Intellectual Property India Publishes Patent Application for Optical Fuel Level Switch With Inbuilt Emi/Emc And Lightning Compatibility For Airborne Application

MUMBAI, India, Sept. 28 -- Intellectual Property India has published a patent application (202511018549 A) filed by Hindustan Aeronautics Limited on March 03, 2025, for Optical Fuel Level Switch With Inbuilt Emi/Emc And Lightning Compatibility For Airborne Application.

Inventors include Ajay Kumar Verma; Arun Bansal; and Rahul Gupta.

The application for the patent was published on September 25, 2026, under issue no. 39/2026.

Abstract: An Optical Fuel Level Switch (1) designed for aircraft fuel tank able to differentiate between presence or absence of fuel and provides output in form of electrically 'Open' (i.e. applied DC voltage) or 'Close' (i.e. 0 VDC), comprising of Electronic Process Card Assembly (8), Protection Card Assembly (9), O...