2026
"Arnold & Siedsma's IP litigation team combines strong legal analysis with practical, business-focused advice. They get up to speed quickly on the technology and the commercial context, then translate that into a clear strategy that prioritizes outcomes and cost control. I value how they communicate. They provide concise updates, explain options in plain language, and make it easy to make decisions under tight deadlines."
"Arnold & Siedsma’s IP filing and prosecution team is consistently organized, detail-oriented, and easy to work with. They provide clear, practical guidance on filing strategy and portfolio decisions, and they flag issues early, whether that is around claim scope, formalities, deadlines, or jurisdiction-specific requirements."
"Arnold & Siedsma’s IP advisory team gives clear, commercially grounded advice that is easy to act on. They take the time to understand our products, markets, and risk tolerance, then translate complex IP issues into practical options with a recommended path forward."
“Their advice on litigation is always practical and cost-efficient."
"The IP litigation team practice excels in handling intricate legal disputes, offering specialized knowledge and strategic insights that are crucial for navigating complex cases. Furthermore, they have a strong focus on understanding and meeting client needs, ensures personalized service and builds lasting relationships, setting the practice apart in terms of client satisfaction and loyalty."
"The team is very supportive in terms of filings and administration."
"This trademark practice stands out for its mix of strategic insight and cost-effective services. They are always quick to respond and considers the client's budget when providing a strategy."
"We appreciate the team’s pragmatic and solution-oriented approach. Their advice is always clear, commercially minded, and easy to implement. They are responsive, collaborative, and a pleasure to work with."
"This trademark practice stands out for its mix of strategic insight and cost-effective services. They are always quick to respond and considers the client's budget when providing a strategy."
Robbert Keij
"Robbert Keij does well as an IP legal advisor because he combines strong technical understanding with clear, pragmatic legal judgment."
"Robbert distinguishes himself through a mix of accessibility, commercial intuition, and sincere investment in his client’s success."
Remco Van Leeuwen
"Remco always thinks along with the team, and we highly value his practical and business-oriented approach. His advice is clear, actionable, and tailored to our needs. He is responsive, reliable, easy and pleasant to work with."
2025
"Arnold & Siedsma always provides thorough and to-the-point advice."
"Excellent service and knowledge level."
"Fast, good and knowledgeable responses."
"Friendly, collaborative, responsive."
"Quick, knowledgeable, good team quality wise and very agreeable."
"They always provide you the best pragmatic solutions without lecturing you about the case. That works perfectly."
"They are knowledgeable."
"They provide commercially relevant advice which is client centric."
