Patents by Inventor Sandip Chatterjee

Sandip Chatterjee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • METHOD FOR RECOVERY OF METALS AND METAL ALLOYS FROM WASTE LITHIUM-ION BATTERIES
    Publication number: 20240002978
    Abstract: The present disclosure relates to a method for the recovery of metals and metal alloys from waste Lithium-ion batteries. The method of the present disclosure uses a smelting process that is energy-efficient, cost-effective and requires comparatively reduced time. Further, the method of the present disclosure has a high metal extraction efficiency. Furthermore, the heat treatment of the residual particulate matter results in the formation of binary Co—Ni alloy and prevents the formation of Co—Ni—Mn ternary alloy during smelting.
    Type: Application
    Filed: June 23, 2023
    Publication date: January 4, 2024
    Inventors: Rajesh Kumar Sivasankaran NAIR, Ajay KAUSHAL, Amit BARNWAL, Sandip CHATTERJEE, Ratheesh RAVENDRAN
  • METHOD FOR RECOVERY OF METAL OXIDES/CARBONATES FROM ASSORTED WASTE LI-ION BATTERIES
    Publication number: 20230391632
    Abstract: The present disclosure relates to a method for recovery of metal oxides/carbonates from assorted waste Li-ion batteries. The method uses less solvent and has a high extraction efficiency. Further, the method requires comparatively lesser extraction time to extract metals. Furthermore, the method of the present disclosure is cost-effective.
    Type: Application
    Filed: June 1, 2023
    Publication date: December 7, 2023
    Inventors: Ajay KAUSHAL, Amit BARNWAL, Rajesh Kumar Siva Sankaran NAIR, Ratheesh RAVENDRAN, Sandip CHATTERJEE
  • X-ray shielding material and method of preparation thereof
    Patent number: 9881707
    Abstract: The present disclosure relates to a process for synthesis of barium bismuth sulfide nanofibers, having equivalent shielding capacity as lead. The present disclosure also relates to a radiation shielding articles and cosmeceuticals.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: January 30, 2018
    Assignee: CENTRE FOR MATERIALS FOR ELECTRONICS TECHNOLOGY (C-MET)
    Inventors: Bharat B. Kale, Milind V. Kulkarni, Rajendra P. Panmand, Ujjwala V. Kawade, Sanjay K. Apte, Sonali D. Naik, Jalindar D. Ambekar, Ravindra S. Sonawane, Dinesh P. Amlanerkar, Nilofer Shroff, Sandip Chatterjee
  • X-RAY SHIELDING MATERIAL AND METHOD OF PREPARATION THEREOF
    Publication number: 20150287485
    Abstract: The present disclosure relates to a process for synthesis of barium bismuth sulfide nanofibers, having equivalent shielding capacity as lead. The present disclosure also relates to a radiation shielding articles and cosmeceuticals.
    Type: Application
    Filed: December 17, 2013
    Publication date: October 8, 2015
    Applicants: CENTRE FOR MATERIALS FOR ELECTRONICS TECHNOLOGY (C-MET), SECRETARY, DEPARTMENT OF ELECTRONICS AND INFORMATION TECHNOLOGY (DEITY)
    Inventors: Bharat B. Kale, Milind V. Kulkarni, Rajendra P. Panmand, Ujjwala V. Kawade, Sanjay K. Apte, Sonali D. Naik, Jalindar D. Ambekar, Ravindra S. Sonawane, Dinesh P. Amlanerkar, Nilofer Shroff, Sandip Chatterjee
  • BARIUM ZIRCONIUM OXIDE (BaZrO3.BaCO3) NANOPARTICLES
    Publication number: 20140170088
    Abstract: The present disclosure provides nanoparticles of barium zirconium oxide (BaZrO3.BaCO3) and a process for preparation thereof. The present disclosure further provides a coating formulation that chiefly comprises the BaZrO3.BaCO3 nanoparticles along with its method of preparation. Still further, the present disclosure provides X-ray retardant articles and an X-ray retardant preparation for topical application.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 19, 2014
    Applicants: SECRETARY, DEPARTMENT OF ELECTRONICS AND INFORMATION TECHNOLOGY (DeitY), CENTRE FOR MATERIALS FOR ELECTRONICS TECHNOLOGY (C-MET)
    Inventors: Bharat Bhanudas Kale, Milind Vyankatesh Kulkarni, Rajendra Popat Panmand, Ujjwala Vilas Kawade, Sanjay Krushnaji Apte, Sonali Deepak Naik, Jalindar Dnyandev Ambekar, Ravindra Shravan Sonawane, Ramadoss Marimuthu, Dinesh Pundalik Amalnerkar, Nilofer Shroff, Sandip Chatterjee