On June 1, one year after the date when patents with unitary effect became effective in the European Union (EU), the European Patent Office (EPO) announced that it had registered more than 27,500 unitary patents, representing about 25% of all European patents granted over the past year. The EPO also reported that the Unified Patent Court (UPC) has received a total of 373 case filings since that court first became operational one year ago, although news reports indicate that technical issues have caused problems for some parties appearing before the EU’s newest patent court.

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