Seppo Laine Oy

Headquartered in Helsinki, Finland, Seppo Laine Oy offers proficient and no-nonsense service in all areas of IP rights. Our services include preparation and prosecution of European, Finnish and US patents. In addition, we provide prosecution of European and Finnish trademarks, as well as IP consulting and in-house services. Our office offers professional services in English, German, Russian, Finnish and Swedish.

About us

Founded in 1979, Seppo Laine Oy employs more than 25 patent and trademark attorneys and agents, with locations in Helsinki and Tampere, Finland. In 2015 we merged with Oy Jalo-Ant Wuorinen Ab, further strengthening our expertise in key technology areas. Our commitment to excellent representation and customer service has resulted in deep, long-lasting relationships with many of our clients.

“We highly appreciate Seppo Laine’s professional and on-time delivered IP services. Our specific needs are always taken into account and handled with great friendliness and flexibility.” – Anne Silventoinen, IP manager, Santen, Europe, the Middle East and Africa.

Our company values reliability, personal service, efficiency, competitiveness and flexibility. Concentrating on clear and precise communication, our goal is to filter out the noise of prosecution and concentrate on helping our clients to achieve favourable results. Our hands-on approach to IP rights protection comprises providing expertise in the relevant technology area and developing a wider understanding of the business role of each of our clients, small or large.


Our European practice is especially strong, including European patent attorneys experienced in all fields of technology. In addition, our in-house US patent attorneys and US patent agents provide representation and patent prosecution services before the USPTO, direct from Helsinki.

We are proficient in conducting searches and preparing freedom-to-operate (FTO) analysis and reports. Several patent attorneys frequently appear at oral proceedings before opposition and appeal boards and assist clients in litigation. We represent clients directly before the EPO, the USPTO and the Finnish, Swedish, German and Austrian offices in the following technology areas:

  • Chemistry and bioscience – headed by Christoffer Sundman, the chemistry and bioscience team provides services in relation to inventions in fields including organic and inorganic chemistry, polymer technology, process engineering, paper and pulp manufacturing, mining technology, pharmaceuticals, semiconductors, biotechnology, microbiology and enzyme technology.
  • Information and communication technology and electronics – Jussi Jaatinen leads our information and communication technology and electronics team. The team’s members are experienced in drafting and prosecuting inventions relating to communication systems, automation technology and embedded electronics, as well as the Internet of Things, user interfaces, three-dimensional printing and consumer electronics.
  • Mechanics – Tatu Ahlskog heads our mechanics team, which specialises in mechanical inventions such as logistics equipment, drive trains, manufacturing, vibration control, construction and optics, as well as marine technology and material handling.

Trademarks and designs

Led by Tom-Erik Hagelberg, our trademarks team offers personal and flexible service with years of experience and enthusiasm. Our services include trademark and design protection and prosecution (both in Finland and internationally), trademark oppositions and infringement issues, as well as IP-related contracts.

We represent clients directly before the EU Intellectual Property Office, WIPO, the Finnish Trademark Office, the Finnish Market Court and the Finnish Supreme Administrative Court.

Other IP rights services

We provide searches, clearances, analysis and opinions, including novelty searches, FTO analysis and patent landscape analysis. We also provide in-house consulting and training on IP rights matters such as advice on IP rights strategy and portfolio management.

Contact details

Seppo Laine Oy
Porkkalankatu 24
PO Box 339
Helsinki 00181

Professional contacts

Other offices

  • Tampere

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