1. An Atom Transfer Radical Polymerization Process using Novel Soluble Catalyst System. Mandal, B. M., Jewrajka, S. K., Chatterjee, D. P., Chatterjee, U., Das P. and Guha, S. 2002, Indian Patent Application No. 678/cal/02 filed on 5. 12. 2002.
2. Injectible Cyanocrylate-functionalized Polyisobutylenes. Kennedy, J. P., Kwon. Y. and Jewrajka S. K. PCT WO2008127730, 2008.
3. Novel Polyureas and process for making these. Kennedy, J. P. and Jewrajka, S. K. CIP filed (UA # 659).
4. A complete process for the preparation of low fouling Thin film composite reverse osmosis membranes with improved chlorine resistant, Reddy, A.V.R., Saha, N., Jrewrajka, S. K., Ray, P., Trivedi, J.J., Trivedi, G. and Patel, A. PCT/IN2013/000711, 25th November, 2013.
5. Anion Exchange Membrane for electrodialysis applications and process for preparation, Chatterjee, U, Jewrajka, S. K. and Thampy, S. Patent application No. PCT/IN 2014/000501, July, 2013.
6. Post treatment of polyvinylidene fluoride and reactive copolymer blend membranes for water treatment applications via pressure-driven filtration and electrodialysis and method of preparation of same, Application filed (Del. 201611033412).
7. Novel process for the synthesis of polyethene glycol and polycaprolactone containing multiblock copolymers for the sustained release applications, (Del. 201611033416).
8. Process for the preparation of thin film composite reverse osmosis membranes with enhanced antifoilung property and permeate flux for brackish and seawater desalination (DEL 201911023080).
9. Process for the preparation of conetwork coating materials and ultrafiltration membranes with inherent antimicrobial activity and application thereof (patent filed).
10. Reusable nonwoven polyester/polycotton/polypropylene fabric based masks as barrier for SARS-CoV-2 virus and bacterial species (Del 202011038718 ).
11. Ultrafiltration blend membranes and prepared therefore (patent no. 482430).
12. thin film composite membrane with regenerative coating having antifouling/antiscaling property and its method of preparation thereof (202411012613 ).