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Key practice areas
Intellectual property
Patent disputes
Trade mark disputes
Trade mark
Patent
Trade mark prosecution - patent & trade mark attorney firms
Trade mark prosecution - law firms
Firm overview

V.O. is one of the larger independent Intellectual Property firms in Europe. We offer services in patent and trademark protection, as well as market and engineering intelligence in terms of IP. These include, for example, prosecution and litigation support before the national and European patent offices and courts, such as before the Unitary Patent Court by our team of European patent litigators.

We have wide expertise and many years of experience in Chemistry, Electronics, Life Sciences, Mechanics and Physics. More than 70 attorneys support clients worldwide to maximize the value of their intellectual property.

Clients range from tech starters and midsized innovators to knowledge centers and multinationals. They include leading national and international companies and institutes. With eight offices in the Netherlands, Belgium and Germany, we operate in a global network of professionals.

Practice Areas & Sector Specialisations

Sector expertise

  • Additive manufacturing (3D printing)
  • Artificial intelligence
  • Automotive
  • Aviation and aerospace
  • Biomedical engineering
  • Biomedical technology
  • Biotechnology and biochemistry
  • Chemical engineering
  • Electronics
  • Energy and sustainability
  • Engineering
  • Environmental technology
  • Food and beverages
  • Green tech
  • Industrial manufacturing
  • Life science
  • Material sciences
  • Medical devices
  • Medical diagnostics
  • Medical technology
  • Medicines
  • Nanotechnology
  • Oil and gas
  • Organic and inorganic chemistry
  • Pharmaceuticals
  • Physics
  • Renewable energy
  • Robotics
  • Rope and fishing industry
  • Telecommunication
Address:
Carnegieplein 5
The Hague
2517 KJ
Tel:+31 70 416 67 11 Email:Contact Us Web Address:http://www.vo.eu

IPS Sponsored

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2026 Edition
Patent prosecution
Tier 1
11 firms ranked
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Tier 1

Arnold & Siedsma
7 practice areas
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De Vries & Metman
3 practice areas
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NLO
3 practice areas
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VO
7 practice areas
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Tier 2

EP&C
3 practice areas
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Tier 3

AOMB
5 practice areas
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Patentwerk
3 practice areas
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Trade mark prosecution - patent & trade mark attorney firms
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Chiever
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Tier 2

Arnold & Siedsma
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Tier 3

Abcor
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VO
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VO
Overview

VO is a distinguished attorney firm in the Benelux region. The firm specialises in IP protection and portfolio management work, with a strong team of patent attorneys to deal with a range of technical fields, most notably chemistry, biotechnology, and engineering. Most of its IP practitioners are based in the Netherlands. The firm has a large team of experienced European patent attorneys in chemistry and electronics.  

Notable patent practitioners: Herman Witmans, Leo Jessen, Bernard Ledeboer, Michiel van Rooij and Annemie Jaeken. Otto Oudshoorn, Hajo Kraak, Marco Molling, and Huub Maas. Mark Einerhand, Frits Schut, Bettina Hermann, Jasper Groot Koerkamp, Marco Box and Johannes van Melle.  

Notable trademark practitioners: Noëlle Wolfs and Raquel Alvarez.  

Notable transactions practitioners: Nick Oostenbroek.

Testimonials

2026

"The filing/prosecution and administration of patents is handled in a professional, timely, cooperative, flexible and friendly manner."

"The work shows in-depth knowledge and the capability to explain complex or detailed matter."

Teun van den Heuvel

"Teun supports us in a friendly, cooperative and timely manner while showing in-depth knowledge and is capable of explaining complex or detailed situations, regulations and considerations in a clear manner."

 

2025

A client likes the team's "quality and responsiveness".

"They provide tier 1 input and are excellent sparring partners."

"High quality and excellent strategical advisers."

"Excellent in [writing] claims."

"Knowledgeable, proactive and easy collaboration."

"Consistently good value."

"Responsive. A safe pair of hands. Pleasant to work with."

"Excellent technical ability and understanding of patent law together with understanding of business strategy."

"Very responsive, very competent, quality work, and competitive on cost."

"Very good industry knowledge, knowledge of our company, and good advice for the size of our portfolio and deals."

 

Jasper Groot Koerkamp

"He is good and knowledgeable."

"Pragmatic, fast and just very good."

 

Jetze Beeksma

"Jetze Beeksma is awesome to work with."

 

Kasper Haak

"Kasper is a fantastic [patent] professional in terms of content."

Linked Reviews
Patent

The firm provided drafting, patent prosecution and strategic advice for TNO, AB Mauri and Veolia Water Systems. EPO opposition proceedings and freedom-to-operate analysis were also completed for the biotechnology sector.  

Trade mark

Case highlights include trade filings, EUIPO oppositions and strategic advice on infringement cases for the chemicals and clean technology sectors.  

13 results13 results
In an exclusive interview, Bernard Ledeboer reveals how a Consolid-backed group of firms wants to expand across Europe, invest in AI and centralise operations to compete at the top tier
V.O. introduce Bernard Ledeboer as the new chairman of V.O. Patents & Trademarks
Read the latest intellectual property law and practice articles written by firms and Managing IP's research team
After a seven year fight, the EU General Court has ruled that world famous football star Lionel Messi may register a logo including his surname MESSI as a trade mark for sports equipment and clothing
Resolution Chemicals v AstraZeneca B.V. and Shionogi (Supreme Court of The Netherlands, The Hague, June 8 2018) deals with the extent of the protection that is conferred by patent EP0521471 (EP 471), for rosuvastatin, a new cholesterol inhibitor.
Denim giant Levi Strauss & Co has recently won a trade mark infringement case against Dutch retail chain Hema concerning its famous V-shaped stitching on the back pockets of its jeans.
Cialis® is a pharmaceutical product for the treatment of erectile dysfunction developed by Lilly ICOS, a joint venture of ICOS Corporation and Eli Lilly and Company.
The holder of word mark JOY, Jean Patou Worldwide, filed an opposition against the EU registration of the mark HISPANITAS - Joy is a choice.
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