In 2023, several law firms really made a name for themselves in EPO patent oppositions. At the top was Elkington and Fife, filing 50+ oppositions followed by D Young & Co. These firms are known for helping companies challenge patents that could be unfair or too broad.

Other big names included Hoffmann Eitle with 40+ oppositions and Maiwald. This mix of firms shows that businesses from different areas are actively protecting themselves from patents that could get in their way. As more companies file oppositions, these leading firms will continue to shape how patents are handled and how new ideas can thrive in Europe.