Expanded Claims Coverage and Enhanced HIT Displays of Claims Data in Derwent World Patents Index^®

Derwent World Patents Index (DWPI) now features a tremendous increase in the availability of Claims content, providing the opportunity for more comprehensive prior art searching. In addition, HIT displays in the Claims have been improved.

All Claims for the patent authorities listed below are now available, beginning for most countries with 2015.

AR (ARGENTINA)
BR (BRAZIL)
CA (CANADA)
CH (SWITZERLAND)
EP (EUROPE)
ES (SPAIN)
FR (FRANCE)
GB (GREAT BRITAIN)
ID (INDONESIA)
IN (INDIA)
JP (JAPAN)
MX (MEXICO)
MY (MALAYSIA)
RU (RUSSIA)
TH (THAILAND)
TR (TURKEY)
TW (TAIWAN)
US (UNITED STATES)
VN (VIETNAM)
WO (WIPO)

Previously, DWPI included all Claims only for Chinese (CN) and Korean (KR) patent and utility model publications, with coverage back to 2008. In addition, the main claim data from Germany (DE) is available from 1968 and Singapore (SG) from 2015.

Detailed coverage information can be found at:
https://www.stn-international.com/en/training-center/documentation/dwpi-summary-table-first-level-patent-data

To make it more efficient to review the records in your DWPI answer set, HIT displays of Claims data have been adjusted so that only individual Claims with HIT terms are displayed, as opposed to the entire Claims field.