Patent_application_number,Applicant_name,Year_of_application,Patent_system EP2157170A1,CHEVRON,2010,EPO EP2194119A2,CHEVRON,2010,EPO JP2010505388A,CHEVRON,2010,JPO JP2010527612A,CHEVRON,2010,JPO WO2010075483A2,CHEVRON,2010,WIPO