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


Managing Intellectual Property 2017

“The most competent of the firms ranked,” says one market commentator. In its strong team are two IP stars, Valborg Kjartansdóttir and Magnús Haukur Magnússon. One client uses the firm because of its “strategic approach and good international network. Another client sas: “they are precise and punctual.”

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


Chambers 2017 

Valborg Kjartansdóttir earns great accolades for her technical abilities and recently helped Uni-Charm to register its BODYFIT trade mark on appeal. Sources describe her as “extremely academic and skilled in what she does,” and as someone who “understands the nuances needed for providing a defence to objections raised by Icelandic registries.”

Legal 50

Leading individuals TMT and IP 2017
Valborg Kjartansdóttir Sigurjónsson & Thor ehf.

Recommended Lawyer 2017
Valborg Kjartansdóttir Sigurjónsson & Thor ehf.







WTR 1000 2017

Forming one of the most experienced IP pairings in the region are Valborg Kjartansdóttir and Magnus Magnússon. Kjartansdóttir has been a partner at the firm for well over two decades, and has also occupied many high-level positions in the Icelandic Bar Association and the Association of Icelandic Trademark and Patent Agents; she knows the local IP landscape inside out. So too does Magnússon, a Supreme Court attorney with a finely honed understanding of trademark and competition law.

WTR 1000 2016

he firm hit the headlines when it represented Starbucks before the Icelandic Board of Appeal in a matter concerning the issuance of the CAFFE VERONA mark. Significant work for Japanese brand Uni-Charm was also widely reported in the press. Representing both of giants was the quick-witted Valborg Kjartansdóttir; the consummate professional deploys her longstanding experience to untangle knotty scenarios.