Patents by Inventor David B. RUFFNER

David B. RUFFNER 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: 11747258
    Abstract: Systems and methods for holographic characterization of protein aggregates. Size and refractive index of individual aggregates in a solution can be determined. Information regarding morphology and porosity can be extracted from holographic data.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: September 5, 2023
    Assignee: New York University
    Inventors: David G. Grier, Michael D. Ward, Xiao Zhong, Chen Wang, Laura A. Philips, David B. Ruffner, Fook Chiong Cheong
  • Publication number: 20220326130
    Abstract: Systems and methods for holographic characterization of protein aggregates. Size and refractive index of individual aggregates in a solution can be determined. Information regarding morphology and porosity can be extracted from holographic data.
    Type: Application
    Filed: May 27, 2022
    Publication date: October 13, 2022
    Applicant: NEW YORK UNIVERSITY
    Inventors: David G. Grier, Michael D. WARD, Xiao ZHONG, Chen WANG, Laura A. PHILIPS, David B. RUFFNER, Fook Chiong CHEONG
  • Patent number: 11385157
    Abstract: Systems and methods for holographic characterization of protein aggregates. Size and refractive index of individual aggregates in a solution can be determined. Information regarding morphology and porosity can be extracted from holographic data.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: July 12, 2022
    Assignee: New York University
    Inventors: David G. Grier, Michael D. Ward, Xiao Zhong, Chen Wang, Laura A. Philips, David B. Ruffner, Fook Chiong Cheong
  • Patent number: 11346761
    Abstract: Systems and methods for holographic characterization of protein aggregates. Size and refractive index of individual aggregates in a solution can be determined. Information regarding morphology and porosity can be extracted from holographic data.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: May 31, 2022
    Assignee: New York University
    Inventors: David G. Grier, Michael D. Ward, Xiao Zhong, Chen Wang, Laura A. Philips, David B. Ruffner, Fook Chiong Cheong
  • Publication number: 20210364403
    Abstract: Systems and methods for uniquely identifying fluid-phase products by endowing them with fingerprints composed of dispersed colloidal particles, and by reading out those fingerprints on demand using Total Holographic Characterization. A library of chemically inert colloidal particles is developed that can be dispersed into soft materials, the stoichiometry of the mixture encoding user-specified information, including information about the host material. Encoded information then can be recovered by high-speed analysis of holographic microscopy images of the dispersed particles. Specifically, holograms of individual colloidal spheres are analyzed with predictions of the theory of light scattering to measure each sphere's radius and refractive index, thereby building up the distribution of particle properties one particle at a time. A complete analysis of a colloidal fingerprint requires several thousand single-particle holograms and can be completed in ten minutes.
    Type: Application
    Filed: August 9, 2021
    Publication date: November 25, 2021
    Applicant: NEW YORK UNIVERSITY
    Inventors: David G. Grier, David B. Ruffner, Aaron Yevick, Mark Hannel
  • Patent number: 11085864
    Abstract: Systems and methods for uniquely identifying fluid-phase products by endowing them with fingerprints composed of dispersed colloidal particles, and by reading out those fingerprints on demand using Total Holographic Characterization. A library of chemically inert colloidal particles is developed that can be dispersed into soft materials, the stoichiometry of the mixture encoding user-specified information, including information about the host material. Encoded information then can be recovered by high-speed analysis of holographic microscopy images of the dispersed particles. Specifically, holograms of individual colloidal spheres are analyzed with predictions of the theory of light scattering to measure each sphere's radius and refractive index, thereby building up the distribution of particle properties one particle at a time. A complete analysis of a colloidal fingerprint requires several thousand single-particle holograms and can be completed in ten minutes.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: August 10, 2021
    Assignee: NEW YORK UNIVERSITY
    Inventors: David G. Grier, David B. Ruffner, Aaron Yevick, Mark Hannel
  • Publication number: 20210199551
    Abstract: Systems and methods for holographic characterization of protein aggregates. Size and refractive index of individual aggregates in a solution can be determined. Information regarding morphology and porosity can be extracted from holographic data.
    Type: Application
    Filed: February 7, 2017
    Publication date: July 1, 2021
    Inventors: David G. GRIER, Michael D. WARD, Xiao ZHONG, Chen WANG, Laura A. PHILIPS, David B. RUFFNER, Fook Chiong CHEONG
  • Patent number: 10656065
    Abstract: Systems and methods for uniquely identifying fluid-phase products by endowing them with fingerprints composed of dispersed colloidal particles, and by reading out those fingerprints on demand using Total Holographic Characterization. A library of chemically inert colloidal particles is developed that can be dispersed into soft materials, the stoichiometry of the mixture encoding user-specified information, including information about the host material. Encoded information then can be recovered by high-speed analysis of holographic microscopy images of the dispersed particles. Specifically, holograms of individual colloidal spheres are analyzed with predictions of the theory of light scattering to measure each sphere's radius and refractive index, thereby building up the distribution of particle properties one particle at a time. A complete analysis of a colloidal fingerprint requires several thousand single-particle holograms and can be completed in ten minutes.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: May 19, 2020
    Assignee: NEW YORK UNIVERSITY
    Inventors: David G. Grier, David B. Ruffner, Aaron Yevick, Mark Hannel
  • Patent number: 10641696
    Abstract: Impurities within a sample are detected by use of holographic video microscopy. The sample flows through the microscope and holographic images are generated. The holographic image is analyzed to identify regions associated with large impurities in the sample. The contribution of the particles of the sample to the holographic images is determined and the impurities are characterized.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: May 5, 2020
    Assignee: NEW YORK UNIVERSITY
    Inventors: David B. Ruffner, David G. Grier, Laura Philips
  • Publication number: 20190234853
    Abstract: Holographic microscopy analysis system and methods for determining morphology of a particle in a sample. A bright-field reconstruction image is generated from a recorded hologram from a holographic microscopy system. Morphology of particles imaged by the system may be determined. Hu moments are calculated, either from the hologram or from the bright-field reconstruction, or both, to provide an indication of morphology.
    Type: Application
    Filed: August 24, 2017
    Publication date: August 1, 2019
    Inventors: David B. RUFFNER, Laura PHILIPS, Fook Chiong CHEONG
  • Publication number: 20180252628
    Abstract: Impurities within a sample are detected by use of holographic video microscopy. The sample flows through the microscope and holographic images are generated. The holographic image is analyzed to identify regions associated with large impurities in the sample. The contribution of the particles of the sample to the holographic images is determined and the impurities are characterized.
    Type: Application
    Filed: September 15, 2016
    Publication date: September 6, 2018
    Inventors: David B. RUFFNER, David G. GRIER, Laura PHILIPS
  • Publication number: 20170307497
    Abstract: Systems and methods for uniquely identifying fluid-phase products by endowing them with fingerprints composed of dispersed colloidal particles, and by reading out those fingerprints on demand using Total Holographic Characterization. A library of chemically inert colloidal particles is developed that can be dispersed into soft materials, the stoichiometry of the mixture encoding user-specified information, including information about the host material. Encoded information then can be recovered by high-speed analysis of holographic microscopy images of the dispersed particles. Specifically, holograms of individual colloidal spheres are analyzed with predictions of the theory of light scattering to measure each sphere's radius and refractive index, thereby building up the distribution of particle properties one particle at a time. A complete analysis of a colloidal fingerprint requires several thousand single-particle holograms and can be completed in ten minutes.
    Type: Application
    Filed: November 11, 2015
    Publication date: October 26, 2017
    Inventors: David G. GRIER, David B. RUFFNER, Aaron YEVICK, Mark HANNEL