Patents by Inventor Smitha Biduru

Smitha Biduru 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).

  • Recovery of sodium thiocyanate from industrial process solution using nanofiltration technique
    Patent number: 7314606
    Abstract: The present invention relates to a membrane-based nanofiltration process for separating sodium thiocyanate (NaSCN) from industrial solution containing impurities such as ?-sulfopropionic acid, ?-sulfopropionitrile, sodium sulfate and salts of iron and calcium in a single step to obtain a colorless aqueous solution for spinning of acrylic fiber in textile industry.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: January 1, 2008
    Assignee: Council of Scientific and Industrial Research
    Inventors: Sundergopal Sridhar, Suryanarayana Murthy Gorugantu, Suhanya Duraiswamy, Smitha Biduru, Ramakrishna Machiraju
  • Recovery of sodium thiocyanate from industrial process solution using nanofiltration technique
    Publication number: 20050214192
    Abstract: The present invention relates to a membrane-based nanofiltration process for separating sodium thiocyanate (NaSCN) from industrial solution containing impurities such as ?-sulfopropionic acid, ?-sulfopropionitrile, sodium sulfate and salts of iron and calcium in a single step to obtain a colorless aqueous solution for spinning of acrylic fibre in textile industry.
    Type: Application
    Filed: March 29, 2004
    Publication date: September 29, 2005
    Inventors: Sundergopal Sridhar, Suryanarayana Gorugantu, Suhanya Duraiswamy, Smitha Biduru, Ramakrishna Machiraju