positive client outcomes. The thoroughness and professionalism of his work is unmatched, and working with him is a pleasure.”
IAM Patent 1000
“We value the access to skilled individuals who manage all aspects of our IP portfolio.”
Managing IP - IP STARS
“Mark offers clear, practical and concise advice on several areas of IP.”
“Mark offers clear, practical and concise advice on several areas of IP, including the more technical and complicated aspects thereof. The contribution Mark has made to the Law Society courses was so welcome that we are delighted to have him on board for all our upcoming IP and technology-related courses, both this year and next.”
Helen Johnson, Barrister
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Attention to detail and a resolutely commercial focus