Ms. Valborg Kjartansdóttir graduated as a lawyer from The University of Iceland in June 1984. In 1985 she started to work at Sigurjónsson & Thor and became a partner in January 1989. She is a member of FICPI, AIPPI, ECTA, Marques, Inta, The Icelandic Bar Association and an overseas member of ITMA and LES. She served on the board of The Association of Icelandic Trademark and Patent Agents as a treasurer 1989-1999, from March 2001-2002 and as a chairman from 2002 – 2007. Valborg is an European Patent Attorney and she has frequently commented on changes in the law and/or regulations relating to intellectual property.

She has lectured on Trademark Law at The University of Iceland.

Valborg Kjartansdóttir was invited to publish her profile under the section Women in law profiles published on the Chambers and Partners website in May 2012. Click here: Chambers – Valborg


Current Intelligence article published on April 22, 2014  in the Journal of Intellectual Property Law & Practice that can be accessed from the Oxford Journals. Full article can be viewed here

Chambers and Partners

Valborg is ranked Band 2 in Chambers Europe 2021

Legal 500

Leading individuals TMT and IP 2021

Valborg Kjartansdóttir Sigurjónsson & Thor ehf.
Recommended Lawyer 2021
Valborg Kjartansdóttir Sigurjónsson & Thor ehf.

Word Trademark Review

Valborg is listed as a WTR Global Leader and Recommended Individual 2021

Managing Intellectual Property 2021

Sigurjónsson & Thor is highly recommended for trade mark protection and soft IP disputes. IP stars Valborg Kjartansdóttir and Magnús Haukur Magnússon are key contacts in the firm. The firm acted in a number of Office proceedings including representing MasterCard in a trade mark opposition.

Valborg Kjartansdóttir was included in IP STARS Top 250 Women in IP 2017 and 2018. This list recognises female IP practitioners in private practice who have performed exceptionally for their clients and firms in the past year.