Patents by Inventor Thumu Udayabhaskara Rao

Thumu Udayabhaskara Rao 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).

  • Detection of quantity of water flow using quantum clusters
    Patent number: 10041925
    Abstract: The preparation of silver quantum clusters embedded in organic-templated-boehmite-nanoarchitecture (OTBN) and its use as a sensor for quantity of water flow measured by change of color in visible light upon flow of contaminated water have been provided. Silver quantum clusters-embedded OTBN are highly luminescent. Since the quantum clusters are embedded in the matrix, they are highly stable over a long period of time. The composition described here is utilized in the form of a device for ‘visible/ultraviolet light color change-based detection’ upon passage of water through a water purification device. Upon interaction with ions present in water, luminescent silver clusters undergo chemical transformation to Ag2S nanoparticles. The transformation is reflected in the form of visible color change (from pink to black) and luminescence quenching (from red emission to negligible luminescence).
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: August 7, 2018
    Assignee: Indian Institute of Technology
    Inventors: Thalappil Pradeep, Leelavathi Annamalai, Mohan Udhaya Sankar, Chaudhary Amrita, Anshup, Thumu Udayabhaskara Rao
  • DETECTION OF QUANTITY OF WATER FLOW USING QUANTUM CLUSTERS
    Publication number: 20150132856
    Abstract: The preparation of silver quantum clusters embedded in organic-templated-boehmite-nanoarchitecture (OTBN) and its use as a sensor for quantity of water flow measured by change of color in visible light upon flow of contaminated water have been provided. Silver quantum clusters-embedded OTBN are highly luminescent. Since the quantum clusters are embedded in the matrix, they are highly stable over a long period of time. The composition described here is utilized in the form of a device for ‘visible/ultraviolet light color change-based detection’ upon passage of water through a water purification device. Upon interaction with ions present in water, luminescent silver clusters undergo chemical transformation to Ag2S nanoparticles. The transformation is reflected in the form of visible color change (from pink to black) and luminescence quenching (from red emission to negligible luminescence).
    Type: Application
    Filed: April 17, 2013
    Publication date: May 14, 2015
    Inventors: Thalappil Pradeep, Leelavathi Annamalai, Mohan Udhaya Sankar, Chaudhary Amrita, n/a Anshup, Thumu Udayabhaskara Rao