May 18, 2020

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Patent Kind Code Changes for Korean Patents

Derwent is changing the patent kind code of Korean patents from KR B to KR B1 to be consistent with INPADOC. There are around 250,000 patents to update, and this change is expected to take a further 3-4 months to complete. This updating of DWPI records may affect your SDI results when you use UP or UPP as the update code.