PATDD
The East German Patent file
Database Producer
German Patent and Trademark Office
Description
PATDD contains bibliographic information and abstracts of patent pub- lications published by the former German Democratic Republic until October 2, 1990, and by the German Patent and Trademark Office from October 3, 1990. Also, the database contains the bibliographic data of patents granted according to the patent law of the GDR published by the German Patent and Trademark Office from October 3, 1990 onwards.