Patents by Inventor Suganthi Ramachandran

Suganthi Ramachandran 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).

  • Compositions and methods for recovery of nucleic acids or proteins from tissue samples fixed in cytology media
    Patent number: 9410146
    Abstract: The present invention provides compositions and methods for improving nucleic acid or protein recovery from fixed biological samples.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: August 9, 2016
    Assignee: QIAGEN GAITHERSBURG INC.
    Inventors: Shubing Liu, Suganthi Ramachandran
  • Sample processing method using tube strips and tube strip holder
    Patent number: 9260763
    Abstract: An automated process for converting samples includes: receiving tube strips having a number of sample tubes and samples therein, transferring multiple tube strips to a tube strip holder, dispensing sample conversion buffer into each tube, shaking the tube strip holder a first time, centrifuging the tube strip holder, removing a liquid supernatant from each tube, simultaneously inspecting the contents of each tube, dispensing a specimen transport medium and a denaturation reagent into each tube, shaking the tube strip holder a second time, heating the tube strip holder for a first length of time, shaking the tube strip holder a third time, heating the tube strip holder for a second length of time, shaking the tube strip holder a fourth time, and transferring at least a portion of each sample to a respective well on an output plate.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: February 16, 2016
    Assignee: Qiagen Gaithersburg, Inc.
    Inventors: Bradley Scott Thomas, Suganthi Ramachandran, Jason Troxell, Bowen Cui, Carl Theodore Edens, Andrew Leonard, Bert Jungheim
  • Fast results hybrid capture assay on an automated platform
    Patent number: 8877436
    Abstract: The present invention comprises a method that provides fast and reliable results for detecting the presence of a target nucleic acid molecule in a sample.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: November 4, 2014
    Assignee: Qiagen Gaithersburg, Inc.
    Inventors: Paul Eder, Eric Payne, Irina Nazarenko, Suganthi Ramachandran, Arvind Virmani, Laura Bell
  • COMPOSITIONS AND METHODS FOR RECOVERY OF NUCLEIC ACIDS OR PROTEINS FROM TISSUE SAMPLES FIXED IN CYTOLOGY MEDIA
    Publication number: 20140199686
    Abstract: The present invention provides compositions and methods for improving nucleic acid or protein recovery from fixed biological samples.
    Type: Application
    Filed: March 17, 2014
    Publication date: July 17, 2014
    Applicant: QIAGEN GAITHERSBURG, INC.
    Inventors: Shubing LIU, Suganthi RAMACHANDRAN
  • Fast results hybrid capture assay and system
    Patent number: 8735564
    Abstract: The present invention comprises a method that provides fast and reliable results for detecting the presence of a target nucleic acid molecule in a sample.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 27, 2014
    Assignee: Qiagen Gaithersburg, Inc.
    Inventors: Paul Eder, Eric Payne, Irina Nazarenko, Suganthi Ramachandran, Arvind Virmani, Laura Bell
  • SAMPLE PROCESSING APPARATUS AND METHODS
    Publication number: 20140113278
    Abstract: An automated process for converting samples includes: receiving tube strips having a number of sample tubes and samples therein, transferring multiple tube strips to a tube strip holder, dispensing sample conversion buffer into each tube, shaking the tube strip holder a first time, centrifuging the tube strip holder, removing a liquid supernatant from each tube, simultaneously inspecting the contents of each tube, dispensing a specimen transport medium and a denaturation reagent into each tube, shaking the tube strip holder a second time, heating the tube strip holder for a first length of time, shaking the tube strip holder a third time, heating the tube strip holder for a second length of time, shaking the tube strip holder a fourth time, and transferring at least a portion of each sample to a respective well on an output plate.
    Type: Application
    Filed: October 22, 2012
    Publication date: April 24, 2014
    Applicant: QIAGEN GAITHERSBURG, INC.
    Inventors: BRADLEY SCOTT THOMAS, SUGANTHI RAMACHANDRAN, JASON TROXEL, BOWEN CUI, CARL THEODORE EDENS, ANDREW LEONARD, BERT JUNGHEIM
  • FAST RESULTS HYBRID CAPTURE ASSAY AND SYSTEM
    Publication number: 20130011830
    Abstract: The present invention comprises a method that provides fast and reliable results for detecting the presence of a target nucleic acid molecule in a sample.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: QIAGEN GAITHERSBURG INC.
    Inventors: Paul EDER, Eric PAYNE, Irina NAZARENKO, Suganthi RAMACHANDRAN, Arvind VIRMANI, Laura BELL
  • Fast results hybrid capture assay and system
    Patent number: 8288520
    Abstract: The present invention comprises a method that provides fast and reliable results for detecting the presence of a target nucleic acid molecule in a sample.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: October 16, 2012
    Assignee: Qiagen Gaithersburg, Inc.
    Inventors: Paul Eder, Eric Payne, Irina Nazarenko, Suganthi Ramachandran, Arvind Virmani, Laura Bell
  • COMPOSITIONS AND METHODS FOR RECOVERY OF NUCLEIC ACIDS OR PROTEINS FROM TISSUE SAMPLES FIXED IN CYTOLOGY MEDIA
    Publication number: 20110065906
    Abstract: The present invention provides compositions and methods for improving nucleic acid or protein recovery from fixed biological samples.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 17, 2011
    Applicant: QIAGEN GAITHERSBURG INC.
    Inventors: Shubing LIU, Suganthi Ramachandran
  • FAST RESULTS HYBRID CAPTURE ASSAY AND SYSTEM
    Publication number: 20100159463
    Abstract: The present invention comprises a method that provides fast and reliable results for detecting the presence of a target nucleic acid molecule in a sample.
    Type: Application
    Filed: October 26, 2009
    Publication date: June 24, 2010
    Applicant: QIAGEN GAITHERSBURG INC.
    Inventors: Paul Eder, Eric Payne, Irina Nazarenko, Suganthi Ramachandran, Arvind Virmani, Laura Bell
  • FAST RESULTS HYBRID CAPTURE ASSAY ON AN AUTOMATED PLATFORM
    Publication number: 20100105060
    Abstract: The present invention comprises a method that provides fast and reliable results for detecting the presence of a target nucleic acid molecule in a sample.
    Type: Application
    Filed: October 26, 2009
    Publication date: April 29, 2010
    Applicant: QIAGEN GAITHERSBURG INC.
    Inventors: Paul EDER, Eric PAYNE, Irina NAZARENKO, Suganthi Ramachandran, Arvind VIRMANI, Laura BELL