1)Prof. (Dr.) Pradip Kumar Sadhu, Palash Pal, Dr. Nitai Pal, and Arijit Baral, “A High Frequency ModifiedHalf Bridge Resonant Inverter With AC Input Source” Patent no. 341969, ApplicationDate: 17/12/2014, Date of Grant:20/07/2020, Patent Office, Kolkata, Government of India.
2)Applied patent (Application No : 201731040675, Dated 14 / 11 / 2017) for “Solar Induction Heating System using High Frequency Modified Half Bridge Series Resonant Inverter under CSI Mode” in the name of inventors . Soham Dutta, Tamalika Panda, Pradip Kumar Sadhu, Paromita Sadhu, Palash Pal and Chayan Chakraborty, at Patent Office, Kolkata, Government of India.