1. Indian patent granted on Warm laser shook peening without coating :
Prof. S Kalainathan and S Prabhakaran - An Indian patent “Process for Treating Material Surfaces using Warm Laser Shock Peening without a Coating” granted on 31/01/2024 (Application Number: 201641006200, Patent Number: 505589).
2. Indian Patent granted on graphene – aluminium alloy nanocomposite :
Prof. S Kalainathan, S Prabhakaran, Prashantha Kumar H.G, and Anthony Xavior - An Indian patent “Method for surface modification in graphene-aluminium alloy nanocomposites using low energy laser shock peening” granted on 14/12/2023 (Application Number: 201741034931, Patent Number: 483040).
3. Indian Patent granted on low energy Laser Shock Peening :
Prof. S Kalainathan and S Prabhakaran - An Indian patent “Process for severe laser shock peening using low energy Nd: YAG laser” granted on 14/12/2023 (Application Number: 201641031003, Patent Number: 482914).
4. Indian Patent granted on Automotive Spring steel:
Prof. Kalainathan S and Dr. Prabhakaran S - An Indian patent “Optimised Method for Manufacturing Automotive Spring Steel with Enhanced Fatigue Properties” has been granted on 07/01/2022 (Application Number: 201641006199, Patent Number: 386198).
5. Indian Patent granted on 17-4 PH stainless steel:
Prof. Kalainathan S, Dr. Kartik Dhandapani and Prof. Sathya Swaroop - An Indian patent “Method for improving surface mechanical properties in 17- 4 PH stainless steel using laser peening” has been granted on 12/11/2021 (Application Number: 1364/CHE/2015, Patent Number: 381703).
1. Indian patent filed on enhancing the mechanical properties of AISI 321 Stainless steel:
Prof. Kalainathan. S, Karthik. D and Prof. Sathya Swaroop. N. R - An Indian patent “Method for improving compressive residual stress and hardness in AISI 321 stainless steel using laser peening” filed on 19/03/2015 (Application Number: 1365/CHE/2015).