Smart search:
Espacenet offers free access to information about inventions and technical developments from the 19th century right up to today.
Accessible to beginners and experts, Espacenet contains data on more than 100 million patent documents from around the world. Supporting information can help you understand whether a patent has been granted and if it is still in force.
In contrast to Espacenet worldwide, this Espacenet interface of Norway allows the use of the Norwegian language for search in Norwegian patents.