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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 (JUVE Patent 2020, 2021).
  • “Leo Jessen is the man to call for no-stone-unturned freedom-to-operate analyses and futureproofed protection strategies. A hugely experienced patent attorney, he plays a valuable mentoring role and is respected in the wider market as an excellent educator” (IAM Patent 1000, 2021).
  • Recognized as Patent Star (2015, 2014, 2017, 2018, 2019, 2020, 2021) by Managing Intellectual Property.
  • 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).
  • “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

Promotion Alexander van Loon

We are very pleased to announce that as of 1 January 2022, European and Dutch patent attorney Alexander van Loon has been appointed Senior Associate. Alexander has been working at V.O. since 2015.Continue reading

Individual accreditations by MIP

After IP Stars, the annual guide from Managing IP (MIP), already recognized our Dutch and Belgian patent practices as ‘Tier 1’ and ‘Tier 2’ Patent Prosecution Firms, respectively, individual distinctions of ‘IP Star 2021’ were awarded in the Fall to Bettina Hermann, Leo Jessen, Bernard Ledeboer, Marco Molling, Otto Oudshoorn and Herman Witmans.Continue reading

In V.O.’s lab: spotlight on the patent attorney

Patent attorneys administer a key amount of the intellectual property — the crown jewels — of your business. Each one is a versatile technician who is expected to be a ‘Jack of all trades.’ What makes a good patent attorney at V.O.? Here follows a character sketch.Continue reading

Events

Business Days Twente 2022

University of Twente, Drienerlolaan, Enschede, Netherlands

Business Days Twente 2022  consists of a series of events aimed at creating and improving contacts between students, post-graduates and alumni on one side, and potential employers on the other. Continue reading

EPO Tech Day 2022: Technologies of Transformation

Tech Day is an annual celebration of innovation, learning and collaboration that takes place at the European Patent Office (EPO). Primarily an internal event until now, Tech Day brings together teams of experts from across the Office to explore a technological theme of special significance. Continue reading

IPBC Europe 2022

The Landmark London, Marylebone Road, London, UK

Europe’s foremost conference on IP value creation, organized by IAM. The event will bring together elite decision makers to discuss key policy, business and legal developments, as well as the best strategies for maximising IP value in the increasingly dynamic European market. Continue reading