Rian Kalden graduated at Leiden University and finished a Master (including Intellectual and Industrial Property law at LSE) at Londen University. She started her career joining the Amsterdam Bar with the law firm Stibbe, where she practised for almost 11 years. There she first joined the intellectual property department and turned to company law (focussing on mergers and acquisitions) later on. In 2002 she became a judge at the District Court of The Hague, where she joined the Patent Chamber. After a short period in the criminal division at the District Court of Haarlem, where she was appointed vice president in 2007, she returned to the Intellectual Property Division of the District Court of The Hague mid-2008, from 2009 as head of the Division, where she dealt with all kinds of IP cases, but mostly patent cases. Rian Kalden was appointed judge in The Court of Appeal of The Hague in September 2013 where for 5 years she headed the Division that, among other areas, also covers all IP cases. As a Senior Judge she now primarily deals with patent cases. In July 2018 she was appointed Judge at the Benelux Court of Justice, where appeals from decisions of the Benelux trademark offices are heard. Rian Kalden has been appointed as legally qualified judge at the Court of Appeal of the Unified Patent Court where she will be Presiding Judge of the second panel. She is also member of the Presidium of the UPC. She regularly speaks at national and international conferences on Patent law and related issues.