Page 1 of 1

Espacenet claim tree algorithm

Posted: Mon Dec 21, 2020 12:34 pm
by VATA
Espacenet offers the option to visualize the claim tree of a patent. Which algorithm does it use to produce the tree? Is it somewhere available for the public or can you please bring me into contact with the person responsible? I want to use the algorithm for my master thesis. thank you

Re: Espacenet claim tree algorithm

Posted: Wed Apr 07, 2021 2:06 pm
by Patent Information Marketing
Dear user,

We would like to apologise for the delayed response. You will find the documentation relating to the construction of claim trees in this file: https://www.epo.org/new-espacenet-claims-tree. Please don't hesitate to recommend any improvements, which the user community would benefit of.

Kind regards,

Andrée

Re: Espacenet claim tree algorithm

Posted: Thu Oct 21, 2021 6:18 pm
by jsfiddler
Dear Andrèe,

First of all - thanks for sharing the basics on how the claim-tree algorithm works.
Still, the algorithm seems not to work if instead of "Anspruch" the claims are worded as "Patentanspruch". For example, consider the following patent document with regard to their german set of claims: EP1538277B1.

Maybe this could be added as additional rule for the parser?

Kind regards,
Jsfiddler

Re: Espacenet claim tree algorithm

Posted: Fri Oct 22, 2021 6:24 am
by Patent Information Marketing
Dear Jsfiddler,

Thank you for your suggestion. I will forward it to the technical team.

Kind regards,

Andrée