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‘Creative thinking is the key to all innovation.’
Leo Jessen

Leo Jessen

  • Engineering
  • European and Dutch Patent Attorney
  • Partner

Leo Jessen started his career as a patent attorney in 1992 with V.O. He studied Industrial Design Engineering and after passing his attorneys exams Leo studied law.

Leo’s clients are mainly in the field of mechanical engineering. His specialisms are consumer products, medical appliances and ergonomics.

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Together with his clients Leo defines their IP strategy and where appropriate files, prosecutes and defends their IP rights worldwide. This also includes challenging third party rights, licensing and FTO studies.  Leo has a wide experience in patent cases before the court in The Hague and before the EPO.

Leo is actively involved in the training of new patent attorneys in Dutch, European and international patent practice. Furthermore he is an active member (chair) of the IP enforcement and Litigation group of FICPI, the International Federation of Intellectual Property Attorneys.

Working experience

  • Patent Attorney, V.O. (1992-present)
  • Freelance consultant in Ergonomics and product design (1989-1992)
  • Ergonomics Department, Volvo Cars (1989)

Education

  • MSc in Industrial Design Engineering, Delft University of Technology (1989)

Directories

  • Recommended Individual (IAM Patent 1000, 2020).
  • Always performs excellently in the courtroom (JUVE Patent 2020).
  • “Gifted in both prosecution and litigation”, Leo Jessen is “extremely good at building a case” (IAM Patent 1000, 2019).
  • Peers praise Leo Jessen as “a really excellent, strong attorney who’s been around for many years”. Jessen prosecutes applications for a wide segment of devotees, who depend on his aptitude in filing, oppositions and appeals to keep their stress levels low throughout the patent lifecycle (IAM Patent 1000, 2018).
  • Heineken is one of the big names that engage Leo Jessen for his drafting and prosecution talents (IAM Patent 1000, 2017).
  • A key reference for companies in the consumer products sector, Leo Jessen has recently been advising Heineken on the expansion of its patent portfolio (IAM Patent 1000, 2016).
  • Leo Jessen is one of a rare breed, having spent his entire career at a single firm. With V.O. since 1992, the quick-witted strategist advises mechanical engineering clients on how to procure, defend and monetise IP rights (IAM Patent 1000, 2015).
  • Recognized as IP Star (2015, 2014, 2017, 2018, 2019, 2020) by Managing Intellectual Property.
  • Leo Jessen can address the myriad of concerns which arise in the mechanical engineering space (IAM Patent 1000, 2014).
  • “Excellent communicator” Leo Jessen and Bernard Ledeboer are the top mechanical engineering specialists there (IAM Patent 1000, 2013).
  • Leo Jessen is renowned for his creative approach, especially in relation to mechanical patents. Mechanical engineering is his field and he has profound knowledge of consumer products, ergonomics and medical appliances (IAM Patent 1000, 2012).

Professional & Community Activities

  • FICPI: Secretary of the Netherlands section and member of CET Group 7, IP Enforcement and Alternate Dispute Resolution
  • AIPPI
  • AIPLA

Languages

  • English
  • Dutch
  • German
  • French

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News

The lithium-ion battery

It is impossible to imagine our daily life without this invention, which was awarded the Nobel Prize for Chemistry in 2019, and developed by a Brit, an American and a Japanese. The lithium-ion battery is used everywhere, from laptops, cell phones to electric bicycles and cars.Continue reading

Well-prepared for the future

Column by Cees Jansen, former chairman V.O. After 26 years, I have left V.O. I was chairman for the last 12 years, a task that I have passed on to Herman Witmans. This is a good moment to look back.Continue reading

Recommended by JUVE Patent

In May 2020, V.O. was recommended by JUVE Patent in the categories Patent Filing and Prosecution. Listed as recommended individuals are Marco Box, Leo Jessen, Bernard Ledeboer, Otto Oudshoorn and Jetze Beeksma.Continue reading

Events

Webinar: getting started with patents

On 27 August 2020, we will organise the first webinar in a series of six about dealing strategically with your intellectual property. In the webinar 'Getting Started with Patents', patent attorney Henri van Kalkeren will take you through the most important topics about patents, so you can be more profitable with your innovation. Continue reading

IP World Summit 2020

Hilton London Syon Park, Park Road, Isleworth, Brentford, UK

IP World provides the opportunity to network with senior IP professionals from across the Globe, and from global corporates across the high tech, telecoms, software, pharmaceutical, retail, FMCG, online and oil & gas industries. Continue reading

IP Service World 2020

Holiday Inn Munich - City Centre, Hochstraße, München, Germany

Europe’s largest IP Convention & Trade Fair, the IP Service World, is a very unique event. It is the perfect mixture of a comprehensive trade fair and a top-class convention with contributions from leading experts. Continue reading