Understanding About European Patent Filling And Its Importance is a very critical task. In the patent form, every dot and digit has a certain importance. The first two digit shows that filling year. The year format will be based on the Gregorian calendar. The third and fourth digits indicate the filling place. For example, 00 to 09 indicates filling in the EPO in Munich. Valet patent service I here for you to make it simple and more transparent. Browse to our online website and know more about us and our services.