Research
Research Database of the DPMA (German Patent Information System)
Databaseof the DPMA (trademarks)
Online index of the DPMA Patents and Utility Patents
Online index of the EPA
Database of the WIPO (PATENTSCOPE®)
German legislation in the Internet
Patent Information Centers
Database of the European Patent Office (EPA)
United States Patent and Trademark Office
State Intellectual Property Office of the P.R.China
Japan Patent Office