The patccat classifier for patent claims - EPO edition

!!! This is the EPO/European version of the patccat classifier of patent claims. !!! Note: We use the same approach that we use for USPTO patents. For a detailed description, see https://doi.org/10.5281/zenodo.6395307. Data version: 3.4.0 Authors: Bernhard Ganglmair (University of Mannheim, Department of Economics, and ZEW Mannheim) W. Keith Robinson (Wake Forest University, School of Law) Michael Seeligson (Southern Methodist University, Cox School of Business) Please cite the following paper when using the data in your own work: Ganglmair, Bernhard, W. Keith Robinson, and Michael Seeligson (2022): "The Rise of Process Claims: Evidence from a Century of U.S. Patents," unpublished manuscript available at https://papers.ssrn.com/abstract=4069994.