DWPI Product Updates
December 7, 2009
Summary of 2009 DWPI Enhancements
Through 2009 there have been a number of significant enhancements made to Derwent World Patents Index® (DWPISM). These have ranged from country coverage and timeliness improvements to the inclusion of Japanese National Classifications (F Terms and FI Codes), a highly effective search tool that makes it easier to retrieve precise, accurate results. Read on
NOVEMBER 4, 2009
Enhancements to the DWPI Patent Assignee Codes
The standard Derwent World Patents Index® (DWPISM) Patent Assignee codes are now being extended to cover all patent assignees with more than 1,000 patents in DWPI. Read on