2026-04-30T04:08:07Z https://datacatalogue.cessda.eu/oai-pmh/v0/oai

8f73ac83daba3862dcfadf2bb57af69fee13498cfebc953973ffaf4d4cedcfac 2025-06-17T03:16:11Z language:enopenaire_data

DDI study level documentation for study 10.7802/2448 Patentdaten der Deutschen Demokratischen Republik (DDR) (1949-1990) Patentdaten der Deutschen Demokratischen Republik (DDR) (1949-1990) Patentdaten der Deutschen Demokratischen Republik (DDR) (1949-1990) 10.7802/244810.7802/244810.7802/244810.7802/2448 Hipp, Ann Hipp, Ann Fritsch, Michael Fritsch, Michael Greve, Maria Greve, Maria Günther, Jutta Günther, Jutta Lange, Marcel Lange, Marcel Liutik, Christian Liutik, Christian Pfeifer, Beate Pfeifer, Beate Shkolnykova, Mariia Shkolnykova, Mariia Wyrwich, Michael Wyrwich, Michael [Bundesministerium für Bildung und Forschung (BMBF)] GESIS Data Archive for the Social SciencesGESIS Datenarchiv für Sozialwissenschaften PatentPatentrechtPatentschutzPatentwesenPatentPatentrechtPatentschutzPatentwesen The database contains all patents granted in the GDR and published by the Office of Inventions and Patents (AfEP, later: German Patent and Trade Mark Office/DPMA) in the period between 1 January 1939 (application before but granted in the GDR) and 29 June 2006 (application in but granted after the GDR). The core database covers the years 1950 to 1990 and contains 24 variables with manually cleaned and processed information on a total of 261,822 unique patents of the GDR. The data was collected and prepared for the purpose of research on innovation activity in the GDR.The database contains all patents granted in the GDR and published by the Office of Inventions and Patents (AfEP, later: German Patent and Trade Mark Office/DPMA) in the period between 1 January 1939 (application before but granted in the GDR) and 29 June 2006 (application in but granted after the GDR). The core database covers the years 1950 to 1990 and contains 24 variables with manually cleaned and processed information on a total of 261,822 unique patents of the GDR. The data was collected and prepared for the purpose of research on innovation activity in the GDR. DeutschlandDeutschland 1950-19891950-1989 VollerhebungVollerhebung AggregationAggregationAggregationAggregation Free access (with registration) - The research data can be downloaded by registered users.Freier Zugang (mit Registrierung) - Die Forschungsdaten können von allen registrierten Nutzerinnen und Nutzern heruntergeladen werden. http://dbkapps.gesis.org/dbkoai/oai.asp oai:dbk.gesis.org:SDN/10.7802_2448 2023-03-11 ddi:codebook:2_5