Patents by Inventor Vi-en Choong

Vi-en Choong 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).

  • Patent number: 11008612
    Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: May 18, 2021
    Assignee: Life Technologies Corporation
    Inventors: Joseph Beechem, Theo Nikiforov, Vi-En Choong, Xinzhan Peng, Guobin Luo, Cheng-Yao Chen, Michael Previte
  • Publication number: 20190062829
    Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.
    Type: Application
    Filed: September 6, 2018
    Publication date: February 28, 2019
    Inventors: Joseph BEECHEM, Theo NIKIFOROV, Vi-En CHOONG, Xinzhan PENG, Guobin LUO, Cheng-Yao CHEN, Michael PREVITE
  • Patent number: 10093974
    Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: October 9, 2018
    Assignee: Life Technologies Corporation
    Inventors: Joseph Beechem, Theo Nikiforov, Vi-En Choong, Xinzhan Peng, Guobin Luo, Cheng-Yao Chen, Michael Previte
  • Publication number: 20170283868
    Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.
    Type: Application
    Filed: June 13, 2017
    Publication date: October 5, 2017
    Inventors: Joseph BEECHEM, Theo NIKIFOROV, Vi-En CHOONG, Xinzhan PENG, Guobin LUO, Cheng-Yao CHEN, Michael PREVITE
  • Patent number: 9695471
    Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: July 4, 2017
    Assignee: Life Technologies Corporation
    Inventors: Joseph Beechem, Theo Nikiforov, Vi-En Choong, Xinzhan Peng, Guobin Luo, Cheng-Yao Chen, Michael Previte
  • Publication number: 20150118679
    Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.
    Type: Application
    Filed: December 29, 2014
    Publication date: April 30, 2015
    Inventors: Joseph BEECHEM, Theo NIKIFOROV, Vi-En CHOONG, Xinzhan PENG, Guobin LUO, Cheng-Yao CHEN, Michael PREVITE
  • Patent number: 8999674
    Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: April 7, 2015
    Assignee: Life Technologies Corporation
    Inventors: Joseph Beechem, Theo Nikiforov, Vi-En Choong, Xinzhan Peng, Guobin Luo, Cheng-Yao Chen, Michael Previte
  • Patent number: 8610114
    Abstract: A radiation emitting device comprising a first electrode, which emits first charge carriers having a first charge during operation, a first charge carrier transporting layer, which comprises a fluorescent substance, a second charge carrier transporting layer, which contains a phosphorescent substance, and a second electrode, which emits second charge carriers having a second charge during operation, wherein during operation the second charge carrier transporting layer is largely free of first charge carriers.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: December 17, 2013
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Vi-En Choong, Stelios A. Choulis, Matthew K. Mathai
  • Publication number: 20120329042
    Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.
    Type: Application
    Filed: July 30, 2012
    Publication date: December 27, 2012
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Joseph BEECHEM, Theo NIKIFOROV, Vi-En CHOONG, Xinzhan PENG, Guobin LUO, Cheng-Yao CHEN, Michael PREVITE
  • Publication number: 20120153305
    Abstract: A radiation emitting device comprising a first electrode, which emits first charge carriers having a first charge during operation, a first charge carrier transporting layer, which comprises a fluorescent substance, a second charge carrier transporting layer, which contains a phosphorescent substance, and a second electrode, which emits second charge carriers having a second charge during operation, wherein during operation the second charge carrier transporting layer is largely free of first charge carriers.
    Type: Application
    Filed: February 28, 2012
    Publication date: June 21, 2012
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Vi-En CHOONG, Stelios A. Choulis, Matthew K. Mathai
  • Patent number: 8173998
    Abstract: A radiation emitting device comprising a first electrode, which emits first charge carriers having a first charge during operation, a first charge carrier transporting layer, which comprises a fluorescent substance, a second charge carrier transporting layer, which contains a phosphorescent substance, and a second electrode, which emits second charge carriers having a second charge during operation, wherein during operation the second charge carrier transporting layer is largely free of first charge carriers.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: May 8, 2012
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Vi-En Choong, Stelios A. Choulis, Mathew K. Mathai
  • Patent number: 8101941
    Abstract: In at least one embodiment of the invention, an OLED device is disclosed in which the surface of one or more layers of the OLED are conditioned with metal nano-particles such that they are disposed along the interface between adjacent layers.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: January 24, 2012
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Stelios A. Choulis, Mathew Mathai, Vi-En Choong
  • Publication number: 20110281740
    Abstract: Provided herein are methods and compositions for real time single molecule sequencing of a polymeric molecule, such as a polynucleotide, by isolating the polymeric molecule in a nanofluidic device, subjecting it in situ to a polymerase reaction wherein various components of the polymerase reaction mixture are labeled, and determining the time-sequence of incorporation of monomeric subunits during the polymerization process.
    Type: Application
    Filed: June 30, 2009
    Publication date: November 17, 2011
    Inventors: Joseph Beechem, Vi-En Choong, Theo Nikiforov
  • Publication number: 20100255487
    Abstract: Provided herein are systems and methods for nucleotide incorporation reactions. The systems comprise polymerases having altered nucleotide incorporation kinetics and are linked to an energy transfer donor moiety, and nucleotide molecules linked with at least one energy transfer acceptor moiety. The donor and acceptor moieties undergo energy transfer when the polymerase and nucleotide are proximal to each other during nucleotide binding and/or nucleotide incorporation. As the donor and acceptor moieties undergo energy transfer, they generate an energy transfer signal which can be associated with nucleotide binding or incorporation. Detecting a time sequence of the generated signals, or the change in the signals, can be used to determine the order of the incorporated nucleotides, and can therefore be used to deduce the sequence of the target molecule.
    Type: Application
    Filed: March 26, 2010
    Publication date: October 7, 2010
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: JOSEPH BEECHEM, THEO NIKIFOROV, Vi-En Choong, Xinzhan Peng, Guobin Luo, Cheng-Yao Chen, Michael Previte
  • Patent number: 7772761
    Abstract: Techniques are described for forming an organic light emitting diode device with improved device efficiency. Materials having at least one energy level that is similar to those of a phosphorescent light emitting material in the diode are incorporated into the device to directly inject holes or electrons to the light emitting material.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: August 10, 2010
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Stelios A. Choulis, Mathew Mathai, Vi-En Choong, Franky So
  • Patent number: 7679282
    Abstract: An organic electroluminescent device, includes: a substrate; a hole-injecting electrode (anode) coated over the substrate; a hole injection layer coated over the anode; a hole transporting layer coated over the hole injection layer; a polymer based light emitting layer, coated over the hole transporting layer; a small molecule based light emitting layer, thermally evaporated over the polymer based light emitting layer; and an electron-injecting electrode (cathode) deposited over the electroluminescent polymer layer.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: March 16, 2010
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Vi-En Choong, Stelios Choulis, Benjamin Claus Krummacher, Mathew Mathai, Franky So
  • Patent number: 7667383
    Abstract: At least one stacked organic or polymeric light emitting diode (PLEDs) devices to comprise a light source is disclosed. At least one of the PLEDs includes a patterned cathode which has regions which transmit light. The patterned cathodes enable light emission from the PLEDs to combine together. The light source may be top or bottom emitting or both.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: February 23, 2010
    Assignee: Osram Opto Semiconductors GmbH
    Inventor: Vi-En Choong
  • Publication number: 20100035268
    Abstract: Provided herein are methods and compositions for real time single molecule sequencing of short nucleotide sequences using nucleotide fluorescent semiconductor nanocrystals-conjugated nucleotide primers.
    Type: Application
    Filed: February 21, 2008
    Publication date: February 11, 2010
    Inventors: Joseph Beechem, Vi-En Choong, Theo Nikiforov
  • Patent number: 7554257
    Abstract: An electroluminescent apparatus includes an OLED device emitting light in the blue and green spectrums, and at least one down conversion layer. The down conversion layer absorbs at least part of the green spectrum light and emits light in at least one of the orange spectra and red spectra.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: June 30, 2009
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Benjamin C. Krummacher, Mathew Mathai, Vi-En Choong, Stelios A. Choulis
  • Patent number: 7550915
    Abstract: In a first embodiment of the present invention, in order to increase the number of holes injected into the emissive layer, an intermixed layer is formed from the intermixing of the hole transport layer (“HTL”) and the emissive layer. The intermixed layer is between the HTL and the emissive layer of the OLED device. Alternatively, in a second embodiment of the present invention, in order to increase the number of holes injected into the emissive layer, a separate interlayer is incorporated within the OLED device. The interlayer is comprised of a hole transport material in which one of its components is at least partially replaced with one of the components of the emissive layer that is responsible for hole injection and transport. The separate interlayer is between the anode and the emissive layer of the OLED device. One or more intermediate layers may be present between the interlayer and the anode such as, for example, a HTL may be present between those two layers.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: June 23, 2009
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Reza Stegamat, Vi-En Choong