Free searches in patent databases:

  • DepatisNet:
    • Database and patent server of the German Patent and Trademark Office.
    • Main focus: German patents from 1877
    • Access to original documents
  • Espacenet:
    • Database and patent server of the European Patent Office
    • Main focus: European patents
    • Access to original documents

USPTO:

  • Database and patent server of the US Patent and Trademark Office
  • US patents
  • Access to original documents

Paid-for searches in patent databases:

Acquisition of patents

  • Patents which are not available as full text in the above databases can only be ordered via the PIZ (Patentinformationszentren / Patent Information Centres) or via the Patent Office.
  • Orders are liable to charges. They can be made by phone or in writing (also by e-mail), stating the patent number.

Information on inventions at universities