Patents by Inventor Chethana Sampangi

Chethana Sampangi 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).

  • Process for separation and recovery of polyethylene glycol (PEG) from spent aquesous two-phase systems
    Patent number: 6863828
    Abstract: The preset invention relates to the process for the separation and recovery of polyethylene glycol (PEG) from spent aqueous two-phase systems (ATPSs). The present invention more particularly relates to the recovery of PEG from SPENT aqueous two-phase systems by the application of microwave energy.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: March 8, 2005
    Assignee: Council of Scientific and Industrial Research
    Inventors: Naveen Nagaraj, Chethana Sampangi, Sreesaila M. S. R. Karumanchi
  • PROCESS FOR SEPARATION AND RECOVERY OF POLYETHYLENE GLYCOL (PEG) FROM SPENT AQUEOUS TWO-PHASE SYSTEMS
    Publication number: 20040188358
    Abstract: The present invention relates to the process for the separation and recovery of polyethylene glycol (PEG) from spent aqueous two-phase systems (ATPSs). The present invention more particularly relates to the recovery of PEG from SPENT aqueous two-phase systems by the application of microwave energy.
    Type: Application
    Filed: March 25, 2003
    Publication date: September 30, 2004
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Naveen Nagaraj, Chethana Sampangi, Sreesaila M.S.R. Karumanchi