Report:SumoBrain/Search Syntax/Searchable Datafields
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The following data fields are available:
Notes: “International Classification” is the field used to search IPC codes.
Citations are broken up into three separate searchable fields: “domestic references”, “foreign references”, and “other references”. These fields are defined based on the country of publication of the parent document.
According to help documentation, US classifications are updated to reflect the current US classification schedule .
SumoBrain has a near-complete list of fields to search, with the only notable omissions being additional classifications such as ECLA or Japanese F-Terms. Fields such as “inventor city” are unusual, but not necessarily useful. One difficulty users may run into is searching citations, or "references," which are divided into “foreign” and “domestic” (as well as “other”). The terms “foreign” and “domestic,” however, take on different meanings based on the origin of the patent that lists the citation. This can lead to missed hits when a patent is included in the domestic references of one patent and the foreign references of another. For example, when looking at an EP patent in SumoBrain, domestic references will include other EP patents, and foreign references will include US patents. The reverse is true when looking at a US patent. Because of this discrepancy, users must be aware that they should search both the "foreign" and "domestic" reference fields when searching for all documents citing a given patent.