MolWatch is a searchable index of drug-related patent families filed at the USPTO, with structured annotations extracted by gpt-5.4-nano.
Data pipeline
1. Patent XML bulk data downloaded from the EPO DOCDB back-file archive, filtered to biotech IPC classes (A61K, A61P).
2. Patents grouped into families with a canonical representative selected per family.
3. Claims and applicant names enriched from USPTO bulk application XML.
4. Drug annotations (modality, gene target, disease indications) extracted from abstracts and claims using GPT-5.4 nano via the OpenAI Batch API, validated against ICD-10-CM codes and HGNC gene symbols.