Classification list
Posted: Wed Aug 16, 2017 12:02 am
Dear Espacenet Team,
I´m working on IPC symbols given to patent applications. I observed the IPC symbols list on “Classification - International” are not exact equal to what one can find on EPO publications (EPO publications associated to an application).
1) Where can I find a definition for the “Classification - International” field?
Is this a comprehensive list of all IPC symbols given to all publications of ALL members of a patent application's DocDB family?
2) Why one can found in the same list IPC symbols of different levels (subgroups and its group and its subclass)?
For example:
For EP20140184480 (application number) the "Classification - International" field has the following IPC symbol list: C22C 14/00; C22C 19/00; C22F 1/00; C22F 1/10 and C22F.
On the EPO Publications only C22C14/00 and C22C19/00 are found. Looking on publications of other family members, other IPCs symbols could be found. But not all of them! I didn’t find the subclass C22F! And other different IPC symbols were found too! For example, C22F 1/18 on the US and Russia publications!
Beside that, why the C22F subclass and the C22F 1/00 group are given in the same list where one find the C22F 1/10 subgroup ?
How is the "Classification - International" IPC symbols list constructed?
Thanks for your help!
Best regards,
Pedro
I´m working on IPC symbols given to patent applications. I observed the IPC symbols list on “Classification - International” are not exact equal to what one can find on EPO publications (EPO publications associated to an application).
1) Where can I find a definition for the “Classification - International” field?
Is this a comprehensive list of all IPC symbols given to all publications of ALL members of a patent application's DocDB family?
2) Why one can found in the same list IPC symbols of different levels (subgroups and its group and its subclass)?
For example:
For EP20140184480 (application number) the "Classification - International" field has the following IPC symbol list: C22C 14/00; C22C 19/00; C22F 1/00; C22F 1/10 and C22F.
On the EPO Publications only C22C14/00 and C22C19/00 are found. Looking on publications of other family members, other IPCs symbols could be found. But not all of them! I didn’t find the subclass C22F! And other different IPC symbols were found too! For example, C22F 1/18 on the US and Russia publications!
Beside that, why the C22F subclass and the C22F 1/00 group are given in the same list where one find the C22F 1/10 subgroup ?
How is the "Classification - International" IPC symbols list constructed?
Thanks for your help!
Best regards,
Pedro