The CLAIMS Direct data warehouse is updated continuously. On average, 1-3% of the entire database is touched weekly. These 1-3 million updates fall into two categories: new documents (roughly 20%) and updated documents (roughly 80%). New documents are, of course, new publications from issuing authorities, US, EP etc. Updates are generally, but not limited to, CPC changes, family changes (adding family ID), IFI integrated content Snapshots (patent status, standard names and claims summaries), reassignments, legal status, et al. I suggest reading about content updates for a better understanding of load sources and issuing authorities. This blog will describe how to determine what has been updated and further, differentiating new content from updated content at the document level as well as container level.
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