Latest DWPI Updates

DWPI Coverage Tables

The content in DWPI is updated regularly and records are kept of all updates made. In the DWPI coverage table below the latest publication date is provided for each kind of patent included in that update. This does not necessarily include all documents for that publication date: some may have been included in earlier updates, and some may appear in future updates. The number of patent records for each publication kind is the total of new, edited, amended and corrected records included in the update.

DWPI Coverage for Update 201762

Archive 2017

DWPI Update Dates

Dates of data loaded into STN from 1994 to present

Derwent World Patents Index is the most comprehensive database of value-added patent documents in the world. Whether you are interested in patents for their technical content, for business planning and development, or for protecting the innovations within your own organisation, Derwent World Patents Index will give you the most complete picture possible.

Over 1.5 million new inventions from over 3.5 million patents are currently being added to the database each year, covering patents issued by national patent offices (shown in bold), regional patent issuing authorities (EPO), and international patent issuing authorities (WIPO)

Other update news

2015 Revision To DWPI Non-Structural Fragmentation Codes

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