Patents by Inventor Dennis A. Dougherty

Dennis A. Dougherty 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: 11702546
    Abstract: This current disclosure is directed to charge-transfer heptamethine dyes for NIR singlet oxygen generation, each such dye comprising a near-infrared (NIR) absorbing dye having heptamethine linkages orthogonally coupled to an optionally substituted cationic heteroaryl ring moiety as a charge-transfer partner and uses thereof.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: July 18, 2023
    Assignee: California Institute of Technology
    Inventors: John B. Jarman, Dennis A. Dougherty
  • Publication number: 20200129620
    Abstract: This current disclosure is directed to compositions based on certain heptamethine dyes useful for generating singlet oxygen using NIR radiation, optionally comprising additives and solvents that enhance the performance of these dyes, and procedures using these compositions to modify treat myopia and other ocular conditions. In some cases, the methods use near-infrared irradiation to improve the mechanical strength of the sclera.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Inventors: John B. Jarman, Dennis A. Dougherty, Robert H. Grubbs, Christopher B. Marotta, Daniel M. Schwartz
  • Publication number: 20200131370
    Abstract: This current disclosure is directed to charge-transfer heptamethine dyes for NIR singlet oxygen generation, each such dye comprising a near-infrared (NIR) absorbing dye having heptamethine linkages orthogonally coupled to an optionally substituted cationic heteroaryl ring moiety as a charge-transfer partner and uses thereof.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Inventors: John B. Jarman, Dennis A. Dougherty
  • Patent number: 10406227
    Abstract: Methods and compositions modulate the activity of electrically excitable cells. Photovoltaic compounds which, upon exposure to light energy, increase or decrease the electrical activity of cells. These supplement and/or replace of vision based on the conversion of light energy to electrical energy within certain cells of the visual system. A “patch” or bridge to circumvent one or more defective, damaged, or diseased cells in the visual system. Additionally, in several embodiments, subjects with normal vision can benefit from the methods, compositions, systems, and/or devices disclosed herein as normal visual acuity can be heightened. The exposure induces an energy (e.g., a receipt of light energy, conversion to electrical energy, and passage of that electrical energy) from the photovoltaic compound to the cell, thereby altering the transmembrane potential of the cell and/or the opening of one or more ion channels, thereby modulating the activity of the electrically excitable cell.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: September 10, 2019
    Assignees: California Institute of Technology, University of Southern California
    Inventors: Robert H. Chow, Mark S. Humayun, Harry B. Gray, Robert H. Grubbs, Dennis A. Dougherty, Mark E. Thompson, Lionel E. Cheruzel, Melanie A. Yen
  • Patent number: 10232043
    Abstract: Disclosed herein are methods and compositions for the modulation of the activity of electrically excitable cells. In particular, several embodiments relate to the use of photovoltaic compounds which, upon exposure to light energy, increase or decrease the electrical activity of cells.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: March 19, 2019
    Assignees: California Institute of Technology, University of Southern California
    Inventors: Melanie A. Yen, Dennis A. Dougherty, Robert H. Grubbs, Harry B. Gray, Robert H. Chow, Mark S. Humayun, Mark E. Thompson, Lionel E. Cheruzel
  • Publication number: 20170189530
    Abstract: Disclosed herein are methods and compositions for the modulation of the activity of electrically excitable cells. In particular, several embodiments relate to the use of photovoltaic compounds which, upon exposure to light energy, increase or decrease the electrical activity of cells.
    Type: Application
    Filed: August 18, 2016
    Publication date: July 6, 2017
    Inventors: Melanie A. Yen, Dennis A. Dougherty, Robert H. Grubbs, Harry B. Gray, Robert H. Chow, Mark S. Humayun, Mark Thompson, Oliver Shafaat, Erin Lamb
  • Patent number: 9636656
    Abstract: Methods are described and related devices, compositions, and systems, in which a caged compound is administered to a biological environment, the caged compound being caged with a long wavelength absorber, the long wavelength being a wavelength greater than or equal to 750 nm; and irradiating the biological environment to excite the long wavelength absorber with light at a wavelength in a range from 900-1100 nm, thus decaging the compound.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: May 2, 2017
    Assignees: CALIFORNIA INSTITUTE OF TECHNOLOGY, University of Southern California
    Inventors: Dennis A. Dougherty, Robert H. Grubbs, Mark Humayun, Clinton J. Regan, Azita Emami
  • Patent number: 9518034
    Abstract: This invention provides enantioenriched heterocyclic enaminone compounds with quaternary stereogenic centers and novel methods of preparing the compounds. Methods include the method for the preparation of a compound of formula (I): comprising treating a compound of formula (II): with a transition metal catalyst under alkylation conditions.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: December 13, 2016
    Assignee: California Institute of Technology
    Inventors: Brian M. Stoltz, Dennis A. Dougherty, Douglas Duquette, Noah Duffy
  • Publication number: 20150105552
    Abstract: This invention provides enantioenriched heterocyclic enaminone compounds with quaternary stereogenic centers and novel methods of preparing the compounds. Methods include the method for the preparation of a compound of formula (I): comprising treating a compound of formula (II): with a transition metal catalyst under alkylation conditions.
    Type: Application
    Filed: October 14, 2014
    Publication date: April 16, 2015
    Inventors: Brian M. Stoltz, Dennis A. Dougherty, Douglas Duquette, Noah Duffy
  • Publication number: 20140311890
    Abstract: A photoacid compound having a light absorbing moiety attaching a payload moiety through a linker, in which the linker comprises a geminal dialkyl linked to a carbonyl group attaching the payload moiety, and the linker is configured to present the carbonyl oxygen for reaction with a hydroxyl group presented on the light absorbing moiety in ortho position to the linker.
    Type: Application
    Filed: December 7, 2012
    Publication date: October 23, 2014
    Inventors: Dennis A. Dougherty, Robert H. Grubbs, Clinton J. Regan
  • Publication number: 20140308208
    Abstract: Methods are described and related devices, compositions, and systems, in which a caged compound is administered to a biological environment, the caged compound being caged with a long wavelength absorber, the long wavelength being a wavelength greater than or equal to 750 nm; and irradiating the biological environment to excite the long wavelength absorber with light at a wavelength in a range from 900-1100 nm, thus decaging the compound.
    Type: Application
    Filed: December 7, 2012
    Publication date: October 16, 2014
    Inventors: Dennis A. Dougherty, Robert H. Grubbs, Mark Humayun, Clinton J. Regan, Azita Emami-Neyestanak
  • Publication number: 20040259256
    Abstract: The present invention discloses a general method for the efficient delivery of suppressor tRNA and mRNA or DNA encoding a protein of interest to mammalian cells. The method of electroporation described herein is useful for expanding nonsense suppression methodology to mammalian cell expression systems for the incorporation of unnatural amino acids.
    Type: Application
    Filed: March 19, 2004
    Publication date: December 23, 2004
    Applicant: Neurion Pharmaceuticals
    Inventors: Sarah Monahan, Dennis A. Dougherty, Henry A. Lester
  • Publication number: 20040180401
    Abstract: The present invention discloses methods of determining highly precise interactions between the HERG ion channel and various compounds. The methods of the present invention utilize the nonsense codon suppression methods combined with heterologous in vivo expression in Xenopus oocytes.
    Type: Application
    Filed: May 23, 2003
    Publication date: September 16, 2004
    Applicant: Neurion Pharmaceuticals, Inc.
    Inventors: Dennis A. Dougherty, Henry A. Lester, Jonathan G. Lasch
  • Patent number: 5026783
    Abstract: A precursor route to the synthesis of polyacetylene and other conductive polymers is provided by the formation of high energy polymers by ring opening metathesis polymerization. In particular, the high energy polymers having the following general formula are formed from monomers as shown: ##STR1## In the formula, A is an organic structure that is relieved of strain upon the ring opening polymerization and B is an organic structure with strain energy.gtoreq.20 kcal/mole. Such high energy polymers are also found to be spontaneously decomposable with heat or mechanical stress. Consequently, the high energy polymers formed in accordance with the invention may find use in explosives or other sources of high energy.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: June 25, 1991
    Assignee: California Institute of Technology
    Inventors: Robert H. Grubbs, Dennis A. Dougherty, Timothy M. Swager, Eric J. Ginsburg