Patents by Inventor Omprakash Chakrabarti

Omprakash Chakrabarti 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 of making silicon—silicon carbide ceramic using biopreform, silicon—silicon carbide ceramic obtained thereby
    Patent number: 7368405
    Abstract: The present invention relates to a process of making silicon-silicon carbide ceramic using biopreform derived from monocotyledonous caudex plant stem. The present invention also provides a silicon-silicon carbide ceramic made using a biopreform derived from monocotyledonous caudex plant stem.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: May 6, 2008
    Assignee: Council of Scientific and Industrial Research
    Inventors: Omprakash Chakrabarti, Himadri Sekhar Maiti, Rabindranath Mazumdar
  • Process for making biopreform from monocotyledonous caudex plant stem, biopreform obtained thereby and use thereof
    Publication number: 20060127662
    Abstract: A method of making biopreform from the stem of monocotyledonous caudex plant, that is suitable for liquid infiltration and gaseous transportation of materials, is disclosed. Wood from caudex stem of trees such as coconut (Cocos nucifera), palmyra palm (Borassus flabellifer), date palm (Phoenics dactylifera), is used as a precursor material which is transformed under simple pyrolitic conditions under self-generated ambient atmosphere to biopreform having microstructural features typical of a monocotyledonous caudex tree. The biopreform is capable of liquid infiltration and gaseous transportation processing of materials in an appreciably shorter processing periods, because of its preservation of the structural and anatomical features of the parent plants with high precision.
    Type: Application
    Filed: February 3, 2006
    Publication date: June 15, 2006
    Inventors: Omprakash Chakrabarti, Himadri Maiti, Rabindranath Mazumdar
  • Process of making silicon - silicon carbide ceramic using biopreform, silicon - silicon carbide ceramic obtained thereby
    Publication number: 20040135275
    Abstract: The present invention relates to a process of making silicon-silicon carbide ceramic using biopreform derived from monocotyledonous caudex plant stem. The present invention also provides a silicon—silicon carbide ceramic made using a biopreform derived from monocotyledonous caudex plant stem.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 15, 2004
    Applicant: Council of Scientific and Industrial Research
    Inventors: Omprakash Chakrabarti, Himadri Sekhar Maiti, Rabindranath Mazumdar
  • Process for making biopreform from monocotyledonous caudex plant, biopreform obtained thereby, and use thereof
    Publication number: 20040126561
    Abstract: A method of making biopreform from the stem of monocotyledonous caudex plant, that is suitable for liquid infiltration and gaseous transportation of materials, is disclosed. Wood from caudex stem of trees such as coconut (Cocos nucifera), palmyra palm (Borassus flabellifer), date palm (Phoenics dactylifera), is used as a precursor material which is transformed under simple pyrolitic conditions under self-generated ambient atmosphere to biopreform having microstructural features typical of a monocotyledonous caudex tree. The biopreform is capable of liquid infiltration and gaseous transportation processing of materials in an appreciably shorter processing periods, because of its preservation of the structural and anatomical features of the parent plants with high precision.
    Type: Application
    Filed: December 30, 2002
    Publication date: July 1, 2004
    Applicant: Council of Scientific and Industrial Research
    Inventors: Omprakash Chakrabarti, Himadri Sekhar Maiti, Rabindranath Mazumdar