Support : Publications : Chronolog Archives : Issue 4, 2005

Enhanced Coverage of Taiwan in Derwent World Patents Index^®

Derwent World Patents Index® (DWPI) has covered Taiwan (TW) examined pre-opposition patents since 1993. In August, coverage was extended to include unexamined applications. TW pre-grant publication coverage in DWPI starts with the first unexamined applications published by the Intellectual Property Office on May 1, 2003. The coverage will be ongoing until it is concurrent with the present examined data. The following number standards will be used in DWPI for unexamined patents:

• Derwent patent number format: TW-YYYYNNNNN-A (TW200308195)
  
  
• Derwent application number format: YYYYTWNNNNNN (2002TW134379)

Old law TW patent records in DWPI presently have kind code A assigned to them, and this should be noted when searching. There is no overlap with the patent number series for existing TW A records in DWPI. All TW pre-grant publications will have a Derwent week of 200553 or later.

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