Patents by Inventor Uma Sankar Satpathy

Uma Sankar Satpathy 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).

  • CONCURRENT SOLID & MELT STATE GRAFTING OF COAGENTS FOR MAKING LONG CHAIN BRANCHED POLYPROPYLENE VIA DIRECT REACTIVE EXTRUSION PROCESS
    Publication number: 20130059958
    Abstract: A process of modifying propylene polymers via melt grafting of polyfunctional monomer (PFMs) involving pre-initiative step thereby facilitating perfect absorption of PFMs on polymer matrix and initiate their grafting prior to reactive extrusion without using free radical initiators so that branching can be introduced in propylene polymer matrix. The modified propylene polymers showed enhanced shear sensitivity, increase in molecular weight, broadening of molecular weight distribution and strain hardening.
    Type: Application
    Filed: January 14, 2011
    Publication date: March 7, 2013
    Applicant: RELIANCE INDUSTRIES LIMITED
    Inventors: Uma Sankar Satpathy, Shashikant, Ajit Behari Mathur
  • Process for the production of polylactic acid (PLA) from renewable feedstocks
    Patent number: 7507561
    Abstract: The present invention relates to an efficient process for producing polylactic acid from fermentation of renewable agricultural feed-stocks not limited to molasses or cane bagasse employed as starting material. The present invention in particular provides a cost effective and industrially scalable process for producing polylactic acid obtained by fermentation of Lactic acid having industrial applications.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: March 24, 2009
    Assignee: Reliance Life Sciences Pvt. Ltd.
    Inventors: Sonti Venkata Ramakrishna, Vidhya Rangaswamy, Dharmendra Jain, Raj Kumar Jagdambalal, Pradip Shantibhai Patel, Debojyoti Kar, Subramania Ramachandran, Pralhad Ambadas Ganeshpure, Uma Sankar Satpathy