Our intellectual property specialists
We are an allround IP service provider, meaning that we have in-house experts from all IP disciplines. The communication lines with our experts are short and personal. At Arnold & Siedsma you are assigned one or two fixed account managers. We have offices all over the Netherlands and Belgium so that you always have access to an expert in your area.


Arjen Hooiveld MSc
Partner, European patent attorney, Dutch patent attorney, Belgian patent attorney


Petri van Someren MSc
Partner, European patent attorney, Dutch patent attorney, Belgian patent attorney


Steve Duxbury BSc
Managing partner, Partner, European patent attorney, Dutch patent attorney, Belgian patent attorney


Paul Hylarides MSc
Partner, European patent attorney, Dutch patent attorney, Belgian patent attorney


Nele D’Halleweyn PhD
Managing partner, Partner, European patent attorney, Dutch patent attorney, Belgian patent attorney


Gerwald Verdijck PhD
Managing partner, Partner, European patent attorney, Dutch patent attorney, Belgian patent attorney