Marlous Stal-Hilders

Managing partner

Partner since 2004

Trademark and design attorney and legal advisor

  • Trademark law
  • Design law
  • Copyright
  • Contracts
  • Collaboration agreement
  • Transfer deeds
  • Licence agreement
  • Co-existence agreement
  • Non disclosure agreement
Dutch and English

Marlous joined NLO in 1996.



Marlous is engaged in the management of NLO and NLO Shieldmark. She also manages the trademark and design portfolios of several multinationals and big national and international companies in various sectors. She specialises in consultancy relating to portfolio management and strategy. She advises and mediates in cases involving infringement of intellectual property rights and conducts opposition procedures and rejection cases. She also negotiates and draws up relevant agreements, including coexistence agreements and transfer deeds.



Marlous is a registered Benelux trademark and design attorney (1995) and European trademark and design attorney (2000). She graduated from the Faculty of Law at Leiden University (Netherlands, 1994) specialising in Intellectual Property.


Member of

Marlous is a member of International Trademark Association (INTA), Licensing Executives Society (LES), MARQUES, European Community Trade Mark Association (ECTA), The Pharmaceutical Trademarks Group (PTMG), the Dutch Group of the International Association AIPPI and UNION. She is the editorial secretary of the BMM Bulletin and member of the legislation committee which advises various legislative authorities on behalf of BMM. She is also a member of the Legislation and Regulation Committee - Europe Subcommittee of the INTA at European level. In both committees, Marlous advises on new legislation relating to trademark and model law.


More information

Marlous' work for multinational and medium-sized companies calls on all her expertise in the above mentioned areas, especially her work for companies that are actively involved in life science and electronics. She cooperates in teams with patent attorneys from various sections, enabling NLO to assist its clients in all IP fields. Marlous is the author of several publications in magazines such as IAM, Managing Intellectual Property, BMM Bulletin (published by the Benelux Trademark Association) and Elsevier Voedingsmiddelen Industrie.





Fake invoices

Fake invoices are unfortunately a well known problem among trademark owners. A fake invoice is a misleading invoice (or letter) which reffers to a trademark, design, patent or patent application. A payment is requested for a publication in a register or to extend the validity of a registration.They use names like Worldwide database or Trademarks and Patents, Euro IP Register, International Patent & Trademark Database.


More information and examples of fake invoices


Our advice: don't pay. Please contact us is you have any doubts.

NLO Shieldmark wins Award ‘Benelux - Firm of the Year for Trade Mark Prosecution’

NLO Shieldmark is proud to have been voted ‘Benelux - Firm of the Year for Trade Mark Prosecution’ by the highly respected Managing IP magazine. The award was presented on Thursday 10 March 2016 in London.


We wish to thank our clients and fellow professionals for their positive feedback and for believing in our quality and service.