Taiwan Pre-Grant Publication Coverage
From August 2005 Derwent World Patents Index (DWPI) will additionally cover Taiwan unexamined publications.
DWPI has covered TW examined pre-opposition patents since 1993 and is now extending its coverage 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 and the coverage will be ongoing until it is concurrent with the present examined data.
The following number standards will be used in DWPI:
|
TW Unexamined Patents |
|
| Derwent patent number format | Derwent application number format |
| TW-YYYYNNNNN-A | YYYYTWNNNNNN |
Example:
| Gazette Entry | 200409369 |
| DWPI patent number | TW200409369 |
| Gazette Entry | 091134379 |
| DWPI application number | 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.
We are currently investigating the feasibility of retrospectively converting the kind code of the Old Law TW patents in DWPI from “A” to “B” for greater consistency of searching. Customers will be notified in advance when this change takes place.