Data Coverage
Total Documents331.2M331,188,728 Records
Patent Records141,300,61018 Jurisdictions
Non-Patent Literature189,888,11815 Document Types
Indexed Sources1,506,794Journals + Publishers
Document TypeCount
Book2,721,755
Book Chapter22,860,142
Dataset3,435,765
Dissertation1,886,393
Journal201,457
Journal Article134,399,034
Other1,846,608
Peer Review1,097,810
Posted Content5,675,232
Proceedings84,396
Proceedings Article10,300,868
Reference Entry879,455
Report1,419,313
Standard427,813
Supplementary Information2,652,077