In relation to a full assignment of rights (transfer of ownership), it should be noted that while Danish law does not attach any particular legal effects to the registration of a change of ownership with the Danish Patent and Trademark Office, the UPC system is based on a presumption that the party being the registered owner is in fact the owner. It is thus important to consider whether to register any change of ownership with the relevant national patent authorities and with the EPO:
- For traditional European patents, a change of ownership is still registrable with the relevant national patent authorities.
- For unitary patents, a change of ownership is registrable in the EPO's Register for Unitary Patent Protection. It should be noted that the Unitary Patent Regulation directly prohibits agreements concerning transfer of unitary patents being subject to registration of the change of ownership in the national patent registers.
- For European patent applications, a change of ownership is registrable in the EPO Register.
The presumption of who is the owner of a European patent will be crucial to the right to bring an action before the UPC and the right to opt out of the UPC system.
For unitary patents, it is important to note that they may be transferred only with effect for all countries where they apply. Thus, it will not be possible to have an ownership structure with one owner in one country and one owner in another country, although this is possible for traditional European patents.
On the other hand, it will be possible to license the unitary patent to different licensees in different countries. This paves the way for an ownership structure where, for example, co-ownership may be coupled with a licensing agreement to ensure that each co-owner is granted a licence for their own country, so as to make the scenario resemble that of different owners in different countries.
With regard to unitary patents, it is also important to note that as far as issues relating to ownership are concerned, they are only subject to the laws of one country, typically the country where the patent applicant has its residence or principal place of business at the time when the patent application is filed with the EPO.
This will be particularly relevant in relation to mortgaging and similar agreements using patents as collateral, including in connection with floating charges. In those situations, it is far from certain that perfection and other requirements are subject to Danish law. Similarly, the relationship between different mortgagees will not necessarily be governed by Danish law.
As a creditor, you also cannot expect a unitary patent to be free and clear of any third party rights such as security rights, just because no rights have been registered in favour of such third party in the register of chattel mortgages in Denmark.
Instead, any issues arising between the parties (such as interpretation of the agreement, breach, termination for cause, etc.) will still be subject to the laws of the same country as the one to which the agreement is subject. The parties will typically have included specific provisions in this regard in the agreement.