Technology and Process for 3D Printing Using Swarf Particles — Inventors: Malkeet Singh, Harpreet Singh, Christopher Charles Berndt, Prabir Sarkar; US Patent Application No.: 16/540,736; Year: 2019. 

1. A Manually Operated Aid for Impaired People to Ingress and Egress Train and Method Thereof — Inventors: Archana Badodekar, Prabir Sarkar, Amaresh Chakrabarti, Prasad G. Kamble; Patent Application No.: 453/CHE/2005; Year: 2005; Indian Patent Grant No.: 227939.

2. Rupturable Disposable Syringe — Inventors: B. Gurumoorthy, Neeraj Pal, Prabir Sarkar; Patent Application No.: Not specified; Year: 2000; Indian Patent Grant No.: 198228.

3. A Flexible Continuous Minimum Quantity Lubrication (FCMQL) System — Inventors: Gyanendra Singh Goindi, Dr. Anshu Dhar Jayal, Dr. Prabir Sarkar; Patent Application No.: 3971/DEL/2015; Year: 2015; Indian Patent Grant No.: 376967.

4. Semi-Automatic Food Processing Device for Preparing Sweets and Savories — Inventors: Dr. Prabir Sarkar, Dinesh Chauhan, Duddela Sai Harish, Gaurav Gupta, Dhruv Kumar Bansal; Patent Application No.: 201611000957; Year: 2016; Indian Patent Grant No.: 384307.

5. A Method for Determining a Single Discounting Rate for the Processes Involving Emissions — Inventors: Amit R. Patel, Prabir Sarkar, Himanshu Tyagi, Harpreet Singh; Patent Application No.: 201811044462; Year: 2018.

6. Stapler Device with Multi-Tier Force Multiplication Mechanism for Binding Hard Materials — Inventors: Dr. Prabir Sarkar, Bishal Ghosh, Mahak Sarin, Alluvala Mamata, Dev Prabhaker Singh Tomar; Patent Application No.: 3961/DEL/2015; Year: 2015.

7. Weighing System — Inventors: Dr. Prabir Sarkar, Banoth Praveen Kumar, Honey Singla, Imroj Qamar, Jaskaran Singh Virdi, Kumar Harshad; Patent Application No.: 3354/DEL/2013; Year: 2013.

8. A Programmable Electro-Mechanical Combination Locking System — Inventor: Dr. Prabir Sarkar; Patent Application No.: 201611004726; Year: 2016.

9. A Rectangular Slot-Cutting Machine for Slots of Variable Sizes — Inventors: Dr. Prabir Sarkar, Nishant Bagaria, Ekjot Singh, Nabajit Hazowary, Gaurav Kumar; Patent Application No.: 201611015347; Year: 2016.

10. System and Method for Tracking Details of Energy Associated with an Energy Generation Process — Inventors: Amit Rajnikant Patel, Dr. Prabir Sarkar, Dr. Himanshu Tyagi, Prof. Harpreet Singh; Patent Application No.: 202011011721; Year: 2020.

11. Stubble Removing and Conveying Machine — Inventors: Dr. Prabir Sarkar, Prof. Harpreet Singh, Harmanpreet Singh, Fateh Singh, Mohd. Sahil, Kharak Singh; Patent Application No.: 201911041636; Year: 2019.

12. Safety Mechanism for a Device and a Method Thereof — Inventors: Ashish Sahu, Prabir Sarkar; Patent Application No.: 202111041794; Year: 2021.

13. A Measuring Device for Measuring the Surface Contour of an Object — Inventors: Ashish Sahu, Prabir Sarkar; Patent Application No.: 02111051100; Year: 2021.

14. Automatic Mold Forming Device — Inventor: Dr. Prabir Sarkar; Patent Application No.: 202111027616; Year: 2021.

Bone Alignment Measuring Device for Knee Surgery — Inventors/Designers: Dr. Prabir Sarkar, Dr. Devendra Kumar Chauhan, Anshu Kaushal, Jaspal Singh, Kaustav Das, Milind Aggarwal; Design Application No.: 292918; Year: 2019; Status: Design Accepted and Published; Journal No.: 42/2019. 

1. Dual-Layer Biodegradable Grain Packaging Sack with Freshness Indicator and Moisture-Control Insert — Inventors: Sandeep Kumar, Prabir Sarkar; Patent Application No.: 202611036494; Year: 2026; Status: Filed.

2. Biodegradable Packaging System for Perishable Fruits with Antifungal Protection — Inventors: Sandeep Kumar, Prabir Sarkar; Patent Application No.: 202511106427; Year: 2025; Status: Published.

3. A Smart Footwear for Detecting Fall of a Wearer Using IoT and Machine Learning Techniques — Inventors: Loga Vignesh P., Dr. Prabir Sarkar, Dr. Madhusudan Pal; Patent Application No.: 202411082933; Year: 2024.

4. A Semi-Automatic Seed Sowing Apparatus — Inventors: Dr. Prabir Sarkar, Mandeep Singh; Patent Application No.: 202411027955 A; Year: 2024; Status: Published.

5. A Technology and Process for 3D Printing Using SWARF Particles — Inventors: Malkeet Singh, Harpreet Singh, Christopher Charles Berndt, Prabir Sarkar; Patent Application No.: 201923001267; Year: 2019; Application Type: Patent of Addition; Applicants: Indian Institute of Technology Ropar and Swinburne University of Technology; LRN No.: P3001-IN.

6. System and Method for Controlling Electronic Locks — Inventors: Dr. Prabir Sarkar, Akash Mathwani, Arpit Sharma, Jitenda Kumar, Harshjeet Singh Aulakh; Patent Application No.: 201711003769; Year: 2017.

7. A Method of Fabricating Particleboard from Cellulosic Plant Material — Inventors: Dr. Navin Kumar, Dr. Prabir Sarkar; Patent Application No.: 201611029993; Year: 2016.