MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202511113787 A) filed by Chandigarh University, Mohali, Punjab, on Nov. 19, 2025, for 'non-invasive early detection of menstrual onset.'

Inventor(s) include Dr. Navjyot Kaur; Er. Kiranjeet Kaur Sandhu; Dr. Pritpal Singh; Dr. Jaspreet Singh; and Dr. Aleem Ali.

The application for the patent was published on Jan. 9, under issue no. 02/2026.

According to the abstract released by the Intellectual Property India: "The present invention relates to a non-invasive smart wearable system designed for the early detection of menstrual onset using haptic sensor-integrated undergarments and machine learning algorithms. The system comprises an array of thin, flexible pressure and vibration sensors embedded within a soft, breathable undergarment to detect subtle uterine contractions and muscle activity preceding menstruation. Sensor data is transmitted wirelessly via Bluetooth Low Energy (BLE) to a smartphone application, where an AI-based model such as LSTM or CNN-LSTM analyzes the signals in real time to predict the likelihood of menstrual onset. Upon a positive prediction, the user is notified through mobile alerts or gentle haptic feedback. The system ensures data privacy, adaptive learning, and reusability through encrypted communication, user feedback-based model retraining, and washable design. This invention offers a discreet, accurate, and intelligent solution for proactive menstrual management, advancing innovation in feminine health technology."

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