Patents by Inventor Tarun K. Dhar

Tarun K. Dhar 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).

  • Highly cost-effective analytical device for performing immunoassays with ultra high sensitivity
    Patent number: 7312028
    Abstract: A simple easy to manufacture analytical device capable of performing membrane based immunoassays on batch of samples within 3 to 10 minutes wherein the method permits focused application of samples, costly labeled immunoassay and signal amplification reagents, said device includes an antibody-immobilized micro porous membrane, breadth corner layer of which is directly attached to a semi-rigid liquid-impervious body with water insoluble adhesive; absorbent body is provided separately and is not attached to analytical device during manufacture, absorbent body is wetted and is placed proximal to the lower surface of the membrane thereby forming networks of capillary channels with the absorbent body; flow of samples or reagents is always kept downwards and focused without application of any force to the absorbent body and the use of disposable adsorbent body permits stepwise addition of signal amplification reagents for ultra sensitive detection of diagnostically important molecules by visual examination of the m
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: December 25, 2007
    Assignees: Council of Scientific & Industrial Research, Department of Biotechnology, A Department of Government of India
    Inventors: Tarun K. Dhar, Arindam Pal
  • Highly cost-effective analytical device for performing immunoassays with ultra high sensitivity
    Patent number: 7087389
    Abstract: A simple easy to manufacture analytical device capable of performing membrane based immunoassays on batch of samples within 3 to 10 minutes wherein the method permits focused application of samples, costly labeled immunoassay and signal amplification reagents, said device includes an antibody-immobilized micro porous membrane, breadth corner layer of which is directly attached to a semi-rigid liquid-impervious body with water insoluble adhesive; absorbent body is provided separately and is not attached to analytical device during manufacture, absorbent body is wetted and is placed proximal to the lower surface of the membrane thereby forming networks of capillary channels with the absorbent body; flow of samples or reagents is always kept downwards and focused without application of any force to the absorbent body and the use of disposable adsorbent body permits stepwise addition of signal amplification reagents for ultra sensitive detection of diagnostically important molecules by visual examination of the m
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: August 8, 2006
    Assignees: Council of Scientific & Industrial Research, Department of Biotechnology, A Department of Govenment of India
    Inventors: Tarun K. Dhar, Arindam Pal
  • Highly cost-effective analytical device for performing immunoassays with ultra high sensitivity
    Publication number: 20020110803
    Abstract: A simple easy to manufacture analytical device capable of performing membrane based immunoassays on batch of samples within 3 to 10 minutes wherein the method permits focused application of samples, costly labeled immunoassay and signal amplification reagents, said device includes an antibody-immobilized micro porous membrane, breadth corner layer of which is directly attached to a semi-rigid liquid-impervious body with water insoluble adhesive; absorbent body is provided separately and is not attached to analytical device during manufacture, absorbent body is wetted and is placed proximal to the lower surface of the membrane thereby forming networks of capillary channels with the absorbent body; flow of samples or reagents is always kept downwards and focused without application of any force to the absorbent body and the use of disposable adsorbent body permits stepwise addition of signal amplification reagents for ultra sensitive detection of diagnostically important molecules by visual examination of the m
    Type: Application
    Filed: February 9, 2001
    Publication date: August 15, 2002
    Inventors: Tarun K. Dhar, Arindam Pal