Patents

Issued Patents​

Links on the patent numbers will take to the complete specifications​

  1. Method of preparing drinking water with pesticide content 0.1 PPM and below and drinking water prepared by the said method, T. Pradeep and A. Sreekumaran Nair, Application no. 51/CHE/2004, dated January 22, 2004, issued as patent no. 200767, dated June 2, 2006.
  2. Polyurethane foam coated with silver nanoparticles, Prashant Jain and T. Pradeep, application no 891/CHE/2004, issued as patent no. 219111, dated April 24, 2008.
  3. A method of manufacturing of a device to monitor the flow of liquids and a device manufactured by the said method, C. Subramaniam and T. Pradeep, application no. 1113/CHE/2005, dated August 11, 2005, issued as patent no. 230725, dated 27/02/2009.
  4. Manufacture of single walled carbon nanotubes providing visible emission for imaging of nanostructure, C. Subramaniam and T. Pradeep, application no. 421/CHE/2006, dated 09.03.2006, issued as patent No. 235278, dated June 30, 2009.
  5. A method to transform metallic single walled carbon nanotubes into semiconducting nanotubes, C. Subramaniam and T. Pradeep, application no. 943/CHE/2007, dated 03.05.2007, issued as patent no. 246826, dated March 28, 2011.
  6. AMRIT drinking water purifier, design patent application no. 257312, dated October 09, 2013, issued on December 16, 2014.
  7. On-line water purifier for hand pumps, design patent application no. 271059, dated April 6, 2015, issued on July 12, 2016.
  8. A method to produce supported noble metal nanoparticles in commercial quantities for drinking water purification, A. Sreekumaran Nair and T. Pradeep, application no. 1879/CHE/2007, dated December 10, 2007, issued as patent no. 277112.
  9. Gravity-fed axial flow filter block for domestic water purifiers and the method of making the same, T. Pradeep, M. Udhaya Sankar, Anshup and Amrita Chaudhary, application no. 2892/CHE/2010, dated September 30, 2010, issued as patent no. 282257, dated March 31, 2017.
  10. Anti-gravity water filter cartridge, design patent application no. 260460, dated February 19, 2014, issued on October 18, 2019.
  11. Water purifier, design patent application no. 254443, dated 11, 2013, issued on April 18, 2014.
  12. Water purification cartridge attached to container, design patent no. TEMP/D-1/5729/2016-KOL, dated October 18, 2016, issued as patent no. 287785, dated June 21, 2019.
  13. Multilayer organic-templated-boehmite-nanoarchitecture for fluoride removal, T. Pradeep, A. Leelavathi, Amrita Chaudhary, M. Udhaya Sankar and Anshup, application no. 4062/CHE/2011, dated November 24, 2011, issued as patent no. 286929, dated August 31, 2017.
  14. One container gravity fed storage water purifier, Indian patent application, T. Pradeep, Amrita Chaudhary, M. Udhaya Sankar and Anshup, application no. 1522/CHE/2011, issued as patent no. 293515, dated February 28, 2018.
  15. A method of preparing self-assembled manganese-zinc oxide nanosheet granular composite for pathogens and heavy metals free water, Amrita Chaudhary, T. Saraladevi, Shihabudheen M. Maliyekkal, M. Udhaya Sankar, Anshup and T. Pradeep, application no. 2433/CHE/2010, dated August 23, 2010, issued as patent no. 300346, dated August 28, 2018.
  16. Removal of pesticides from water using graphenic materials, T. Pradeep, Shihabudeen Maliyekkal and T. S. Sreeprasad, application no. 3587/CHE/2011, dated October 19, 2011, issued as patent no. 302262, dated October 17, 2018.
  17. Method of extraction of silver by glucose, T. Pradeep, Ananya Baksi, Mounika Gandi, Swathi Chaudhari, Soumabha Bag, application no. 6730/CHE/2014, dated December 30, 2014; full specification filed on December 28, 2015, issued as patent no. 302630, dated October 30, 2018.
  18. A sustained silver release composition for water purification, T. Pradeep, Anshup, Amrita Chaudhary, Udhaya Sankar, and S. Gayathri, application no. 947/CHE/2011, dated March 25, 2011, issued as patent no. 286423, dated August 18, 2017.
  19. Domestic water purification unit, design patent application no. 288810, issued on October 16, 2017.
  20. Reduced graphene oxide-based composites for the purification of water, T. Pradeep, M. M. Shihabudheen and T.S. Sreeprasad, application no. 2563/CHE/2010, dated September 3, 2010, issued as 291052, dated December 26, 2017.
  21. A method for preparing of monolayer protected silver clusters as antibacterial agents, T. Pradeep, Indranath Chakraborty, Udayabhaskararao Thumu and G. K. Deepesh, application no. 485/CHE/2013, dated February 4, 2013, issued as patent no. 303077, dated November 13, 2018.
  22. Facile synthesis of highly anisotropic gold nanoflowers: a new class of infrared absorbing nanomaterials with applications in labeling and printing, P. R. Sajanlal and T. Pradeep, application no. 2262/CHE/2008, dated September 17, 2008, issued as patent no. 304127, dated December 6, 2018.
  23. Dechlorination of lindane and its removal from water using graphene nanocomposites, T. Pradeep, Soujit Sengupta, Indranath Chakraborty and Shihabudheen M. Maliyekkal, application no. 5988/CHE/2013, dated December 20, 2013, issued as patent no. 304213, dated December 7, 2018.
  24. Water filled organic templated metal oxide/hydroxide/oxyhydroxide particle network for water purification and a device thereof, T. Pradeep, M. Udhaya Sankar, Amrita Chaudhary, A. Anil Kumar, Anshup, application no. 525/CHE/2013, issued as patent no. 304463, dated December 14, 2018.
  25. Application of nanoscale ZnO in peanut crop, T. Pradeep, T. N. V. K. V. Prasad, P. Sudhakar, T. S. Sreeprasad and P. R. Sajanlal, application no. 3586/CHE/2011 , dated October 19, 2011, issued as patent no. 304588, dated December 18, 2018.
  26. Removal of fluoride, alkalinity, heavy metals and suspended solids simultaneously adsorbent synthesis, adsorbent composition and a device for affordable drinking water, Shihabudheen M. Maliyekkal, Anshup and T. Pradeep, application no. 2082/CHE/2009/, dated July 2009, issued as patent no. 313917, dated June 10, 2019.
  27. Composition for sustained release of carbonate and a water purification device based on the same with enhanced biocidal activity, T. Pradeep, J. R. Swathy, N. Pugazhendran, application no. 7026/CHE/2015, dated December 29, 2015, issued as patent no. 314266, dated June 17, 2019.
  28. A granulation composition for powder ingredients, T. Pradeep, A. Anil Kumar, M. Udhaya Sankar, Amrita Chaudhary, Anshup, application no. 486/CHE/2013, dated February 4, 2013, issued as patent no. 322218, dated October 1, 2019.
  29. Method of making nanometer thin sheets of metals in air, T. Pradeep, Depanjan Sarkar and Anirban Som, application no. 201741036233, dated October 12, 2017, issued as patent no. 332623, dated February 2, 2020.
  30. A composition for enhanced biocidal activity and a water purification device based on the same, Thalappil Pradeep; Mohan Udhaya Sankar; Amrita Chaudhary; Anshup; Aigal Sahaja, application no. 2867/CHE/2013, dated June 28, 2013, issued as patent no. 332218, dated February 17, 2020.
  31. Cellulose derived graphenic fibers for capacitive desalination of brackish water and preparation method of the electrode thereof, Thalappil Pradeep; Nalenthiran Pugazhenthiran; Soujit Sen Gupta; Anupama Prabath; Jakka Ravindran Swathy, application no. 3951/CHE/2015, dated July 31, 2015, issued as patent no. 335882, dated April 23, 2020.
  32. A method for preparing cellulose microstructures-templated nanocomposites with enhanced arsenic removal capacity, Thalappil Pradeep; Sritama Mukherjee, application no. 201641044817, dated December 26, 2016, issued as patent no. 337979, dated June 4, 2020.
  33. Method for preparing crossed bilayer assembly of 1D nanowires using an atomically precise clusters, Pradeep, Anirban Som, Indranath Chakraborty and Tuhina Adit Maark, application no. 6993/CHE/2015, dated December 28, 2015, issued as patent no. 340305, dated July 3, 2020.
  34. An enhanced carbon dioxide sorbent nanofiber membrane and a device thereof , T. Pradeep, Anangha Yatheendran, Ramesh Kumar and Arun Karthik, application no. 201841031076, dated August 20, 2018, issued as patent no. 323314, dated August 4, 2020.
  35. Cellulose nanocrystal templated iron oxyhydroxide based adsorbent for arsenic removal from water and a device thereof, T. Pradeep, Avijit Baidya, Bibhuti Bhusan Rath and A. Anil Kumar, application no. 201641027660, dated August 12, 2016, issued as patent no. 343818, dated August 10, 2020.
  36. An integrated CDI electrode, T . Pradeep , Md Rabiul Islam, Soujit Sengupta, Srikrishnarka Pillalamarri, application no. 201741047400, dated December 30 , 2017. issued as patent no. 345270, dated August 27, 2020.
  37. Method of making alloys of precise composition in solution by inter-cluster reactions in solution, T. Pradeep, K. R. Krishnadas, Atanu Ghosh, Ananya Baksi, Indranath Chakrabarti and Ganapathy Natarajan, application no. 6907/CHE/2015, dated December 14, 2015, issued as patent no. 345596, dated August 29, 2020.
  38. Organic-templated-boehmite-nanoarchitecture: An adsorbent composition to remove arsenic and fluoride from drinking water, T. Pradeep, Shihabudheen M. Maliyekkal, Anshup, M. Udhaya Sankar and Amrita Chaudhary, application no. 1529/CHE/2010, dated June 3, 2010, issued as patent no. 346000, dated September 3, 2020.
  39. Molecular ionization from carbon nanotube paper, T. Pradeep, Depanjan Sarkar, Rahul Narayanan, R. G. Cooks, application no. 6137/CHE/2013, dated December 30, 2013, issued as patent no. 348929, dated October 9, 2020.
  40. A method for removing inorganic mercury from drinking water, T. Pradeep, Kinattukara Parambil Lisha, Anshup, application no. 169/CHE/2009, dated January 27, 2009, issued as patent no. 349961, dated October 23, 2020.
  41. Multilayer multifunctional nasal filter, Thalappil Pradeep; Arun Karthick, application no. 201741007433, dated March 02, 2017, issued as patent no. 351038, dated November 6, 2020. PDF File
  42. Chitosan reinforced mixed oxide nanocomposite for fluoride removal from water and a device thereof, Thalappil Pradeep; Anil Kumar Avula; Bibhuti Bhusan Rath, application no. 201641045048, dated December 30, 2016, issued as patent no. 354374, dated December 23, 2020.
  43. Method of making nanoparticles of precise isotopic composition by rapid isotopic exchange, T. Pradeep, Papri Chakraborti and Esma Khatun, application no. 201741037349, dated October 23, 2017, complete specification filed on October 23, 2018, issued as patent no. 355248, dated January 4, 2021.
  44. Method for creating nanopores in MoS2 nanosheets by chemical drilling for disinfection of water under visible light, T. Pradeep, Depanjan Sarkar, Anirban Som, Biswajit Mondal and Jakka Ravindran Swathy, application no. 201741037148, dated October 20, 2017, issued as patent no. 356015, dated January 18, 2021.
  45. Aqueous composition for durable and extremely efficient water repelling superhydrophobic materials at ambient condition thereof, T. Pradeep, Avijit Baidya, Azhar Ganayee and Jakka Ravindran Swathy, application no. 201741036772, dated October 17, 2017, complete specification filed on October 16, 2018, issued as patent no. 356023, dated January 18, 2021.
  46. A process for low temperature, low pressure synthesis of gas hydrates, T. Pradeep, Jyotirmoy Ghosh, Rabin Rajan J. Methikkalam, Radha Gobinda Bhuin, Gopi Ragupathy, Nilesh Choudhary and Rajnish Kumar, application no. 201841049836, dated December 29, 2018, issued as patent no. 356814, dated January 27, 2021.
  47. Removal of lead from waste water using nanoscale MoS2, T. Pradeep, Biswajit Mondal, Ananthu Mahendranath, Anirban Som, Sandeep Bose, Tripti Ahuja, Avula Anil Kumar and Jyotirmoy Ghosh, application no. 201741044447, dated December 11, 2017, issued as patent no. 365164, dated April 22, 2021.
  48. Ambient microdroplet annealing method for converting polydispersed nanoparticles to their monodispersed analogues, T. Pradeep, Angshuman Ray Chowdhuri, B. K. Spoorthi, Biswajit Mondol, Paulami Bose and Sandeep Bose application no. 202041056735, dated December 28, 2020, issued as patent no. 377934, dated September 27, 2021.
  49. A method to make unprotected naked clusters of metals of precise composition in air without mass selection, T. Pradeep, Ananya Baksi, Atanu Ghosh, Md Bodiuzzaman, Papri Chakraborty, Depanjan Sarkar, Pallab Basuri and Madhuri Jash, application no. 201641035574, dated October 18, 2016, issued as patent no. 369127, dated June 11, 2021
  1. Extraction of malatheon and chlorpiryhphos from drinking water by nanoparticles adsorbent composition, a device and a method for decontaminating water containing pesticides, A. Sreekumaran Nair and T. Pradeep, PCT application no. PCT/IN2005/000002, issued in USA as patent. no. US7968493 B2; issued in Europe as patent, A method for decontaminating water containing pesticides, EP 1715947; in Germany as DE602005035747 D1, dated October 18, 2012. (corresponding to Indian patent no. 1)
  2. Organic polymer-inorganic fine particle antimicrobial composites and uses thereof, A. Sreekumaran Nair and T. Pradeep, PCT application no. PCT/IB2010/002016, dated Aug. 17, 2010, issued in USA as patent. no. US8268359 B2, dated September 18, 2012; issued in China as patent no.: CN102712463 B, dated December 03, 2014; issued in Japan as patent no.: JP5492301 B2, dated May 14, 2014.
  3. Method and apparatus for tunable electrical conductivity, Pradeep Thalappil, Chandramouli Subramaniam, PCT application no. PCT/IB2010/002036, dated August 17, 2010, issued in USA as patent no. US8519489 B2, dated August 27, 2013.
  4. Multielement and multiproperty tagging, P. R. Sajanlal and T. Pradeep, PCT application no. PCT/IB2010/002006, dated August 13, 2010, WO 2011/021085 A2, issued in USA as patent. no. US8659391 B2, dated February 25, 2014; issued in China as patent. no. CN102483866 B, dated July 22, 2015; issued in Japan as patent. no. JP 5931725.
  5. Gold and silver quantum clusters and methods for their preparation and use, T. Pradeep and E. S. Shibu, PCT application no. PCT/IB2011/000260, dated February 14, 2011, issued in USA as US8999717, dated April 7, 2015; issued in Japan as JP5750514 B2, dated July 22, 2015; issued in China as CN103314073 B, dated September 16, 2015.
  6. Organic templated nanometal oxyhydroxide, T. Pradeep, Shihabudheen M. Maliyekkal, Anshup, Udhaya Sankar, Amrita Chaudhary, PCT application no. PCT/IB2011/001551, dated June 2, 2011, issued in UAE for application no. 1238/2012; issued in Japan as JP5908462 B2, dated April 26, 2016; issued in Israel as 223388, dated May 1, 2019.
  7. Single container gravity-fed storage water purifier, T. Pradeep, Amrita Chaudhary, M. Udhaya Sankar and Anshup, PCT application no. PCT/IB2012/001237, issued in the Japan as JP6109815 B2 for application no. 2014-508886; issued in UAE for application no. 1161/2013; issued in Australia as patent no. AU2012251424 B2, issued in China as patent no. 2012800247893; issued in Israel as patent no. 229223. (corresponding to Indian patent no. 14)
  8. Methods of preparing metal quantum clusters in molecular confinement, T. Udayabhaskararao and T. Pradeep, PCT application no. PCT/IB2011/003105, dated December 22, 2011, issued in USA as patent no. US9034978 B2, dated May 19, 2015; issued in China as patent no. CN103827035 B, dated March 09, 2016; issued in Japan as patent no. JP6006319 B2, dated October 12, 2016.
  9. Visual detection of mercury ions, T. Pradeep, Ammu Mathew and P. R. Sajanlal, PCT/IB2012/001543, dated August 10, 2012; issued in China as patent no. CN104335041 B, dated August 24, 2016; issued in USA as patent no. US9733184 B2, dated August 15, 2017.
  10. Luminescent graphene patterns, T. Pradeep, T. S. Sreeprasad and Shihabudheen M. Maliyekkal, PCT application no. PCT/IB2012/001518, dated August 7, 2012, issued in USA as patent no. US9424505 B2, dated August 23, 2016.
  11. Mass spectrometry probes and systems for ionizing a sample, T. Pradeep, Depanjan Sarkar, Rahul Narayanan, R. G. Cooks, PCT application no. PCT/US2014/071856, dated December 22, 2014, issued in Japan as patent no. JP 6577950 B2, January 19, 2017; issued in USA as patent no. US10991564 B2. (corresponding to Indian patent no. 39)
  12. Coated mesoflowers for molecular detection and smart bar code materials, T. Pradeep, Ravindranathan Sajanlal Panikkanvalappil, PCT application no. PCT/IB2014/61096, dated April 30, 2014, issued in USA as patent no. US9903821 B2, dated February 27, 2018.
  13. Detection of quantity of water flow using quantum clusters, T. Pradeep, Leelavathi A, M. Udhaya Sankar, Amrita Chaudhary, Anshup, T. Udayabhaskararao, PCT application no. PCT/IB2013/01244, dated April 17, 2013, issued in China as patent no. CN104520706 B; issued in USA as patent no. US10041925 B2, dated August 7, 2018; issued in Japan as patent no. JP6367182 B2, dated August 8, 2018; issued in Mexico as patent no. MX362092 B, dated October 7, 2019; issued in Israel as patent no. IL20130235206, dated December 31, 2014.
  14. A composition for enhanced biocidal activity and a water purification device based on the same, T. Pradeep, M. Udhaya Sankar, Amrita Chaudhary, Sahaja Aigal, Swathy JR, Anshup, PCT application no. WO 2015/059562 A1, issued in UAE for the application no. PCT/IB2014/002316, issued in Australia for the application no. AU2014338691, issued in Brazil for the application no. BR11 2015 0323731, issued in Oman for the application no. OM/P/2015/00340, issued in Qatar for the application no. 2867CHE2013. (corresponding to Indian patent no. 30)
  15. A sustained silver release composition for water purification, T. Pradeep, Anshup, Amrita Chaudhary, M. Udhaya Sankar, and S. Gayathri, PCT application no. PCT/IB2012/001079, dated March 25, 2012, issued in Australia as patent no. AU2012241522 B2, dated June 8, 2017; issued in China as patent no. CN103702730 B, dated November 23, 2016; issued in Japan as patent no. JP6188676 B2, dated August 30, 2017. (corresponding to Indian patent no. 18)
  16. Water purification unit, Bhabendra Pradhan, Hiranmayee Vedam, Thalappil Pradeep, Anshup, Amrita, Chaudhary; Udhaya Sankar Mohan, Sahaja Aigal, PCT application no. PCT/US2012/032880 issued in UAE as patent no. 1080/2013, issued in Mexico as patent no. MX347341B; issued in Australia as patent no 2012243079, dated June 15, 2017.
  17. Multilayer organic-templated-boehmite-nanoarchitecture for fluoride removal, T. Pradeep, A. Leelavathi, Amrita Chaudhary, M. Udhaya Sankar and Anshup, PCT application no.PCT/IB2012/002885, issued in Australia as patent no. AU2012342118 B2, dated April 26, 2018; issued in China as patent no. CN104168996 B, dated March 15, 2017; issued in Japan as patent no. JP6336396 B2, dated June 06, 2018; issued in US as patent no. US 10035131 B2, dated July 31, 2018. (corresponding to Indian patent no. 13)