The opt-out and its reversibility
UPC and opt-out : definition, advantages and drawbacks
Opt-Out - Unitary Patent - UPC
How to select the European Patent with the unitary effect (Unitary Patent)
Opt-Out - Unitary Patent - UPC
Entry into force of the Protocol on provisional application of the UPC agreement (PAP)
Austrian parliament choses to ratify the pap-protocol
The Protocol on the Provisional Application of the UPC Agreement