Patents by Inventor Samar Das

Samar Das 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 the production of zirconium boride powder
    Patent number: 6908599
    Abstract: The present invention provides an improved process for the manufacture of zirconium boride by reacting boric acid, a Zirconium compound and magnesium and leaching the resulting product mixture to obtain zirconium boride with high purity.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: June 21, 2005
    Assignee: Council of Scientific and Industrial Research
    Inventors: Suman Kumari Mishra, Samar Das, Rajendra Prakash Goel, Patcha Ramachandra Rao
  • Process for the preparation of nanosized iron oxide by biomimetic route
    Patent number: 6800271
    Abstract: The present invention relates to a biomimetic process for preparation of nanosized magnetite particles used for the enhancement of magnetic resonance imaging contrast.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: October 5, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Arvind Sinha, Jui Chakraborty, Samar Das, Swapan K. Das, Venkatesh Rao, Patcha R. Rao
  • Process for the production of zirconium boride powder
    Publication number: 20040022712
    Abstract: The present invention provides an improved process for the manufacture of zirconium boride by reacting boric acid, a Zirconium compound and magnesium and leaching the resulting product mixture to obtain zirconium boride with high purity.
    Type: Application
    Filed: March 20, 2003
    Publication date: February 5, 2004
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Suman Kumari Mishra, Samar Das, Rajendra Prakash Goel, Patcha Ramachandra Rao
  • Process for the preparation of nanosozed iron oxide by biomimetic route
    Publication number: 20030185748
    Abstract: The present invention relates to a biomimetic process for preparation of nanosized magnetite particles used for the enhancement of magnetic resonance imaging contrast.
    Type: Application
    Filed: April 1, 2002
    Publication date: October 2, 2003
    Inventors: Arvind Sinha, Jui Chakraborty, Samar Das, Swapan K. Das, Venkatesh Rao, Patcha R. Rao