I am inquiring about some Chinese patents. I found in the download file of the patent search results that some application numbers are the same as those in China, but some are different. I cannot find the application number on the Chinese patent search website. For example:
Application Number: 10201600876836 (China: CN201610876836)
I want to know why this is happening? What are the composition rules of application numbers and how can they be converted into Chinese application numbers?
There are mostly 3 different formats in PATENTSCOPE
• After October 2013
o yyyytnnnnnnn.d This is the CN office original format, most of the applications are in this format.
o Ttyyyy00nnnnnnn This is the WIPO ST.13 number format, few applications are in this format.
For example, 201610876836.7 is equivalent to 102016000876836 in ST.13.