In the search mask, the classes can now be searched using keywords and hierarchical levels.
If you click on the IPC or CPC symbol, a navigation and search pop-up opens.

  1.  The navigation shows the hierarchical levels of the various classes. Select your classes and save them to apply the search.      

     2. Under the new tab "Search" you can choose:

  • "Description" to search for specific keywords from the despcription of classes.
  • "Class" to search for several levels of classes.