Ludicrous Patents Office

When a wizard has an idea or an invention, he or she takes her idea to be patented in the ludicrous patents office. Those which are good are sent to the appropriate place, but those which are silly, stupid or "Ludicrous" are kept in filing cabinets in this office and are constantly laughed at by the offcials working there. Why this office in the Department for Magical Games and Sports is unknown.