S. No. Title Inventor Date of filing Patent Application Number Date of Grant Patent Number
1 An Improved Gas Dynamic Cold Spray Device and Method of Coating a Substrate Naveen Chavan, S. Kumar, P. Sudharshan Phani, D. Srinivasa Rao 26/02/2017 201711006749 14/10/2025 572055
2 A Method of Preparing of Anti Tarnishing Organic-Inorganic Hybrid Sol-Gel and Coating The Same K Murugan, R Subasri, G Padmanabham 07/07/2015 2049/DEL/2015 05/05/2021 366131
3 An Improved Solar Selective Multilayer Coating and a Method of Depositing the Same Krishna Valleti , Shrikant V. Joshi 22/05/2012 1567/DEL/2012 30/11/2018 303791
4 An Improved Hybrid Methodology for Producing Composite Multilayered and Graded Coatings by Plasma Spraying Utilizing Powder and Solution Precursor Feedstock G. Siva Kumar , Shrikant V. Joshi 17/10/2011 2965/DEL/2011 22/10/2019 323443
5 An Improved Method for Preparing Nickel Electrodeposited having Predetermined Hardness Gradient Nitin P Wasekar , G. Sundararajan 15/07/2009 1455/DEL/2009 14/07/2017 285178
6 Improved Magnetron Cathode and a Process for Depositing Thin Films on Surfaces using the said Cathode A. Subrahmanyam , Krishna Valleti , S V Joshi , G. Sundararajan 03/01/2008 21/DEL/2008 16/09/2019 320582
7 A Device for Controlling the On & Off Time of the Metal Oxide Semi Conductor Field Effect Transistor (MOSFET), A Device for Spark Coating the Surfaces of Metal Workpiece Incorporating the said Control Device and a Method of Coating Metal Surfaces. K.R.C. Somaraju , Ch. Sambasiva Rao , Alexander Vasilyevich , Ribalko 21/06/2005 1610/DEL/2005 05/08/2014 262189
8 Device for Gas Dynamic Deposition of Powder Materials Alkhimnov A , Pavlovich , K Vladimir , Fedorovich , A Oleg , Anatolievich , L.Victor , Vladimirovic 22/11/2001 944/MAS/2001 25/01/2006 198651
9 A Process for Forming Coatings on Metallic Bodies and an Apparatus for Carrying out the Process L. Rama Krishna , Alexander , Vasilyevich , Rybalko , G. Sundararajan 22/11/2001 945/MAS/2001 06/09/2007 209817
10 An Improved Boronizing Composition K. Balasubramanian , B. Venkata Raman , K. Gopal Krishna , Vipin Jain , K. Sampath , G. Sundararajan 03/04/2001 289/MAS/2001 27/05/2008 220370