Sakari Salonen

Partner, Member of the Finnish Bar

I am the head of our leading Intellectual Property service. I have over ten years` domestic and international experience in protecting, commercialising, and enforcing intellectual property rights. This includes having a successful track record in resolving complex patent, trademark, design, copyright, advertising, licensing, and franchise disputes for household name clients in virtually every major industry. My practice also covers unfair competition, consumer and marketing law, anti-counterfeiting, employee inventions, trade secrets and commercial IP agreements, such as licensing, franchising and distribution. I also advise clients on IP strategies and trademark prosecution.

As a former jazz musician, I really enjoy being on stage, which is why I`m an active lecturer in my field. I have published several articles on intellectual property and marketing law in legal journals and our own CastrenBlog. Legal directories, such as Chambers Europe and Global, the Legal 500, Managing IP, World Trademark Review and IAM Patent 1000, rank me among Finland`s leading experts in IP.

Latest references

We successfully represented BMW in an exceptionally long dispute over whether the spare rims sold by the defendant and the hub caps included in them infringed BMW’s trademark and design rights. The Market Court found that the sign used by the defendant caused a likelihood of confusion with BMW’s trademarks. The defendant had used the sign on the hub caps and in the marketing of the hub caps and rims, leading the Market Court to find that the defendant had infringed BMW’s trademark rights. The defendant admitted to infringing BMW’s Community design but denied the related injunction claim. However, the Market Court found that there was no particular reason to refrain from issuing an injunction. The Market Court prohibited the defendant from continuing to infringe BMW’s trademarks and Community design and ordered the defendant to alter or destroy the products and marketing materials that infringed BMW’s rights. Furthermore, the Market Court ordered the defendant to pay BMW EUR 70,000 in reasonable compensation and EUR 80,000 in damages for the trademark infringements, as well as EUR 7,000 in reasonable compensation and EUR 8,000 in damages for the design right infringement. The amounts can be considered exceptionally high in Finland. Additionally, the Market Court ordered the defendant to pay a significant portion of BMW’s legal costs with interest on late payment. In its decision of 11 March 2025, the Supreme Court of Finland did not grant the defendant leave to appeal, and also decided that there was no need to seek a preliminary ruling from the Court of Justice of the European Union. Thus, the Market Court’s judgements (MAO:494/18 ja 517/2023) are final. In addition to the main dispute, BMW demanded in a separate proceeding that one of the defendant’s trademark registrations be revoked. A total of three separate legal proceedings were conducted in the Market Court regarding the revocation. The defendant’s trademark registration was ultimately revoked.
Case published 9.5.2025
We are advising DNA Plc in brand protection and intellectual property enforcement matters globally. Our intellectual property team manages DNA’s global trademark portfolio, including registration, prosecution, opposition and enforcement. We also advise DNA in questions concerning consumer and marketing law, unfair competition, social media, domain names and cybersquatting. DNA Plc is one of Finland’s leading telecommunication companies. DNA offers connections, services and devices for homes and workplaces, contributing to the digitalisation of society. The company has approximately 3.7 million subscriptions in its fixed and mobile communications networks. In 2024, DNA’s total revenue was EUR 1,100 million, and the company employs about 1,600 people around Finland. DNA is part of Telenor Group.
Case published 7.5.2025
We successfully represented Onses Finland Oy before the Finnish Market Court in an exceptionally extensive dispute concerning alleged trademark infringement and unfair business practice. Our client, Onses Finland Oy, is a Finnish sports drink company and the owner of the sports drink brand ONSE. In the spring of 2023, the Polish beverage company OSHEE Polska Sp. z o.o. filed legal action against our client, alleging that the ONSE trademarks and product packaging infringed the OSHEE trademarks. The plaintiff’s secondary claims concerned alleged slavish imitation of the OSHEE sports drink packaging and exploitation of the reputation of the plaintiff. The plaintiff based its suit on registered trademarks as well as allegedly established and reputed figurative and three-dimensional trademarks. The Market Court rejected all of the plaintiff’s claims. The Market Court held that the marks invoked in the suit were neither established nor marks with a reputation in Finland. As regards the registered trademarks, the Market Court found that there was no likelihood of confusion between the OSHEE and ONSE trademarks. As to the secondary claims, the Market Court held that the sports drink packaging used by the plaintiff was a normal beverage bottle, the design of which was partly determined by functional factors. The Market Court also found that there were several blue sports drinks available on the market and that the plaintiff’s product was not the first blue sports drink on the market. The plaintiff failed to show that its product packaging was original or well-known to the average consumer at the time of the launch of our client’s ONSE sports drink product, and the Market Court thus rejected the claims on slavish imitation and exploitation of reputation. The Market Court ordered the plaintiff to pay all of our client’s legal costs with statutory interest.  In its decision of 28 March 2025, the Supreme Court of Finland did not grant OSHEE Polska leave to appeal. Thus, the Market Court’s judgment (MAO:280/2024) is final.
Case published 4.4.2025
We successfully represented Arctic Biomaterials Oy before the Finnish Market Court in an extensive dispute concerning alleged patent infringement and invalidity of the patent-in-suit. Our client has invented next-generation bioabsorbable composites that are engineered with Arctic Biomaterials’ X3 bioactive natural mineral fibers, offering robust, bioactive reinforcement for orthopedic implants. These advanced composites empower customers to create high-strength bioabsorbable solutions for the most demanding applications. Back in 2019, Purac Biochem B.V. alleged, among other things, that our client’s Evolvecomp product had infringed Purac Biochem B.V.’s European patent validated in Finland protecting a biocompatible composite and its use. Purac Biochem B.V. filed a preliminary injunction against our client under the Act on Securing the Provision of Evidence in Civil Cases Concerning Industrial Property Rights and Copyright (344/2000). The Finnish Market Court issued an ex-parte injunction against our client on 2 April 2019 (MAO:150/19) and a final injunction on 19 February 2020 (MAO:59/20). Our client had disputed Purac Biochem B.V.’s patent infringement claim from the beginning and claimed that the patent-in-suit was invalid. After five years of litigation, the Finnish Market Court handed down a ruling in the joined invalidity and infringement cases on 10 October 2024 (MAO:560/2024 and MAO:561/2024) declaring Purac Biochem B.V.’s patent invalid and dismissing Purac’s infringement action against Arctic Biomaterials. Also, the preliminary injunction based on an alleged patent infringement imposed against Arctic Biomaterials was cancelled. The Market Court declared Purac Biochem B.V.’s patent invalid due to a lack of inventive step. The Market Court applied the could-would method for determining whether the patent-in-suit is inventive or not. The could-would method is based on determining whether a person skilled in the art would (not simply could, but would) have made a specific improvement to prior solutions, based on the available prior art. The Market Court ruled that it would have been obvious to a person skilled in the art to solve the objective technical problem of the patent-in-suit in the manner presented in claim 1, using as a starting point the closest prior art (prior patent publication) and combining it with the teaching of another prior art publication. The decision is final.
Case published 29.1.2025
Valio is a food company with the courage to change with the times. Valio’s road to growth and towards the innovative transformation of the food industry is supported by its long-standing business law partner, Castrén & Snellman. Juha Hölttä became Valio’s General Counsel at a time when the company kicked its new strategy into a higher gear. ‘In the past two years we have made several significant market initiatives and expanded our business from food production to other areas of the value chain. By acquiring Heinon Tukku, we now provide a new kind of added value to restaurants and professional kitchens through our Valio Aimo ® wholesale business. And our joint venture with St1, Suomen Lantakaasu Oy, will enable us to reach our goal of turning manure into biogas for heavy transportation,’ Hölttä describes some of the milestones of the new strategy. In addition to expanding into new business areas, Valio continues to build a more sustainable dairy business alongside seeking international growth from plant-based products. Valio has invested in the international growth of its Oddlygood ® brand through incorporation and gained additional product development expertise through the acquisition of Gold&Green. Carbon footprint of milk reduced by new business operations Dairy products are at the core of Valio’s business, and the company develops this strong foundation not only through product innovation but also at the beginning of the food chain. ‘Who could have foreseen that dairy farm manure could become one way of tackling climate challenges? Our planned biogas plants will use manure and agricultural by-products to produce renewable liquefied biogas for use as transportation fuel,’ says Hölttä. ‘Valio is aiming for a carbon-neutral milk chain by 2035. We are making major reforms in our operations in order to make this happen.’ The sustainability programme for Valio’s 3,700 dairy farms has been expanded, and it now includes the preventive and systematic healthcare of cows as well as actions related to grazing, the climate and biodiversity. ‘Appreciation for locally produced food is on the rise, which means that sustainability questions are local as well. This is a good trend, as it makes it easier for us to make a difference.’ ‘Strategic help even in difficult circumstances’ The service-mindedness of lawyers is key in implementing a growth strategy. Castrén & Snellman Attorneys is a long-standing partner of Valio, and the relationship between the two is tight. ‘At Valio, we are always exploring new business opportunities, and us lawyers are tasked with assessing these opportunities. My philosophy as the General Counsel is that my door is always open. Together we can evaluate how to solve and implement new initiatives. In this job, you must be curious, broad-minded and business-oriented,’ summarises Hölttä. Hölttä’s legal team of five people is supported by experts from Castrén & Snellman. The key to successful partnership is that both parties are familiar with each other’s business operations and ways of working. ‘Castrén & Snellman knows us well, and they maintain an up-to-date overview of our situation, which I highly appreciate. It means that we are able to tackle tricky situations together quickly even in difficult circumstances.’ A joint fast reaction was needed, for example, when Valio exited the Russian market after the country launched its war of aggression on Ukraine. ‘The responsible thing was to leave quickly but in a controlled manner and by repatriating our investment as opposed to leaving an operational food production facility in the hands of a country that was waging war.’ A shared vision of sustainability Valio – Together we make life better A Finnish food company Approx. 4,600 employees Owned by 13 Finnish dairy cooperatives Finland’s most sustainable brand in the Sustainable Brand Index study Read more about sustainability at Valio Castrén & Snellman – Building sustainable success stories Forerunner of demanding legal services 300 employees Owned by its partners ‘We help our clients build sustainable success stories and achieve their sustainability goals.’ Read more about sustainability at Castrén & Snellman Shared success stories of Valio and C&S Global Brand Portfolio Management and IP Enforcement Purchase of Gold&Green’s Brand, IPR and R&D Function Joint Venture for Biogas Production with St1 Sale of Russian Operations Acquisition of Heinon Tukku Significant Growth Funding Round Competition Damages Case Defending Against Environmental Permit Challenge at the Appellate Level
Case published 4.5.2023
We advised Huhtamaki in the sale of its operations in Russia to Espetina Ltd. The transaction included four manufacturing units in Russia, employing a total of 724 people. The cash and debt free sales price was EUR 151 million. As a result of the sale, Huhtamaki expects to book a gain of approximately EUR 15 million in its third quarter. Huhtamaki is a key global provider of sustainable packaging solutions for consumers around the world. Its 2021 net sales totalled EUR 3.6 billion. Huhtamaki Group is headquartered in Espoo, Finland and its parent company, Huhtamäki Oyj, is listed on Nasdaq Helsinki Ltd.
Case published 9.9.2022
We advised Valio in its negotiations on the divestment of Valio’s Russian operations to Velkom Group. The transaction includes Valio’s Russian operations and the processed cheese factory in Ershovo. The Viola® brand processed cheese sold and produced in Russia is also part of the transaction. Product brand rights to the Valio Viola® fresh cheeses sold in Finland and produced by Valio in Finland are not included in the transaction. In 2020, Valio’s net sales in Russia were EUR 87 million and accounted for approximately 5 per cent of Valio’s global net sales of about EUR 1.8 billion. On 7 March 2022, Valio decided to withdraw from operations in Russia. With this transaction, all Valio’s operations in Russia end immediately. Valio exports products to some 60 countries around the world. The total value of Valio’s international operations and exports is about EUR 750 million annually, i.e. approximately 40 per cent of Valio’s total net sales.
Case published 26.4.2022
We are advising Valio, one of Finland’s premier food companies with more than a century of product development experience, and its subsidiary Oddlygood Global (OGG) in relation to OGG’s first round of financing. OGG will be receiving a EUR 25 million investment into the company from Mandatum Asset Management. Valio will continue as OGG’s majority shareholder after the investment. OGG develops and markets plant-based products under the Oddlygood™ brand, including oat drinks for coffee and products used in cooking and baking. The sales of Oddlygood™ products have doubled each year and OGG’s global growth potential is even larger. Currently, Oddlygood™ products are sold in Finland and Sweden, as well as the UK, USA, Russia and the Baltic countries. Mandatum Asset Management (MAM PE) is a Finnish private equity investor focusing on significant minority investments in Nordic growth companies with proven business models. As an active owner with an experienced investment team, MAM PE can provide OGG with more strategic expertise in global consumer products and further support its growth in international markets. Through its investment, MAM PE will become a minority shareholder in OGG. Valio is a Finnish dairy and food group founded in 1905 and is owned by Finnish regional dairy co-operatives. Valio has subsidiaries in Russia, Sweden, the Baltics, the USA and China. It had net sales of EUR 1,787 million in 2019 and employs over 4,000 professionals.
Case published 17.12.2021