Up until this time, France, Belgium, Austria and Sweden ratified the Unified Patent Court (UPC) agreement with now Denmark becoming the fifth one in the race.
The agreement enters into force as soon as 13 member states ratify the proposal.
In Denmark 33.7% of the residents supported the proposal at a referendum held in May.
The referendum came along as the proposal did not gain the necessary 80% backing in parliament.
The unitary patent will finally enter into force presumably only in 2015. It will enable inventors and businesses to gain a patent with unitary effect in all member states except of Spain, Italy and Croatia.
You can read more about the new process on unitarypatent.com.