Latest Manual Code revision goes live on Derwent World Patents Index (DWPI)

The Derwent World Patents Index^® (DWPI^SM) manual coding system annual revision for 2013 is now complete and is being used by the editorial teams to code records appearing in the database from DWPI Update 201301 onward. The editorial team consistently applies DWPI manual codes to new inventions across all 47 authorities (soon to be increasing) covered in the database. Since the coding highlights the novel technical aspects of the invention as well as the application(s), it is extremely useful to improve the precision and recall of searches and the subsequent analysis of result sets.

As with previous revisions, the coding has been updated to:

• Reflect changes in technology
• Take into account suggestions for improvements
• Enhance code descriptions and scope notes to improve the consistency of code application by the editorial teams and understanding of what each code covers.

In total, 235 changes have been made to the manual coding system and scope notes. Among them are 101 new codes. These changes include the following:

• B04-Q and C04-Q codes for Drug Conjugates
• Several B14 and C14 codes for combating resistant micro-organisms, weeds and pests
• X12-H08 for electrical transmission 'Smart' grids
• Subdivisions of W03-A08E7 for enhanced treatment of head-mounted display technology
• Subdivisions of W04-E30 for audio and video recording and playback devices

The Coding Manuals and reference guides on the Thomson Reuters homepage have all been updated to include the changes. These resources are available through the following links:

•  DWPI Manual Code online look-up tool
• Updated CPI Manual Code user guides 2.89 MB, 514 pages
• Updated EPI Manual Code user guides 1.46 MB, 350 pages
• DWPI Classification Manual 492 KB, 27 pages

Additionally, users can provide suggestions for future manual code revisions by sending them to scientific.mcrdwpi@thomsonreuters.com.

JANUARY 2013

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