New and Enhanced Korean and Chinese Patent Data Now Available in DWPI
The coverage of Asian patent data in Derwent World Patents Index® (DWPI) has been significantly improved with new English content for Korea and China. This new content further strengthens the position of Thomson Reuters as the leading provider of value-added Asian patent information. Read on...

Japanese Utility Models Added to Derwent World Patents Index
Patent data on Derwent World Patents Index (DWPI), File 351, is being extended to include registered Japanese Utility Models, further increasing the coverage of the growing patent activity in the Asia Pacific region. This is the latest addition to the DWPI database, with Chinese Utility Model Registrations added in October 2007. Read on...

New Chinese Patent Data Added to Derwent World Patents Index
New Chinese patent data has been added to Derwent World Patents Index (DWPI) and Derwent World Patents Index First View, providing broader coverage of China’s growing patent activity. Effective November 1, 2007, English-language translations for Chinese Utility Model registrations are now available in DWPI First View, beginning with records published on October 3, 2007. Read on...

New European and US Class Codes Enhance Recall and Precision of DWPI
European Classification (ECLA) Codes and In Computer Only (ICO) codes are available for the first time in Derwent World Patents Index® (DWPI). Similarly, the US Patent Classifications (USPC) have been updated in DWPI to reflect the latest reclassification information Read on...