Walmart Apollo AI Symptom Checker Patent, Granted 14th Apr

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Interactive conversational symptom checker

Grant US12603177B2 Kind: B2 Apr 14, 2026

Assignee

Walmart Apollo, LLC

Inventors

Phani Ram Sayapaneni, Navin Naidu, Venkata Naga Vamsi Krishna Nandanavanam, Shankara Bhargava

Abstract

A system including one or more processors and one or more non-transitory computer-readable media storing computing instructions that, when executed on the one or more processors, cause the one or more processors to perform: receiving text from a user; generating, from an undirected graph, a subgraph mapping the one or more symptoms to connected diseases; calculating a respective posterior probability for each of the connected diseases using the subgraph and evidence to formulate a hypothesis diagnosis; iteratively: determining one or more questions to send the user based on a set of top symptoms for the hypothesis diagnosis; sending the one or more questions to the user; receiving one or more responses from the user; and updating the hypothesis diagnosis; and sending a recommendation to the user to schedule an appointment with a provider for the hypothesis diagnosis. Other embodiments are disclosed.

CPC Classifications

G16H 50/20 G16H 50/00 G16H 40/20 G06F 40/20 G06F 40/279

Filing Date

2023-01-24

Application No.

18100645

Claims

14

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