Report:PatBase/Data Coverage/Patent Coverage/Full Text Coverage/United States (US)
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United States
PatBase offers a comprehensive collection of full text US published applications, beginning on March 15, 2001.
Full text coverage of US granted patents is included from January 05, 1971 to date. It includes utility and design patents, plant patents, and re-issues. It also includes defensive publications and statutory invention registration (SIR) documents.
PatBase provides a unique interface feature for viewing full-text US patent claims. A “smart claims” option is available which will organize US claims into a claim map, showing the relationships between independent and dependent claims. More is said about this feature in Viewing Full Text.
Editor's Note:Unlike some competitors, I.E. MicroPatent or Google Patent Search, PatBase contains no scanned pre-1971 OCR records for US art. It contains only bibliographic records (no searchable text, titles and abstracts largely unavailable) for US patents granted before 1971, with links to the complete image of the document via the USPTO website.
The lack of searchable electronic text for pre-1971 US references is a disadvantage compared to other systems that do offer the OCR text: although keyword searching in OCR text is by no means reliable, it still offers a higher probability of finding references of interest opposed to a keyword search of bibliographic records only. The ability to search in these older records is of special importance for mechanical searches, because mechanical concepts were being patented long before the advent of more recent technologies like computer science. (Bibliographic records for these documents do include US classifications, so classification search might still retrieve them.)
