Infographic: Establishing the Essentiality of Standard Essential Patents Through Claim Chart Mapping

Illustrating the logic behind SEP OmniLytics’ Essentiality Rankings

August 24th, 2021 ‧ 3 min read


Due to the over-declaration issue of standard essential patents (SEPs), determining the essentiality of declared SEPs is an important and often arduous issue to address. Domain expertise and IP knowledge are crucial in determining the essentiality of a SEP to its declared technical standards, which require much time and effort.

As Patentcloud’s SEP OmniLytics continues to find new ways to make SEP work easier, our team has developed the Essentiality Rankings indicator — derived from claim chart mapping —  which is designed to aid in determining a standard essential patent’s essentiality.

Let’s take a look at the Essentiality Rankings and relevant terms.

SEP OmniLytics' Essentiality Rankings explained (Inforgraphic)


SEP OmniLytics’ Essentiality Rankings and its contributing indicators are exclusive features designed to assist our users by sorting out the standard essential patents that need to be further scrutinized and assessing the effort to do so.


As discussed in our over-declaration article, several studies have found that not all SEPs are truly essential, suggesting that only approximately 50% of the patent families examined have at least one patent that is essential or probably essential.

To help alleviate this issue, Patentcloud’s SEP OmniLytics Team has come up with Essentiality Rankings to conduct preliminary discernment of the essentiality of SEPs.

How do Essentiality Rankings work?

SEP OmniLytics’ Essentiality Rankings are derived from the combination of two indicators — TS Relevancy and Claim Scope Support.

  • TS Relevancy
    The TS Relevancy indicator reflects how a self-declared SEP (declared at ETSI) is essential to its declared standards. This is done by mapping a SEP’s independent claims to its corresponding technical specifications (as proposed by the declarant) and can be seen in the Automated Claim Chart.
  • Claim Scope Support
    Claim Scope Support is another indicator that provides proof of essentiality by examining the quality of a patent. Also using an automated claim chart, this indicator maps a patent’s independent claims to its own specification to determine the definiteness of its claims.
Claim chart summary depicting the degree of TS Relevancy and Claim Scope Support in SEP OmniLytics
SEP OmniLytics

How is claim chart mapping conducted?

For both TS Relevancy and Claim Scope Support, an automated claim chart is generated by mapping keywords to find a textual correlation between the declared TS, independent claims, and the patent specification. The mapped keywords include critical keywords and general keywords.

  • Critical keywords indicate terms, abbreviations, and related terms that can be found and defined in 3GPP technical specifications.
  • General keywords are other technical terms that can be found in patents.
An automated claim chart in SEP OmniLytics
An automated claim chart in SEP OmniLytics

How are the SEPs ranked with Essentiality Rankings?

SEP OmniLytics‘ Essentiality Rankings include High, Medium, and Low rankings for the ETSI-declared SEPs in our database. A “High” ranking can only be derived from “High” rankings for both the TS Relevancy and Claim Scope Support indicators. However, a SEP with a “Low” ranking does not necessarily indicate that it is not essential but simply indicates that further examination is required to establish its essentiality.


Navigate SEP OmniLytics’ automated claim charts and essentiality features today!

New call-to-action

Related Posts
The IP world moves fast

Subscribe to receive the latest insights right in your inbox.

By submitting your contact information, you understand and agree to our GDPR, Terms of Use and Privacy Policy