Patents by Inventor Helen Hwai-an Lee

Helen Hwai-an Lee 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).

  • Nucleic acid amplification and testing
    Patent number: 11447821
    Abstract: Methods for amplifying a target nucleic acid by self-sustained amplification methods are described. The methods are designed, in particular, to be carried out without use of specialised lab facilities or instruments. Compositions, lyophilised formulations, and kits for carrying out the methods are also described.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: September 20, 2022
    Assignee: CAMBRIDGE ENTERPRISE LIMITED
    Inventors: Helen Hwai-an Lee, Magda Anastassova Dineva, Fiona Frances Sarah Fletcher-Brown
  • NUCLEIC ACID AMPLIFICATION AND TESTING
    Publication number: 20200157617
    Abstract: Methods for amplifying a target nucleic acid by self-sustained amplification methods are described. The methods are designed, in particular, to be carried out without use of specialised lab facilities or instruments. Compositions, lyophilised formulations, and kits for carrying out the methods are also described.
    Type: Application
    Filed: January 24, 2020
    Publication date: May 21, 2020
    Applicant: CAMBRIDGE ENTERPRISE LIMITED
    Inventors: Helen Hwai-an Lee, Magda Anastassova Dineva, Fiona Frances Sarah Fletcher-Brown
  • Nucleic acid amplification and testing
    Patent number: 10563254
    Abstract: Methods for amplifying a target nucleic acid by self-sustained amplification methods are described. The methods are designed, in particular, to be carried out without use of specialised lab facilities or instruments. Compositions, lyophilised formulations, and kits for carrying out the methods are also described.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: February 18, 2020
    Assignee: CAMBRIDGE ENTERPRISE LIMITED
    Inventors: Helen Hwai-an Lee, Magda Anastassova Dineva, Fiona Frances Sarah Fletcher-Brown
  • Device, system and method processing a sample
    Patent number: 10315195
    Abstract: A device for the processing of a sample comprises a location apparatus, a processing chamber for receiving the sample and a plurality of reagent chambers. The reagent chambers have openings defined in the location apparatus. The processing chamber is movable relative to the reagent chambers to enable sequential communication with each reagent chamber in turn.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: June 11, 2019
    Assignees: Diagnostics for the Real World, Ltd., Cambridge Enterprise Limited
    Inventors: Helen Hwai-an Lee, Magda Anastassova Dineva, Craig Alan Wisniewski, Phillip John Stankus
  • Device, System And Method For Processing A Sample
    Publication number: 20180036726
    Abstract: A device for the processing of a sample comprises a location apparatus, a processing chamber for receiving the sample and a plurality of reagent chambers. The reagent chambers have openings defined in the location apparatus. The processing chamber is movable relative to the reagent chambers to enable sequential communication with each reagent chamber in turn.
    Type: Application
    Filed: October 13, 2017
    Publication date: February 8, 2018
    Inventors: Helen Hwai-an Lee, Magda Anastassova Dineva, Craig Alan Wisniewski, Phillip John Stankus
  • Device, system and method for processing a sample
    Patent number: 9839909
    Abstract: A device for the processing of a sample comprises a location apparatus, a processing chamber for receiving the sample and a plurality of reagent chambers. The reagent chambers have openings defined in the location apparatus. The processing chamber is movable relative to the reagent chambers to enable sequential communication with each reagent chamber in turn.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: December 12, 2017
    Assignees: Diagnostics for the Real World, Ltd., Cambridge Enterprise Limited
    Inventors: Helen Hwai-an Lee, Magda Anastassova Dineva, Craig Alan Wisniewski, Phillip John Stankus
  • NUCLEIC ACID AMPLIFICATION AND TESTING
    Publication number: 20100136542
    Abstract: Methods for amplifying a target nucleic acid by self-sustained amplification methods are described. The methods are designed, in particular, to be carried out without use of specialised lab facilities or instruments. Compositions, lyophilised formulations, and kits for carrying out the methods are also described.
    Type: Application
    Filed: January 23, 2008
    Publication date: June 3, 2010
    Applicant: CAMBRIDGE ENTERPRISE LIMITED
    Inventors: Helen Hwai-an Lee, Magda Anastassova Dineva, Fiona Frances Sarah Fletcher-Brown
  • DEVICE, SYSTEM AND METHOD FOR PROCESSING A SAMPLE
    Publication number: 20100028204
    Abstract: A device for the processing of a sample comprises a location apparatus, a processing chamber for receiving the sample and a plurality of reagent chambers. The reagent chambers have openings defined in the location apparatus. The processing chamber is movable relative to the reagent chambers to enable sequential communication with each reagent chamber in turn.
    Type: Application
    Filed: July 27, 2007
    Publication date: February 4, 2010
    Inventors: Helen Hwai-an Lee, Magda Anastossova Dineva, Craig Alan Wisniewski, Phillip John Stankus
  • Liquid sampler and method
    Patent number: 7547298
    Abstract: In a sampler for sampling a first portion of a liquid flow, the liquid flow enters at a sampler inlet (12). The sample passes through a valve (30) into a sample chamber (8) and then the valve closes, diverting the remainder of the liquid flow to a sampler overflow (6). The valve comprises a valve inlet (24) coupled to the sampler inlet, a valve outlet (38, 36) opening into the sample chamber and positioned, in use, substantially below the valve inlet, a shut-off chamber (32) separating the valve outlet from the valve inlet, and a valve overflow (34) leading from the shut-off chamber to the sampler overflow (6). When the liquid level in the sample chamber rises to a predetermined level it disrupts the flow of liquid through the valve outlet and diverts later flow through the valve inlet into the shut-off chamber and through the valve overflow.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: June 16, 2009
    Assignee: Diagnostics for the Real World, Ltd.
    Inventors: Helen Hwai-an Lee, Grant Timothy Lewis Smetham, Phillip John Stankus, Shaun Christopher Hazlewood, Elipidio Cesar Braga Nadala, Craig Alan Wisniewski
  • Method for the immunological determination of a biological material in a sample
    Patent number: 5866350
    Abstract: A method for determining a cell surface antigen comprising(a) immobilizing an antibody specific for the cell surface antigen to be determined on a solid phase;(b) immobilizing sample cell suspected of containing said cell surface antigen with the solid-phase antibody to bind the cell surface antigen and antibody;(c) the solid phase is washed after incubation; and(d) the presence of the cell surface antigen is detected by means of a property inherent to the cell by cellular enzymatic activity.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: February 2, 1999
    Assignee: Helen Hwai-An Lee
    Inventors: Michel Etienne Canavaggio, Helen Hwai-an Lee