Tom Liessens
Trademark & Design Attorney at De Clercq & Partners | Antwerp Metropolitan Area, Belgium
Tom Liessens’s Email & Phone Number
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Tom Liessens serves as a Junior Partner and IP Counsel specializing in trademark and design law at De Clercq & Partners. He applies his KU Leuven training to navigate complex intellectual property licensing and registration processes. He supports a European firm founded in 1999 that has grown into a multi-office practice employing over fifty specialists.
BEST APPROACH TO REACH Tom Liessens
Contact him directly via personal email with a targeted proposal explaining how your solutions can streamline trademark portfolio management for his clientele at De Clercq & Partners.
Board Member at Stichting BBMM/FBMM in April 2025 - Present
Trademark & Design Attorney at De Clercq & Partners in October 2015 - Present
IP Counsel at De Clercq & Partners in October 2015 - Present
BMM Certified Trademark & Design Attorney at De Clercq & Partners in January 2018 - Present
Certified Data Protection Officer at De Clercq & Partners in April 2018 - Present
European Trademark & Design Attorney at De Clercq & Partners in October 2019 - Present
Junior Partner at De Clercq & Partners in April 2025 - Present
Lawyer at KPMG Law Belgium in August 2014 - September 2015
Summer Intern at GSJ advocaten in August 2013 - August 2013
KU Leuven, Master's Degree, October 2026
Ghent University, Master’s Degree, October 2026
Ghent University, Bachelor’s Degree, October 2026
Since 1999, De Clercq & Partners has been dedicated to helping businesses protect their innovations and creativity. With offices in Sint-Martens-Latem, Leuven, and Hasselt, we’ve grown into one of Europe’s most trusted intellectual property firms. Our team of over 50 professionals—including patent attorneys, trademark attorneys, legal experts, and paralegals—blends scientific, technical, and legal expertise to deliver exceptional results. What We Do We provide tailored support in: - Patents & SPCs - Trademarks - Designs - Copyright - IP Licensing Whether you need a patent application, help managing trademarks, or representation in complex disputes, we offer personalized advice every step of the way. Our European Patent Litigators are also qualified to represent clients before the Unified Patent Court. Industry Expertise We’ve built strong expertise across key sectors: - Life Sciences: Biotechnology, pharmaceuticals, and diagnostics. - Chemistry: Agrochemicals, polymers, and industrial processes. - Engineering & Software: AI, robotics, medtech, and semiconductors. - Brands & Designs: Consumer products, homeware, and digital media. Our multidisciplinary team ensures every innovation is thoroughly protected, even when ideas cross multiple fields. Awards & Recognition We’re proud to be recognized for our work: - 2025: Koen Vanhalst (IAM Strategy 300), Ann De Clercq and Liesbet Paemen (IAM Global Leaders). - 2024: Patent Firm of the Year (Managing IP, 6th year running), Opposition Procedure Firm of the Year (LMG Life Sciences, 3rd year in a row), and Gold Tier for Patent Prosecution (IAM Patent 1000). In recent years, we’ve consistently earned top rankings from WTR 1000, Leaders League, and others. Why Choose Us At De Clercq & Partners, we’re more than IP specialists—we’re your partner in innovation. Our goal is to make the process straightforward and give you peace of mind, so you can focus on what's most important.
Discover more about De Clercq & Partners
Partner, Patent Attorney at DCP
Patent Attorney at De Clercq & Partners
(March 2001 – Present)
European and Belgian patent attorney; European Patent Litigator, bij De Clercq & Partners
European Patent Attorney at De Clercq & Partners
(June 2019 – Present)
European & Belgian Patent Attorney, European Patent Litigator, Founding partner at De Clercq & Partners, Ann De Clercq & Co, ADC Horses
Managing Partner at Ann De Clercq & Co BVBA
(Dec 1998 – Present)
Of Counsel at De Clercq & Partners
Of Counsel at De Clercq & Partners at De Clercq & Partners
(Jan 2025 – Present)
European and Belgian Patent Attorney at De Clercq & Partners
De Clercq and Partners is a highly specialised firm of European, Belgian and Dutch Patent Attorneys with a strong focuss on life sciences. All our patent specialists are former scientists and hence still have a good feel with research. Combining these technical skills with 20 ...
Partner, European Patent Attorney at De Clercq & Partners, European Patent Litigator (Unified Patent Court, UPC)
European Patent Attorney at De Clercq & Partners
(Feb 2010 – Present)
What is Tom Liessens email address?
Email Tom Liessens at [email protected] and [email protected]. This email is the most updated Tom Liessens's email found in 2026.
How to contact Tom Liessens?
To contact Tom Liessens send an email to [email protected] or [email protected]. (updated on November 07, 2025)
What company does Tom Liessens work for?
Tom Liessens works for De Clercq & Partners.
What is Tom Liessens's role at De Clercq & Partners?
Tom Liessens is Trademark & Design Attorney
What industry does Tom Liessens work in?
Tom Liessens works in the Legal Services industry.
