Norway has joined the London Agreement, which significantly reduces translation costs for those seeking patent protection in Norway. With the inclusion of Norway, all of the Nordic countries – Sweden, Denmark, Finland, Norway, and Iceland are a part of the London agreement.
Starting January 1, 2015, European patents filed in English and designating Norway can be validated in Norway by filing a copy of only the granted claims translated in Norwegian. Norwegian patent applications, including national stage entries of international patent applications, can now be filed in English and, at the request of the applicant, all correspondence in relation to the application can be conducted in English. If a patent is granted, only the claims must be translated into Norwegian.
http://www.wipo.int/edocs/mdocs/govbody/en/a_54/a_54_norway.pdf
English language applications may be filed in Iceland and Finland and correspondence may be conducted in English, but the claims and abstract must be provided for publication purposes, normally before examination.
Information on requirements for national stage filings of international applications may be found on the WIPO Applicant’s Guide:
http://www.wipo.int/pct/en/appguide/
http://www.wipo.int/pct/en/appguide/npindex.jsp
General information about the London Agreement may be found by following the link:
http://en.wikipedia.org/wiki/London_Agreement_%282000%29