Arnold & Siedsma

Arnold & Siedsma is an all-round service provider for the protection of intellectual property. Since 1920 your creations have been our motivation. We have 100 years of experience in the legal protection of intellectual property of inventions, trademarks and designs for individuals as well as for large multinationals, in the Netherlands and abroad. In addition to our offices in the Netherlands, Germany, Belgium and Switzerland, Arnold & Siedsma has an extensive global network of agents so that we can protect your rights anywhere in the world.

Arnold & Siedsma has more than 60 in-house technical and legal experts with knowledge of all the key innovative sectors, from biotechnology and pharmaceuticals to semiconductors and software. Each client is assigned a patent attorney who specialises in the relevant, specific discipline. Our trademark and design attorneys are the best partners for all issues related to your trademarks or protecting the unique design of your products. Our IP attorneys at law can help you with anything related to legal procedures, such as enforcing your rights.

ISO 9001 certified

For the past 100 years, we have been a reliable partner for our clients with regard to all IP issues. In 2015 we became the first large Dutch IP agency with foreign offices to be ISO 9001 certified. This certification is valid for all our offices in the Netherlands and abroad. We are proud of our ISO 9001 certification because it represents what our firm stands for: say what you do, do what you say, prove it.

Methodology

At Arnold & Siedsma we believe in customised work and this can be seen in the way we operate. You can count on our personal attention, a fixed account manager and a regional office in your area.

The lines of communication with our specialists are short and personal. Service is our top priority. We stay in close touch with our clients so that we can provide you with a fast and responsive service. With offices throughout the Netherlands and Belgium, our specialists are always within proximity. At Arnold & Siedsma you will be assigned one or two dedicated account manager(s). The long-term relationship ensures that they know your business and strategy, which in turn means that they will be able to give you the correct advice for your business, in line with your multi-annual planning. Your account manager will maintain regular contact with you. The protection of your innovation is of great economic value, but can also be costly. This is why, at Arnold & Siedsma, we attach great importance to clear communication before, during and after each procedure.

Because we are a full-service provider, we have in-house specialists from all IP disciplines. Our patent attorneys, trademark and design attorneys and lawyers work closely together. We can pull together a team from several disciplines for our clients so that problems and issues are communicated between the different disciplines quickly, seamlessly and without unnecessary costs. Arnold & Siedsma is uniquely positioned as a service provider in the Netherlands thanks to this team-based approach.

Sectors

Our patent attorneys have years of experience in supporting companies in various sectors and are therefore up-to-date with developments in your discipline. This technical knowledge and experience guarantee the optimisation of your rights. The main sectors in which Arnold & Siedsma is active are chemistry and pharmacy, electrical engineering and physics, mechanical engineering, biotechnology and food, materials and software. Our experienced specialists can assist you with the protection of your intellectual property in these sectors.

Contact details

Arnold & Siedsma
Bezuidenhoutseweg 57
The Hague 2594 AC
Netherlands

Professional contacts

Other offices

  • Amsterdam
  • Antwerp
  • Breda
  • Brussels
  • Eindhoven
  • Enschede
  • Leeuwarden
  • Munich
  • Nijmegen
  • The Hague
  • Zug