Meet our people
At the heart of EP&C are dedicated professionals who combine specialist knowledge and shared commitment to our clients' success.
Each of us brings unique expertise and genuine enthusiasm to your innovation journey, whether we're navigating complex legal landscapes or ensuring the path to success runs smoothly. We're dedicated to turning your boldest ideas into tomorrow's breakthroughs.
Marc Barendse
Dutch & European Patent Attorney
European Design Attorney
Marc Barendse
Marc combines curiosity and helpfulness with a rational, critical attitude.
Chelsea Beijer-Kranenburg
Formalities Officer
Chelsea Beijer-Kranenburg
Niels van den Berg
Marketing Communications Coordinator
Niels van den Berg
Sjoerd Bielleman
Dutch & European Patent Attorney
UPC Representative
Sjoerd Bielleman
Sjoerd is an analytical thinker and specializes in high-tech innovations.
Hidde van der Bijl
Trainee Patent Attorney
Hidde van der Bijl
Hidde helps clients by offering tailored advice and solutions for unique ideas.
Joost Boode
Managing Director
Joost Boode
Hendrik Jan Brookhuis
Partner
Dutch & European Patent Attorney
Hendrik Jan Brookhuis
Hendrik Jan is critical, optimistic, with decades of experience supporting clients.
Annemarie de Bruin
Manager People & Organization
Annemarie de Bruin
Sarah Carter
European Patent Attorney
Sarah Carter
Sarah combines biophysics expertise and passion for life sciences to secure IP.
Ranu Chouhan
Formalities Officer
Ranu Chouhan
Michiel Croes
Dutch & European Patent Attorney
Michiel Croes
Michiel not only puts himself in the shoes of a biologist or technician, but also of an inventor.
Sheila Dhonré
Formalities Officer
Sheila Dhonré
Karin Dullaart
Formalities Officer
Karin Dullaart
Houda El Qaiti-Sajia
Formalities Officer Coordinator
Houda El Qaiti-Sajia
Brenda Engels
Formalities Officer
Brenda Engels
Natasja van Esveld
Trainee Formalities Officer
Natasja van Esveld
Natanya Faaij
Formalities Officer Coordinator
Natanya Faaij
Charlotte Geers
Formalities Officer
Charlotte Geers
Lucas van Gorkom
Dutch & European Patent Attorney
UPC Representative
Lucas van Gorkom
Lucas supports clients with tailored IP strategies, bridging technical depth and business impact.
Alexander de Graaf
Coordinator Operations Formalities Officer (COFO)
Alexander de Graaf
Yme Groeneveld
Managing Partner
Dutch & European Patent Attorney
Yme Groeneveld
Yme is known for his attention to detail, creativity, and being a team player.
Marlies Hagebeek
Information Assistant
Marlies Hagebeek
Walter Hart
Managing Partner
Dutch & European Patent Attorney
UPC Representative
Walter Hart
Walter brings extensive experience and unwavering tenacity to his mechanical practice.
Jeroen Helfrich
Formalities Officer
Jeroen Helfrich
Inge Hoekstra
Hostess
Inge Hoekstra
Kees Hollaar
Dutch & European Patent Attorney
Kees Hollaar
Kees enjoys the creative process of aligning IP protection with business plans.
Menno Hollander
Dutch & European Patent Attorney
UPC Representative
Menno Hollander
Menno’s approach is characterized by dynamic, persevering and drive.
Anita Hollenberg-Prins
Receptionist
Anita Hollenberg-Prins
Gerrie Hoogendam
Partner
UPC Representative
Dutch & European Patent Attorney
Gerrie Hoogendam
Gerrie enjoys explaining IP strategies clearly, helping clients succeed, which keeps her energized in her work.
Christiaan Houben
Managing Partner
Dutch & European Patent Attorney
UPC Representative
Christiaan Houben
Christiaan builds long-term client relationships based on trust, and is approachable, analytical, and tenacious.
Daphne Huberts
Dutch & European Patent Attorney
Daphne Huberts
Daphne loves the unique combination of science, patent law, and strategy her role offers.
Mark Jolink
Dutch & European Patent Attorney
UPC Representative
Partner
Mark Jolink
Mark uncovers the core of innovations and creatively protects them, empowering inventors to make an impact.
Glenne Joosten
Management Assistant
Glenne Joosten
Umut Kemaldar
Information Assistant
Umut Kemaldar
Sherral Kertowidjojo
Formalities Officer
Sherral Kertowidjojo
Martijn Kokken
Formalities Officer
Martijn Kokken
Marcel Kortekaas
Partner
Dutch & European Patent Attorney
UPC Representative
Marcel Kortekaas
Marcel combines enthusiasm with extensive experience to craft tailored IP strategies.
Jordi Kox Grande
Partner
Dutch & European Patent Attorney
UPC Representative
Jordi Kox Grande
Jordi believes anticipating cause and effect and what the future might hold is key to a patent application.
Sandra Kruijer
Finance Coordinator/Financial Controller
Sandra Kruijer
Robbert-Jan de Lang
Partner
Dutch & European Patent Attorney
Robbert-Jan de Lang
Robbert-Jan uses his deep tech knowledge and business sense for practical, results-driven solutions.
Marion Limpens
Formalities Officer Coordinator
Marion Limpens
Walter Linden
Trainee Formalities Officer
Walter Linden
Matthijs van der Linden
Dutch & European Patent Attorney
UPC Representative
Matthijs van der Linden
Matthijs thrives on challenges, with passion driving his motivation to go the extra mile.
Marjolein van Lit-Elderson
Dutch & European Patent Attorney
UPC Representative
Marjolein van Lit-Elderson
Marjolein enjoys exploring remarkable inventions and protecting them in the right context.
Anne van Lohuijzen-Pronker
Trainee Patent Attorney
Anne van Lohuijzen-Pronker
Anne specializes in high-tech and medical innovations, supporting clients through precise advice.
Željka Marinković
Formalities Officer
Željka Marinković
Jeroen Meesters
Belgian & Dutch Patent Attorney
European Patent Attorney
UPC Representative
Jeroen Meesters
Jeroen is excited by supporting cutting-edge innovations and helping clients protect their visions.
Hans Mertens
Of Counsel
Hans Mertens
Hans is retired but continues supporting EP&C clients, leveraging his global network.
Simon Van Mierlo
European Patent Attorney
Simon Van Mierlo
Simon combines his deep academic expertise in computer science with a passion for innovation.
Sacha Muijs
Accounts Receivable & Client Data Specialist
Sacha Muijs
Ton van den Nouweland
Facility Services Assistant
Ton van den Nouweland
Ellen Offenberg
Management Assistant
Ellen Offenberg
Tanja Oosterveer
Formalities Officer
Tanja Oosterveer
Hanna Oosterveld
Information Assistant
Hanna Oosterveld
Andrei Otinjac
Formalities Officer
Andrei Otinjac
Mandy van Overeem
Dutch & European Patent Attorney
Mandy van Overeem
Mandy combines her accessible nature with expertise in chemistry and mechanics to help clients.
Thomas Remmerswaal
Associate Partner
Dutch & European Patent Attorney
European Design Attorney
UPC Representative
Thomas Remmerswaal
Thomas is inquisitive, analytical, and takes pride in contributing to developing new inventions.
Rudi Riemens
Partner
Dutch & European Patent Attorney
European Design Attorney
Rudi Riemens
Rudi makes patenting accessible and ensures clients feel confident in their IP strategies.
Johan Roeters
Coordinator Operations Formalities Officer (COFO)
Johan Roeters
Sabine van der Schans
Financial Assistant
Sabine van der Schans
Thomas Segaert
Trainee Patent Attorney
Thomas Segaert
Holger Seitz
Associate Partner
Dutch & European Patent Attorney
UPC Representative
Holger Seitz
Holger is thorough, tenacious, and direct, guiding high-tech clients through the business lifecycle.
Linda Sengers
Marketing Communications Coordinator
Linda Sengers
Ainoul Sewbalak
Trainee Formalities Officer
Ainoul Sewbalak
Jeethendra Shewdat
Application Manager
Jeethendra Shewdat
Charissa Toet
Coordinator Operations Formalities Officer (COFO)
Charissa Toet
Niels Verdoorn
Head of Finance & Business Performance
Niels Verdoorn
Thomas Verduyn
Dutch Patent Attorney
Thomas Verduyn
Thomas is driven by the variety of topics and the challenge of mastering legal language.
Martijn Vermeulen
Partner
Dutch & European Patent Attorney
UPC Representative
Martijn Vermeulen
Martijn's passion lies in transforming complex, technologies into actionable strategies.
Johan Volmer
Dutch & European Patent Attorney
Johan Volmer
Johan leverages his extensive expertise to support chemical and mechanical engineering companies by developing IP strategies for processes, devices, and products that align with their business objectives.
Jasper Vrijenhoek
Dutch & European Patent Attorney
Jasper Vrijenhoek
Jasper finds fulfillment in protecting intellectual property and seeing innovations thrive.
Savannah de Waal
Formalities Officer
Savannah de Waal
Paul Waldekker
Marketing Communications Manager
Paul Waldekker
Stefan Wijker
Trainee Patent Attorney
Stefan Wijker
Stefan thrives on the variety in his work, finding deep fulfillment in guiding inventors on protecting their business.
Laura Willemse
Formalities Officer
Laura Willemse
Isabelle Wolterink
Partner
Dutch & European Patent Attorney
UPC Representative
Isabelle Wolterink
Isabelle has proven that good communication is key to strong patents and enduring relationships.
Madelon van Zijl-Dubbeling
Formalities Officer Coordinator
Madelon van Zijl-Dubbeling
Wendy van Zoelen
Dutch & European Patent Attorney
UPC Representative
Wendy van Zoelen
Wendy thrives on her diverse role, unraveling complex details, providing guidance, and supporting innovators.
Experienced patent attorneys
Our patent attorneys don’t just see patents, they see potential. Trust our team to safeguard your ideas, navigate the complexities of patent law and propel your business forward with confidence. Battling copycats or facing crucial business decisions? We stand ready to champion your ideas and help your business grow.
Business excellence team
Our specialised support professionals, from business development to finance and formalities, work alongside our attorneys to bring strategic insight and collaborative energy to every project. Together, we build a foundation of trust, flexibility and creativity to empower clients to focus on what they do best - innovating for the future.
Plan a meeting with a patent attorney
Wondering how EP&C can help safeguard your ideas? During a meeting with one of our patent attorneys, they will take you through:
The path to protecting your innovation
Addressing any IP concerns you might have
Clear information on the expected costs
Please complete and submit the form to schedule a meeting. We'll contact you as soon as possible to set a time and a date that works for you.