Local search: patents
Local search patents describe how Google could rank businesses for place-based searches: scoring a business’s prominence from references and reviews across the web, adjusting for distance, detecting fake map listings and matching business details to addresses. Seven Google patents are listed. Google’s own summary of local ranking is relevance, distance and prominence.
What does this theme cover?
Google says local results are “mainly based on relevance, distance, and popularity” and explains that prominence is “based on info like how many websites link to your business and how many reviews you have”.[1] Officially documented The patents below describe more specific mechanisms. They sit behind the practical advice in local SEO, Google Business Profile and NAP and citations, and AEO.wiki’s local AEO.
We list no research papers here: we did not find peer-reviewed papers we could verify as describing Google’s local ranking specifically.
Which patents describe local search ranking?
Scoring local search results based on location prominence
What it describes: Scoring local results for a geographic area using prominence rather than distance alone. The description lists factors including a score for the business’s authoritative document (its official page), the total number of documents referring to the business, the highest score among those documents, the number of documents with reviews of the business, and the number of information documents that mention it.
Why it matters for SEO: This is the closest patent match to what Google calls prominence. Citations, mentions, reviews across the web and a strong official site all feature. See NAP and citations. Practitioner practice
Distance based search ranking demotion
What it describes: Demoting a local result when a proximity measure between the user’s device and the result’s location shows it is far away compared with other local results.
Why it matters for SEO: Distance can outweigh relevance for some searches. You cannot move, but accurate location data and service-area settings in your Business Profile matter.
Local business ranking using mapping information
What it describes: Ranking local businesses using signals that indicate actions related to business listings, then ordering listings in response to a search based on that ranking.
Why it matters for SEO: Engagement with listings (the patent speaks of “actions related to” them) may inform local ranking. A complete, accurate profile earns genuine engagement; fake engagement breaks Google’s policies.[2]
Ranking location search results based on multiple distance measures
What it describes: A location relevance score based on three distances to a result’s address: from a polygon approximating the region’s boundary, from the combined area of the region’s ZIP codes, and from a central location.
Why it matters for SEO: Being “in” a city can be judged in several ways. Use a real, consistent address and describe your service areas honestly.
Map spam detection
What it describes: Detecting mapped business listings that do not match a real location, using factors such as unusually high density of a business category in an area, different listings sharing the same identifying data, and neighbourhood characteristics.
Why it matters for SEO: Map spam tactics (fake addresses, duplicate listings) create exactly these patterns. Keep one accurate listing per real location; see Google’s representation guidelines.[3]
Local item extraction
What it describes: Extracting business information that appears near an address in a web page and assigning a confidence score that the business information belongs to that address.
Why it matters for SEO: This is how a citation might be matched to your business. Consistent name, address and phone formatting near each other on your pages and citations supports the match. Practitioner practice
Universal scores for location search queries
What it describes: Ranking geographic feature documents for location searches using address support scores, including standalone and template support scores.
Why it matters for SEO: Address data that is supported across many documents is treated as more reliable. Consistent NAP across the web is the practical takeaway.
What should you do with this?
- Keep one accurate Business Profile per real location, with correct categories.
- Build consistent citations and mentions, and a strong official location page.
- Earn genuine reviews; never buy them. Fake reviews are also banned by the US FTC’s 2024 rule.[4]
Frequently asked questions
What are Google's local ranking factors?
Google says local results are mainly based on relevance, distance and prominence (which it also calls popularity), and that links and reviews inform prominence.
Which patent covers local prominence?
US 8,046,371 B2, 'Scoring local search results based on location prominence', by Brian O'Clair, Daniel Egnor and Lawrence E. Greenfield, granted October 25, 2011.
Does Google detect fake listings?
Google has policies against misrepresentation and fake engagement, and US 8,694,489 B1 describes one method of detecting map spam. The patent does not show which methods Google uses.
See also
References
Pages accessed September 29, 2026 unless a date is given. See all sources and our editorial policy.
- ^ "Tips to improve your local ranking on Google". Google Business Profile Help.
- ^ "Maps user-generated content policy: fake engagement". Google Maps Help.
- ^ "Guidelines for representing your business on Google". Google Business Profile Help.
- ^ "Federal Trade Commission announces final rule banning fake reviews and testimonials". U.S. Federal Trade Commission. Published August 14, 2024.