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Leitzinger Oy

Leitzinger Oy

Leitzinger Oy


Tammasaarenkatu 1

00180 Helsinki


About us

Leitzinger Oy is a medium-sized and agile IPR-agency based in Helsinki, Finland. It was founded in 1935 by Edward Leitzinger, who was born in Russia and moved to Finland in 1917. He was actively involved in the promotion of inventing in Finland, for example, through newspapers and radio programs.

Leitzinger Oy’s services cover all forms of protection belonging to the field of intellectual property rights, in Finland and EU, as well as all over the world. Our clientele includes a variety of different domestic and foreign companies. We have over 80 years of experience in taking care of patent, trademark, design, utility model, and product counterfeit matters. The list of services also includes work related to agreements between companies and various other legal matters.

During the last few years, we’ve paid special attention the startup-field by increasing transparency and tailoring our services to meet the needs of especially small and medium-sized companies. For example, we offer different types of package-deals with fixed prices and we are also one of the partners in the Maria01-startup house in Helsinki. We also utilize artificial intelligence in some of our services resulting to significant savings in fees. 

Practice areas

  • Patents
  • Trademarks
  • Designs
  • Utility models
  • Anti-counterfeiting
  • Domains


  • INTA – International Trademark Association
  • ECTA - European Communities Trade Mark Association
  • SPAY - The Association of Finnish Patent Attorneys
  • AIPPI - The International Association for the Protection of Intellectual Property
  • FACG - The Finnish Anti-Counterfeiting Group
  • STY - The Finnish Association for Industrial Property Rights