Hipp, Ann; Fritsch, Michael; Greve, Maria; Günther, Jutta - In: Jahrbücher für Nationalökonomie und Statistik 244 (2024) 1/2, pp. 149-158
Republic (GDR) (1949-1990), which is freely available at GESIS https://doi.org/10.7802/2448. The database contains all patents … granted in the GDR and published by the Office of Inventions and Patents (later: German Patent and Trade Mark Office … a total of 261,822 unique patents of the GDR. …