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Contact details

Allen & Overy LLP
Apollolaan 15
1077 AB Amsterdam
PO Box 75440
1070 AK

Telephone icon+31 20 674 1709
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  Frits Gerritzen



Frits heads Allen & Overy Amsterdam's Intellectual Property team. He is an experienced IP litigator, handling cases concerning the enforcement and validity of intellectual property rights.

He focusses in particular on patents, and has broad experience in handling patent cases in the field of medical equipment, pharmaceuticals and antibodies. His experience includes taking fast and, when needed, pre-emptive measures against IP infringements such as obtaining ex-parte injunctions and seizure measures by the Dutch Customs Service, preventing the import of infringing products.

In addition, Frits provides advice on R&D agreements and technical collaborations in which intellectual property rights play an important role. He has broad experience in drafting and negotiating license agreements and structuring IP portfolios.

Frits was commissioned by the Dutch Ministry of Economic Affairs to educate Dutch companies on the use and optimisation of their patent and IP portfolios in a national three year programme. He is also one of the chief editors of the main Dutch website on IP news ( 


In the 2016 latest edition of Chambers Europe he is described by clients as “"extremely intelligent, able to absorb complex technical issues quickly and extremely responsive”. Quotes in earlier publications  include Frits being described as “creative, direct and responsive” (Chambers Europe 2015) and “exceptional department head” (Legal 500 2015).

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