Apply for a patent in Norway

To apply for patent protection in Norway, you file a patent application to the Norwegian Industrial Property Office.

Send your application via Altinn

For Norwegian residents and companies operating in Norway: for reasons of security and traceability, we recommend that you file your patent application and related correspondence online via Altinn. You will receive a receipt immediately.

Correspondence in connection with an application or registration

We reccomend that you use the correspondence form in Altinn. You will receive a receipt immediately.

If it is not possible for you to use Altinn, you can send an e-mail to

No Norwegian personal ID number?

To send in your application via Altinn you need a Norwegian personal ID number. If you do not have such a number, you can use the application form in PDF format or ODT format. You can print and send this form to the Norwegian Industrial Property Office by post, or as an attachment to an e-mail. See contact details at the bottom of this page.

It is important that the form is filled out correctly when you file your application. You can not change it at a later date to include information that was not specified in the application when it was first filed.

The application must include the following

  • Description: you must describe your invention in full and in such a manner that a trained person would be able to execute the invention based on this account. The description should also include examples showing different versions of the invention if this is relevant.
  • Patent claims: a patent claim is a definition in words of what you want to protect in the patent.
  • An abstract or short summary of the description and claims. The abstract serves as technical information and does not fulfill any function with regards to the protection of your invention.
  • Drawings: the application should also include drawings if this is necessary to understand the invention.

You may only apply for one invention in each application. If you have several inventions, you must file a new application for each invention.

You may not alter your application after it has been filed. It is therefore important that you describe the full extent of your invention at first filing.


Language used in application: You can file your application in English or Norwegian. It is important to note that the language choice you make when filing your application with the Norwegian Industrial Property Office (NIPO) can not be changed. If you file your application in English, the patent will be granted in English. To obtain provisional protection for a patent application in English, you must translate the claims into Norwegian and they must be published by the NIPO.

Language used in proceedings: NIPO uses Norwegian in the examination process, but if the patent application is filed in English and you request the proceedings to be carried out in English, the proceedings shall be conducted in English. You may also request proceedings in English when you submit your application in Norwegian. In this case, NIPO will deliver written opinions and investigation report in English.

Provisional protection for your patent application

You receive provisional protection for your patent application once the application has been made publicly available, 18 months after you first submitted your application (or from the priority date). If you wish the application documents to be made public earlier than 18 months you will receive provisional protection from this earlier date.

If you file your application in English, the patent claims must be translated into Norwegian to obtain provisional protection.

  • Read more about provisonal protection - link

How long does a patent last?

You may keep your patent in force for up to 20 years from the date you filed your application.

To keep it in force you must pay annual renewal fees. If you do not pay the annual fee, your patent will no longer be valid.

Under certain circumstances you may apply for a further five years protection for pharmaceutical and plant protection products.

Once your patent has expired, anyone may exploit the invention. However in certain cases, the rights of others to exploit the patent may be limited by other legislation. It may for example go against good business practice under the Marketing Control Act or be subject to protection under copyright law.


You will find the following forms in PDF format on the Forms page

  • Declaration of Right to the Invention
  • Application for grant of a Supplementary Protection Certificate (SPC)
  • Filing of documents translated in connection with validation of EP patents
  • Patent pledge
  • Notification of change in ownership/merger
  • Power of Attorney
  • Change of name and address
  • Notification of a licence
  • Other amendments to the register

Need help to formulate your application?

Patenting is a complicated field where it is easy to make mistakes. If you have limited experience with patenting or limited time to work on your application, you should consider using a professional patent agency or patent attorney. A patent agency can help you prepare and formulate your patent application. Strict requirements and deadlines apply. A patent agency will assist you in monitoring these deadlines, and various payments such as annual fees.

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