You may file an appeal against decisions of the German Patent and Trade Mark Office in intellectual property proceedings.Marks that serve to distinguish the goods and services of one company from those of other companies can be protected as trademarks at the German Patent and Trademark Office (DPMA).Technical inventions that are new, inventive and industrially applicable can be protected as patents at the German Patent and Trademark Office (DPMA).Patents allow you to protect your technical inventions from unwanted imitation. To assess the patentability of your invention, the process from application to examination request and possible grant of a patent is described here.When the protection of your trade mark expires, you can renew the protection.If you want a rough estimate of whether your invention filed as a patent is new and inventive before you file for examination, you can file a request for search.