Patents by Inventor Ryan M. Pearson

Ryan M. Pearson 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: 11879034
    Abstract: The disclosure provides a method of preparing a polymer scaffold including admixing a biotinylated reagent and a polymer to form a biotinylated polymer, subjecting the biotinylated polymer to conditions sufficient to form the polymer scaffold and optionally admixing the polymer scaffold with a streptavidin-modified biomolecule to form a biomolecule-modified polymer scaffold. The disclosure further provides a method of preparing a polymer scaffold including admixing a first click chemistry reagent and a poly(lactic-co-glycolic acid) (PLGA) polymer to form a modified PLGA polymer, subjecting the modified PLGA polymer to conditions sufficient to form the polymer scaffold, and optionally admixing the polymer scaffold with a biomolecule modified to include a second click chemistry reagent that selectively reacts with the first click chemistry reagent, to form a biomolecule-modified polymer scaffold.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: January 23, 2024
    Assignee: REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Lonnie D. Shea, Michael Skoumal, Ryan M. Pearson
  • Publication number: 20230285568
    Abstract: Phospholipid-conjugated Ags were used as an agnostic delivery platform to cell type, activation state, and inherent uptake capabilities for engineering APCs to control Ag-specific cellular immune responses. Lipid-mediated delivery (termed depoting) of MHC class I and II-restricted Ags successfully loaded resting polyclonal B cells, CD40? activated B cells, and DCs in a dose-dependent manner for priming Ag-specific CD8+ and CD4+ T cells, respectively. When lipid-conjugated Ags were paired with polymer-conjugated Ags and incorporated in nanoparticles (NPs), diverse APCs with varying NP internalization capabilities all processed the lipid-conjugated Ags via depoting while only DCs processed the PLGA-conjugated Ags via endocytosis. Multivariate analyses of cytokine secretions indicated that lipid-conjugated Ags could be distinctly classified from polymer-conjugated Ags.
    Type: Application
    Filed: August 5, 2021
    Publication date: September 14, 2023
    Applicant: University of Maryland, Balltimore County
    Inventors: Ryan M. PEARSON, Gregory SZETO, Michael ZHANG
  • Publication number: 20230090784
    Abstract: The disclosure relates to benzo[ghi]perylene imide photoredox catalysts (PC) and methods for the Birch reductions of aromatic substrates, such as benzene, benzeneoid, and heteroaromatic compounds, using light as the driving force. Certain aspects of the disclosure encompass methods for reduction of aromatic substrates. The method comprises contacting an aromatic substrate with a sacrificial electron donor in the presence of a photoredox catalyst in a solvent, thereby forming a reaction mixture; exposing the reaction mixture to visible or UV light under reaction condition sufficient to reduce the aromatic substrate compound.
    Type: Application
    Filed: January 11, 2021
    Publication date: March 23, 2023
    Inventors: Garret M. Miyake, Justin P. Cole, Ryan M. Pearson, Chern-Hooi Lim, Max Kudisch, Dian-Feng Chen
  • Publication number: 20220298368
    Abstract: A system and method for production and implementation of a photonic crystal forming, aqueous solution, may include: a block polymer mixture and at least one solvent, wherein the at least one solvent comprises water. The “color” of the photonic crystal solution may be set either through a single, or multiple, brush block copolymer mixtures (i.e., premixed coloring) or through layering of multiple layers of distinct single, or multiple, brush block copolymer mixtures. The system functions as an aqueous structural color (i.e., a photonic crystal) precursor, wherein applying the water-based color solution to a substrate, functions to provide a desired photonic crystal object arrangement possessing color reflective properties.
    Type: Application
    Filed: March 18, 2022
    Publication date: September 22, 2022
    Inventors: Matthew D. Ryan, Ryan M. Pearson, Alexander Hess, Luke Whitson
  • Publication number: 20220259447
    Abstract: Systems and methods used for or in connection to production and printing of a photonic crystal forming ink solution, which involve use of a block polymer mixture and optionally a solvent, wherein the color of the printed ink solution may be set either through a single or multiple block polymer mixtures (i.e. premixed coloring) or through printing multiple layers of distinct single or multiple block polymer mixtures (i.e. post print coloring). The composition(s) used by the systems and methods function as a structural color (i.e., a photonic crystal) precursor, wherein forming, loading, printing, and optional post-print processing of the ink solution on a substrate, function to provide a desired photonic crystal print object possessing reflective coloration properties.
    Type: Application
    Filed: February 16, 2022
    Publication date: August 18, 2022
    Inventors: Matthew D. Ryan, Ryan M. Pearson, Tri R. Tuladhar, Alexander Hess, Luke Whitson
  • Patent number: 11286340
    Abstract: The present invention provides efficient processes for preparing brush polymers. In general, the process comprises three distinct reaction steps utilizing two separate catalysts. In the first step, the initiating compound comprising norbornene is contacted with a silane in the presence of a catalyst, thereby forming a silated intermediate. This silated intermediate is then contacted with a monomer in the presence of a catalyst via Group Transfer Polymerization (GTP). The resulting compound from GTP is contacted with a ring opening metathesis polymerization (ROMP) catalyst to prepare the brush polymer. Surprisingly, the brush polymers obtained from the above process are accessed in an efficient and rapid GTP methodology as compared to prior methods.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: March 29, 2022
    Assignee: Colorado State University Research Foundation
    Inventors: Garret Miyake, Ryan M. Pearson, Matthew D. Ryan
  • Publication number: 20200239626
    Abstract: The present invention provides efficient processes for preparing brush polymers. In general, the process comprises three distinct reaction steps utilizing two separate catalysts. In the first step, the initiating compound comprising norbornene is contacted with a silane in the presence of a catalyst, thereby forming a silated intermediate. This silated intermediate is then contacted with a monomer in the presence of a catalyst via Group Transfer Polymerization (GTP). The resulting compound from GTP is contacted with a ring opening metathesis polymerization (ROMP) catalyst to prepare the brush polymer. Surprisingly, the brush polymers obtained from the above process are accessed in an efficient and rapid GTP methodology as compared to prior methods.
    Type: Application
    Filed: January 29, 2020
    Publication date: July 30, 2020
    Applicant: Colorado State University Research Foundation
    Inventors: Garret Miyake, Ryan M. Pearson, Matthew D. Ryan
  • Publication number: 20200010611
    Abstract: The disclosure provides a method of preparing a polymer scaffold including admixing a biotinylated reagent and a polymer to form a biotinylated polymer, subjecting the biotinylated polymer to conditions sufficient to form the polymer scaffold and optionally admixing the polymer scaffold with a streptavidin-modified biomolecule to form a biomolecule-modified polymer scaffold. The disclosure further provides a method of preparing a polymer scaffold including admixing a first click chemistry reagent and a poly(lactic-co-glycolic acid) (PLGA) polymer to form a modified PLGA polymer, subjecting the modified PLGA polymer to conditions sufficient to form the polymer scaffold, and optionally admixing the polymer scaffold with a biomolecule modified to include a second click chemistry reagent that selectively reacts with the first click chemistry reagent, to form a biomolecule-modified polymer scaffold.
    Type: Application
    Filed: March 8, 2018
    Publication date: January 9, 2020
    Inventors: Lonnie D. Shea, Michael Skoumal, Ryan M. Pearson