Patents by Inventor Dharmakeerthi Nawarathna

Dharmakeerthi Nawarathna 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).

  • Publication number: 20220266214
    Abstract: The present invention relates to a device for a scalable biomanufacturing platform for the production of modified cells such as CAR-modified T-cells while eliminating on-target/off-tumor toxicity and decreasing the current production cost by 500 times (per treatment), and to attendant methods. The includes a first chamber for proliferating a population of cells and a second chamber for modifying the cells to express a desired T-cell receptor antigen.
    Type: Application
    Filed: March 2, 2022
    Publication date: August 25, 2022
    Inventors: Dharmakeerthi NAWARATHNA, Logeeshan VELMANICKAM, Vidura JAYASOORIYA
  • Patent number: 10794894
    Abstract: The present invention relates to an apparatus and methods for an integrated dielectrophoretic (DEP) and surface plasmonic platform to quantify as little as 1 femptomolar to 1 picomolar of fluorescent molecules in low conductivity buffers.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: October 6, 2020
    Assignee: NDSU Research Foundation
    Inventors: Dharmakeerthi Nawarathna, Logeeshan Velmanickam
  • Patent number: 8365311
    Abstract: Provided is a highly selective and non-destructive method and apparatus for the measurement of one or more target molecules within a target environment. The apparatus comprises of a modified AFM (atomic force microscope) tip to create a tapered nanoscale co-axial cable, and wherein the application of an alternating potential between the inner and outer electrodes of the co-axial cable creates a dielectrophoretic force for attracting molecules toward the tip-end which is pre-treated with one or more specific ligands.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: January 29, 2013
    Assignee: The Regents of the University of California
    Inventors: Dharmakeerthi Nawarathna, H. Kumar Wickaramsinghe
  • Publication number: 20120131703
    Abstract: Provided is a highly selective and non-destructive method and apparatus for the measurement of one or more target molecules within a target environment. The apparatus comprises of a modified AFM (atomic force microscope) tip to create a tapered nanoscale co-axial cable, and wherein the application of an alternating potential between the inner and outer electrodes of the co-axial cable creates a dielectrophoretic force for attracting molecules toward the tip-end which is pre-treated with one or more specific ligands.
    Type: Application
    Filed: August 11, 2011
    Publication date: May 24, 2012
    Inventors: Dharmakeerthi Nawarathna, H. Kumar Wickaramsinghe
  • Publication number: 20120115755
    Abstract: A microfluidic device may employ one or more sorting stations for separating target species from other species in a sample. The separation is driven by magnetophoresis. A sorting station generally includes separate buffer and sample streams. A magnetic field gradient applied to the sorting station deflects the flow path of magnetic particles (which selectively label the target species) from a sample stream into a buffer stream. The buffer stream leaving the sorting station is used to detect or further process purified target species labeled with the magnetic particles.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 10, 2012
    Inventors: Sang-Hyun Oh, Amarendra Kumar Singh, Yanting Zhang, Dharmakeerthi Nawarathna, Unyoung Kim, Patrick Sean Daugherty, Hyongsok Soh, Brian Scott Ferguson
  • Publication number: 20120108470
    Abstract: A microfluidic device may employ one or more sorting stations for separating target species from other species in a sample. The separation is driven by magnetophoresis. A sorting station generally includes separate buffer and sample streams. A magnetic field gradient applied to the sorting station deflects the flow path of magnetic particles (which selectively label the target species) from a sample stream into a buffer stream. The buffer stream leaving the sorting station is used to detect or further process purified target species labeled with the magnetic particles.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 3, 2012
    Inventors: Sang-Hyun Oh, Amarendra Kumar Singh, Yanting Zhang, Dharmakeerthi Nawarathna, Unyoung Kim, Patrick Sean Daugherty, Hyongsok Soh, Brian Scott Ferguson