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Last seen: 11/18/2022 - 07:03
Joined: 11/14/2022 - 02:14
Y02 Allocation

Hey All,

I am studying the use of YO2 technology classification by the CPC at the USPTO and EPO and am interested in understanding how they allocate a patent as belonging to one of the YO2 classes. The EPO gives the following information 

"The inventories of the Y tags are updated by running search algorithms designed by expert examiners and relying on other CPC symbols, IPC symbols and keywords."

I was just wondering if anyone in this online community had access to more specific information on how this is done? Especially the idea of using keywords.

Thank you!