Just plain wrong....
Some of the commentary in this article is just plain wrong.
Firstly, the European Patent Convention is not at all related to the European Union and so existing European patent rights will be wholly unaffected by any Brexit.
Secondly the government has already stated its intention to ratify the UPC around the middle of this year - possibly even before the Brexit vote. In the Commons debates on the statutory instruments for ratification and implementation of the UPC it is clear that the outcome of the Brexit vote will not affect the UPC ratification process per se. The UPC itself would, of course, ultimately suffer should the UK exit the EU.