MUMBAI, India, Jan. 23 -- Intellectual Property India has published a patent application (202511126035 A) filed by Sudhanshu Rastogi, Agra, Uttar Pradesh, on Dec. 12, 2025, for 'sumitra air cooled turbofan jet engine.'

Inventor(s) include Sudhanshu Rastogi.

The application for the patent was published on Jan. 23, under issue no. 04/2026.

According to the abstract released by the Intellectual Property India: "The present invention relates to an air-cooled turbofan jet engine, designated herein as Sumitra. The engine uses ambient air for cooling turbine components, thereby reducing manufacturing complexity while enabling improved thermal efficiency through combustion at elevated temperatures. The design incorporates two parallel drive shafts configured to facilitate energy transfer between the fan and the turbine, resulting in enhanced performance and simplified construction."

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