Numbering system - China

This is your chance to raise your questions or discuss challenges, trends and hot topics around patent information from Asian countries.
Post Reply

nricyberpatent
Posts: 2
Joined: Fri Dec 26, 2014 1:11 pm

Numbering system - China

Post by nricyberpatent » Wed May 18, 2016 4:26 am

I have a question about this page. :arrow:
"Numbering system - China"
http://www.epo.org/searching-for-patent ... ering.html
  • 1. According this page, "SHOUQUAN GONGGAO" is from 1983. I think it is wrong, 1993 is right. Am I correct?
  • 2. Are all dates in this page based on application date?
Does anyone know about? :?:


EPO / Asia Info
Posts: 68
Joined: Thu Dec 04, 2014 8:03 am

Re: Numbering system - China

Post by EPO / Asia Info » Wed May 18, 2016 11:02 am

Dear user,

Thank you for your enquiries and your interest in our webpage on the CN number formats. Concerning your questions, I can give you the following answers:

1. According this page, "SHOUQUAN GONGGAO" is from 1983. I think it is wrong, 1993 is right. Am I correct?

1993 is correct. Thank you for spotting this typo, we will correct it immediately and the corrected date should be online soon!

2. Are all dates in this page based on application date?

The dates are based on the publication dates.

a) The change of kind code from B to C in 1993:

CN-B 1019808 was published on 30 December 1992
CN-C 1019873 was published on 6 January 1993

b) The change of kind code from C to B in April 2010:

CN-C 1398102 was published on 31 March 2010.
CN-B 100596351 was published on 7 April 2010

I hope this answers your questions, if not, please do not hesitate to contact us again.

Your team for Asian patent information services


nricyberpatent
Posts: 2
Joined: Fri Dec 26, 2014 1:11 pm

Re: Numbering system - China

Post by nricyberpatent » Sun Aug 28, 2016 4:21 pm

I am sorry for the late reply.
We highly appreciate your courteous reply.
CN-C 1398102 was published on 31 March 2010.
As far as I have confirmed, CN-C1398102 was not published. But there is CN-B 1398102 which was published on 7 April 2010.
https://worldwide.espacenet.com/publica ... &KC=B&ND=4


EPO / Asia Info
Posts: 68
Joined: Thu Dec 04, 2014 8:03 am

Re: Numbering system - China

Post by EPO / Asia Info » Tue Sep 06, 2016 8:56 am

Dear user,

Thank you for spotting this. Apparently, I used the wrong number as an example, this publication was indeed made on 4 April 2010, not 31 March 2010, so SIPO already used the new kind code “B”. However, when you look at granted publications issued before this date (31 March 2010 and earlier), you will see that they still have the old kind code “C”, for example CN-C 100596287 or CN-C 100596324. The transition to the new kind code took place at this time. I hope this makes it clear. Should you have any further questions, please do not hesitate to contact us again.

Best regards,

The EPO’s Asian patent information services


Post Reply