Patent_application_number,Applicant_name,Year_of_application,Patent_system
WO2002002459A1,BAYER,2002,WIPO
WO2002002469A1,BAYER,2002,WIPO
WO2002002470A1,BAYER,2002,WIPO
WO2002002508A1,BAYER,2002,WIPO