Patents by Inventor Scott E. Fraser

Scott E. Fraser 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: 20230203541
    Abstract: Described herein are methods and compositions for genomic editing. Endonucleases for genomic editing involve inducing breaks in double stranded DNA, for which knock-ins are notoriously inefficient for relying on random integration of homologous DNA sequences into the break site by repair proteins. To address these issues, described herein are novel recombinant fusion proteins that actively recruit linear DNA inserts in closer proximity to the genomic cleavage site, increasing integration efficiency of large DNA fragments into the genome. Such improvements to genomic editing technology allow one to use lower linear DNA concentrations without sacrificing efficiency and can be further combined with other features, such as fluorescent protein reporting systems.
    Type: Application
    Filed: December 23, 2022
    Publication date: June 29, 2023
    Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Jason Junge, Timothy Hunt, Scott E. Fraser
  • Publication number: 20230193363
    Abstract: Described herein is a method to create dendritic biocompatible polymers from pairs of complementary dendritic nucleic acid monomers in a controlled manner, using polymerization triggers. The dendritic monomers are constituted of nucleic acids and an organic polymer capable of self-assembly. Each polymer contains approximately 200 dendrites that can be used to attach labels and constitute a biologically compatible signal amplification technology. Depending on the context this technology could be used to reveal the presence of a large variety of analytes such as specific nucleic acid molecules, small molecules, proteins, and peptides.
    Type: Application
    Filed: October 17, 2022
    Publication date: June 22, 2023
    Applicant: University of Southern California
    Inventors: Scott E. Fraser, Simon Restrepo, Joseph P. Dunham
  • Publication number: 20230175019
    Abstract: A new DNA knock-in approach is provided based on the usage of three single guide RNA (sgRNA) to increase the integration efficiency of donor DNA based on the CRISRP-Cas system. The approach uses a pair of universal sgRNAs complementary to the donor DNA and a single sgRNA that targets the locus of interest. In various embodiments, targeting is achieved by pre-forming a DNA:RNA:protein (DNA:RNP) complex in vitro and introducing the complex into the embryo or cells of interest either by microinjection or transfection.
    Type: Application
    Filed: May 28, 2021
    Publication date: June 8, 2023
    Applicant: University of Southern California
    Inventors: Scott E. Fraser, Le Trinh
  • Publication number: 20230138764
    Abstract: Systems and methods are provided for increasing photon collection during imaging with a light-sheet fluorescence microscope. In one example, one or more adaptive optical elements may be positioned in a detection light path between a detection objective and an imaging sensor. A depth of field of the detection objective is adjusted as a function of a thickness of an excitation light-sheet used to illuminate a sample during imaging. As a result, the detection objective captures more fluorescence photons generated by light-sheet excitation.
    Type: Application
    Filed: March 12, 2021
    Publication date: May 4, 2023
    Applicant: University of Southern California
    Inventors: Thai Truong, Kevin Keomanee-Dizon, Scott E. Fraser
  • Publication number: 20230092749
    Abstract: Systems and methods are provided for multi-spectral or hyper-spectral fluorescence imaging. In one example, a spectral encoding device may be positioned in a detection light path between a detection objective and an imaging sensor of a microscope. In one example, the spectral encoding device includes a first dichroic mirror having a sine transmittance profile and a second dichroic mirror having a cosine transmittance profile. In addition to collecting transmitted light, reflected light from each dichroic mirror is collected and used for total intensity normalization and image analysis.
    Type: Application
    Filed: March 12, 2021
    Publication date: March 23, 2023
    Applicant: University of Southern California
    Inventors: Francesco Cutrale, Pu Wang, Scott E. Fraser
  • Patent number: 11535871
    Abstract: Described herein are methods and compositions for genomic editing. Endonucleases for genomic editing involve inducing breaks in double stranded DNA, for which knock-ins are notoriously inefficient for relying on random integration of homologous DNA sequences into the break site by repair proteins. To address these issues, described herein are novel recombinant fusion proteins that actively recruit linear DNA inserts in closer proximity to the genomic cleavage site, increasing integration efficiency of large DNA fragments into the genome. Such improvements to genomic editing technology allow one to use lower linear DNA concentrations without sacrificing efficiency and can be further combined with other features, such as fluorescent protein reporting systems.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: December 27, 2022
    Assignee: University of Southern California
    Inventors: Jason Junge, Timothy Hunt, Scott E. Fraser
  • Patent number: 11492657
    Abstract: Described herein is a method to create dendritic biocompatible polymers from pairs of complementary dendritic nucleic acid monomers in a controlled manner, using polymerization triggers. The dendritic monomers are constituted of nucleic acids and an organic polymer capable of self-assembly. Each polymer contains approximately 200 dendrites that can be used to attach labels and constitute a biologically compatible signal amplification technology. Depending on the context this technology could be used to reveal the presence of a large variety of analytes such as specific nucleic acid molecules, small molecules, proteins, and peptides.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: November 8, 2022
    Inventors: Scott E. Fraser, Simon Restrepo, Joseph P. Dunham
  • Patent number: 11397311
    Abstract: Volumetric imaging with selective volume illumination (SVI) using light field detection is provided using various systems and techniques. A volumetric imaging apparatus includes a light source configured to emit an illumination light that propagates via an illumination light path to illuminate a three-dimensional (3D) sample; and an optical system arranged with respect to the light source to receive a light field, which comes from the illuminated 3D sample. The light field propagates via a detection light path, and the light source, the optical system, or both, are configurable to perform SVI, which selects a volume of a 3D-confined illumination of the 3D sample based on the 3D sample to be illuminated and a light field detection (LFD) process to be applied. Further, the volume of the 3D-confined illumination is a selected 3D volume of the 3D sample to be particularly excited by the 3D-confined illumination for imaging.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: July 26, 2022
    Assignee: University of Southern California
    Inventors: Thai V. Truong, Sara Madaan, Daniel B. Holland, Scott E. Fraser
  • Publication number: 20220145387
    Abstract: Described herein is a method to create dendritic biocompatible polymers from pairs of complementary dendritic nucleic acid monomers in a controlled manner, using polymerization triggers. The dendritic monomers are constituted of nucleic acids and an organic polymer capable of self-assembly. A variety of additional improvements are described herein, including processes not requiring snap cooling, “wobble clamp” designs to confer a transitory measure of hairpin stability prior to branch migration, and multiple assemblies of amplifying systems. Depending on the context this technology could be used to reveal the presence of a large variety of analytes such as specific nucleic acid molecules, small molecules, proteins, and peptides.
    Type: Application
    Filed: December 20, 2019
    Publication date: May 12, 2022
    Applicant: University of Southern California
    Inventors: Scott E. Fraser, Simon Restrepo, Joseph P. Dunham
  • Publication number: 20220108430
    Abstract: This invention relates to a hyperspectral imaging system for denoising and/or color unmixing multiple overlapping spectra in a low signal-to-noise regime with a fast analysis time. This system may carry out Hyper-Spectral Phasors (HySP) calculations to effectively analyze hyper-spectral time-lapse data. For example, this system may carry out Hyper-Spectral Phasors (HySP) calculations to effectively analyze five-dimensional (5D) hyper-spectral time-lapse data. Advantages of this imaging system may include: (a) fast computational speed, (b) the ease of phasor analysis, and (c) a denoising algorithm to obtain the minimally-acceptable signal-to-noise ratio (SNR). An unmixed color image of a target may be generated. These images may be used in diagnosis of a health condition, which may enhance a patient's clinical outcome and evolution of the patient's health.
    Type: Application
    Filed: January 31, 2020
    Publication date: April 7, 2022
    Inventors: Wen SHI, Eun Sang KOO, Scott E. FRASER, Francesco CUTRALE
  • Publication number: 20210157115
    Abstract: Volumetric imaging with selective volume illumination (SVI) using light field detection is provided using various systems and techniques. A volumetric imaging apparatus includes a light source configured to emit an illumination light that propagates via an illumination light path to illuminate a three-dimensional (3D) sample; and an optical system arranged with respect to the light source to receive a light field, which comes from the illuminated 3D sample. The light field propagates via a detection light path, and the light source, the optical system, or both, are configurable to perform SVI, which selects a volume of a 3D-confined illumination of the 3D sample based on the 3D sample to be illuminated and a light field detection (LFD) process to be applied. Further, the volume of the 3D-confined illumination is a selected 3D volume of the 3D sample to be particularly excited by the 3D-confined illumination for imaging.
    Type: Application
    Filed: January 4, 2021
    Publication date: May 27, 2021
    Inventors: Thai V. Truong, Sara Madaan, Daniel B. Holland, Scott E. Fraser
  • Patent number: 11002908
    Abstract: Methods for fabricating flexible substrate nanostructured devices are disclosed. The nanostructures comprise nano-pillars and metallic bulbs or nano-apertures. The nanostructures can be functionalized to detect biological entities. The flexible substrates can be rolled into cylindrical tubes for detection of fluidic samples.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: May 11, 2021
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Chieh-feng Chang, Sameer Walavalkar, Scott E. Fraser, Axel Scherer
  • Patent number: 10901193
    Abstract: Volumetric imaging with selective volume illumination (SVI) using light field detection is provided using various systems and techniques. A volumetric imaging apparatus includes a light source configured to emit an illumination light that propagates via an illumination light path to illuminate a three-dimensional (3D) sample; and an optical system arranged with respect to the light source to receive a light field, which comes from the illuminated 3D sample. The light field propagates via a detection light path, and the light source, the optical system, or both; are configurable to perform SVI, which selects a volume of a 3D-confined illumination of the 3D sample based on the 3D sample to be illuminated and a light field detection (LFD) process to be applied. Further, the volume of the 3D-confined illumination is a selected 3D volume of the 3D sample to be particularly excited by the 3D-confined illumination for imaging.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: January 26, 2021
    Assignee: University of Southern California
    Inventors: Thai V. Truong, Sara Madaan, Daniel B. Holland, Scott E. Fraser
  • Patent number: 10891730
    Abstract: Implementations of the present disclosure include methods, systems, and computer-readable storage mediums for image reconstruction. Actions include receiving an image acquired by an endoscopic system including an optical fiber bundle with multiple optical fibers, each optical fiber being surrounded by cladding, determining in the image fiber core locations corresponding to the optical fibers, reconstructing missing information from the image using interpolation performed in accordance with the fiber core locations, the missing information corresponding to artifacts in the acquired image that result from the cladding, and providing a fiber-pattern removed image, in which the artifacts in the acquired image are removed using the missing information.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: January 12, 2021
    Assignee: University of Southern California
    Inventors: Pu Wang, Francesco Cutrale, Scott E. Fraser
  • Publication number: 20200402211
    Abstract: Implementations of the present disclosure include methods, systems, and computer-readable storage mediums for image reconstruction. Actions include receiving an image acquired by an endoscopic system including an optical fiber bundle with multiple optical fibers, each optical fiber being surrounded by cladding, determining in the image fiber core locations corresponding to the optical fibers, reconstructing missing information from the image using interpolation performed in accordance with the fiber core locations, the missing information corresponding to artifacts in the acquired image that result from the cladding, and providing a fiber-pattern removed image, in which the artifacts in the acquired image are removed using the missing information.
    Type: Application
    Filed: November 30, 2018
    Publication date: December 24, 2020
    Inventors: Pu Wang, Francesco Cutrale, Scott E. Fraser
  • Patent number: 10856735
    Abstract: This disclosure relates to the field of Optical Coherence Tomography (OCT). This disclosure particularly relates to an OCT system that generates an image with improved quality. In one example, the OCT system may generate an improved Bscan image by using multiple shaping functions to shape the raw A-scans. In another example, the OCT system may generate the improved B-scan image by forming multiple apodization patterns on a detector and acquiring raw A-scans by using the apodization patterns. A better diagnosis of a health condition may be reached by using the improved images generated by the OCT system of this disclosure.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: December 8, 2020
    Assignee: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Yu Chen, Scott E. Fraser
  • Patent number: 10803558
    Abstract: This invention relates to a hyperspectral imaging system for denoising and/or color unmixing multiple overlapping spectra in a low signal-to-noise regime with a fast analysis time. This system may be configured to carry out Hyper-Spectral Phasors (HySP) calculations to effectively analyze hyper-spectral time-lapse data. For example, this system may be configured to carry out Hyper-Spectral Phasors (HySP) calculations to effectively analyze five-dimensional (5D) hyper-spectral time-lapse data. Advantages of this imaging system may include: (a) fast computational speed, (b) the ease of phasor analysis, and (c) a denoising algorithm to obtain the minimally-acceptable signal-to-noise ratio (SNR). An unmixed color image of a target may be generated. These images may be used in diagnosis of a health condition, which may enhance a patient's clinical outcome and evolution of the patient's health.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: October 13, 2020
    Assignee: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventors: Francesco Cutrale, Scott E. Fraser
  • Publication number: 20200140921
    Abstract: Described herein is a method to create dendritic biocompatible polymers from pairs of complementary dendritic nucleic acid monomers in a controlled manner, using polymerization triggers. The dendritic monomers are constituted of nucleic acids and an organic polymer capable of self-assembly. Each polymer contains approximately 200 dendrites that can be used to attach labels and constitute a biologically compatible signal amplification technology. Depending on the context this technology could be used to reveal the presence of a large variety of analytes such as specific nucleic acid molecules, small molecules, proteins, and peptides.
    Type: Application
    Filed: February 28, 2018
    Publication date: May 7, 2020
    Applicant: University of Southern California
    Inventors: Scott E. Fraser, Simon Restrepo, Joseph P. Dunham
  • Patent number: 10551635
    Abstract: A sclera or contact lens with an image of an eye that is fenestrated, or uniformly speckled with many sub-millimeter sized transparent regions or holes, is disclosed. The micro fenestrated contact lens can be worn on a strabismic, or misaligned, eye so that its image is aligned with the wearer's dominant eye. The fenestrations allow the wearer to see through the opaque or translucent image printed on the contact lens, thus allowing binocular vision even though his or her strabismic eye is covered.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: February 4, 2020
    Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Daniel M. Schwartz, Scott E. Fraser, Morteza Gharib, Sean A. Mendoza, Kevin A. Mendoza, Nicholas T. Rinella
  • Publication number: 20190380574
    Abstract: This disclosure relates to the field of Optical Coherence Tomography (OCT). This disclosure particularly relates to an OCT system that generates an image with improved quality. In one example, the OCT system may generate an improved Bscan image by using multiple shaping functions to shape the raw A-scans. In another example, the OCT system may generate the improved B-scan image by forming multiple apodization patterns on a detector and acquiring raw A-scans by using the apodization patterns. A better diagnosis of a health condition may be reached by using the improved images generated by the OCT system of this disclosure.
    Type: Application
    Filed: November 27, 2017
    Publication date: December 19, 2019
    Inventors: Yu CHEN, Scott E. FRASER