Re: [PIUG List] Incomplete IPC documentation for chinese utiliy models and patents

Hi Joerg,
  Welll thy this link regarding chinese patent data base hope it will work
for u

http://search.cnpat.com.cn/Search/EN/

On Mon, Nov 3, 2008 at 9:05 PM, Joerg Ohms <joerg.ohms_at_wissinfo.de> wrote:

> Sorry for the earlier incomplete eMail. I try it again:
>
> We have found some chinese utitly models and patents which database
> entries do not reflect all IPC classes from the original documents:
>
> CN 1702364 (missing IPC: F16L21/0)
> CN 2745800 (missing IPC: B60N3/04)
> CN 2736214 (missing IPC: B65D77/08)
> CN 2743657 (missing IPC: B05B1/22)
>
> All examples were published before 2006; the missing IPC class in each
> case is the secondary class. Databases such as espacenet, Depatisnet or
> INPADOCDB contain reclassified IPC symbols from the Master Classification
> Database as well as the original IPC 1-7 symbols. Theoratically, no IPC
> symbol should get lost. In fact, this seems to be true for most chinese
> documents. However, in some cases the documentation is incomplete.
>
> The CNIPR database seems to contain all IPC classes from the original
> documents (but not the reclassified classes from the MCD). For the above
> mentioned examples no original IPC symbol is missed. In order to get a
> complete search result the CNIPR database should be used as an additional
> source.
>
> Is anybody aware of another database which contains all original IPC
> classes from chinese documents?
>
> Sincerely,
>
> Joerg Ohms
>
> --
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--
Regards,
Ashok.Doppalapudi
Knowledge Scientist
Mobile: +919885266569



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Received on Tue Nov 04 2008 - 07:18:50