MUMBAI, India, March 13 -- Intellectual Property India has published a patent application (202641024385 A) filed by Vellore Institute Of Technology, Vellore, Tamil Nadu, on March 1, for 'an on-device mobile legal information retrieval system and method for performing the same.'

Inventor(s) include Prabhu J; Prakash M; and Theja B.

The application for the patent was published on March 13, under issue no. 11/2026.

According to the abstract released by the Intellectual Property India: "The present invention relates to an on-device mobile legal information retrieval 5 system and method are disclosed. the system includes a local legal corpus repository stored entirely on a mobile computing device, comprising structured legal documents such as statutes, sections, amendments, and case summaries with associated metadata. a preprocessing and indexing module performs legal-text- specific normalization and generates compact TF-IDF vector representations 10 stored in a local embedded database. a query processing module preprocesses user-entered natural-language legal queries on-device and generates corresponding query vectors using locally stored inverse document frequency values. a similarity computation engine computes relevance scores between query vectors and document vectors using cosine similarity without transmitting data to 15 external servers. a hybrid ranking module ranks retrieved legal documents by combining lexical similarity with contextual factors including document recency, legal category relevance, and locally stored user interaction signals. a personalized trending analytics module computes trending legal acts, sections, and topics using locally aggregated interaction statistics. a mobile user interface presents ranked 20 results, category filters, trending legal content, and bookmarked materials in real time. the system operates fully offline after installation, thereby preserving user privacy and enabling efficient legal information access on resource-constrained mobile devices."

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