📃Top Google Patents for Search Query Interpretation

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Some might argue that sifting through the Google Patents is just a waste of time as they are likely not going to help you in your daily SEO.

But sometimes you will find it useful to equip yourself with useful insights to get wind of the mechanisms behind the search engine’s machine learning processes.

In this post, I will cover a few understandings dealing with the mechanics behind Google’s interpretation of search queries on the SERP.

Identification of Acronym Expansion

a Schema of Identification of Acronym Expansion
Identification of Acronym Expansion

Given that “Acronym” stands for “Knowledge Graph”, once search engines parse a query, they chase a suitable entity to connect with. This results in building the bespoke knowledge graph.

The process loops through continuous research (“Expansion“) for appropriate entities to connect to the users’ query.

Once the algorithms infer a level of confidence that the probability to match a search query is high, they cast the search results along with the Knowledge Graph.

Method, Systems and Media for Interpreting Queries

This process constitutes the kernel NLP and NLU, or systems used as a threshold by search engines to understand and interpret the meaning of natural language from search queries.

💡An N-gram is a continuous sequence of N items from a text. In SEO layman’s terms, it’s something like a “cluster of keywords”.

If the search engine deems an n-gram as an entity, a corresponding search result will be returned. The results will ultimately boil down to the frequency/ popularity of the entity itself.

Complicated enough, right? Let’s make an example

screenshot of google search results for the query "action movies starring tom cruise"
Search results for “action movies starring tom cruise”

Search Query = “Action movie starring Tom Cruise”

N-Grams Detected = “Action”, “Movie”, “Tom”, “Cruise”

Now, a prehistorical search engine would return messy results, such as “Tom&Jerry” or a few suggestions hinting at a crusade somewhere in the world.

Instead, Google would return appropriate media formats to match the searched entity type “Action Film” and the entity “Tom Cruise” sorted by the overall search frequency of both.

This happens because Google is obviously skilled enough to pair up n-grams to generate entities, thereby clustering them in a way that is easier to deliver rightful search results.


Python allows you to easily take advantage of NLP for keyword research purposes. You can learn how to fit n-gram analysis into a comprehensive SEO strategy

Identification of Entities in Search Queries (NER)

NER (Named Entity Recognition) is the process of identifying key entities in a text regardless of stemming from structured or unstructured data (or plain text).

Representation of Search Results retrieved for Kasper Rørsted
Search Results for Kasper Rørsted

In the above example, for the search query “ceo adidas” Google can only answer the question about the entity “Kasper Rørsted” by combining the entity “Adidas” with the connection type “ceo”


You can take the analysis to the next level by benchmarking your site’s entities against competitors. Learn how to run a script for this purpose in this post!

Semantic Enrichment of Search Queries

A screen grab showing an example of Pros & Cons SERP Annotation
Example of Pros & Cons SERP Annotation

Here’s an example that will clear any doubts.

If you typed the search query:

“boris johnson parents”

You would notice that Google reserves 80% of the SERP to the former British prime minister, as the above entity boxes pop up resulting from the additional semantic information deriving from the Knowledge Graph.

Search Results for Boris Johnson
Search Results for Boris Johnson

The main takeaway from this mind-blowing patent is that search results can be generated from the matching of small hints of semantic attributes and not only from fat-head entity connections.

Query Refinements by User Intent

Search Results for Mars
Search Results for Mars


Although the purpose of Google’s patents is not to provide actionable SEO tips, it is interesting to get a grip on what is going on behind Google’s complex arsenal of ever-changing algorithms.

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