Patents by Inventor Timothy F. Scott

Timothy F. Scott 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: 20220106417
    Abstract: Provided herein is technology relating to polymerization and producing polymers and particularly, but not exclusively, to methods, systems, and compositions for producing articles using three-dimensional printing and for improving control of polymerization using a polymerization photoinhibitor having fast back reaction kinetics such as hexaarylbiimidazole compounds and bridged hexaarylbiimidazole compounds.
    Type: Application
    Filed: October 13, 2021
    Publication date: April 7, 2022
    Inventors: Timothy F. Scott, Harry van der Laan, Megan A. Cole, Mark A. Burns, Martin P. De Beer, Zachary D. Pritchard, Avi Bregman
  • Patent number: 11192667
    Abstract: Various embodiments provide multi-layered self-healing materials, capable of repairing puncture damage. The multi-layered self-healing materials, capable of repairing puncture damage of the various embodiments may be constructed by sandwiching a reactive (e.g., oxygen sensitive) liquid monomer formulation between two solid polymer panels, such as a polymer panel of Barex 210 IN (PBG) serving as the front layer panel and a polymer panel of Surlyn® 8940 serving as the back layer panel. The various embodiments may provide methods to produce multi-layered healing polymer systems. The various embodiments may provide a two-tier, self-healing material system that provides a non-intrusive capability to mitigate mid to high velocity impact damage in structures.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: December 7, 2021
    Assignee: United States of America as represented by the Administrator of NASA
    Inventors: Keith L. Gordon, Scott R. Zavada, Timothy F. Scott
  • Patent number: 11174326
    Abstract: Provided herein is technology relating to polymerization and producing polymers and particularly, but not exclusively, to methods, systems, and compositions for producing articles using three-dimensional printing and for improving control of polymerization using a polymerization photoinhibitor having fast back reaction kinetics such as hexaarylbiimidazole compounds and bridged hexaarylbiimidazole compounds.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: November 16, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Timothy F. Scott, Harry van der Laan, Megan A. Cole, Mark A. Burns, Martin P. De Beer, Zachary D. Pritchard, Avi Bregman
  • Publication number: 20210115167
    Abstract: Provided herein is technology relating to polymerization and producing polymers and particularly, but not exclusively, to methods, systems, and compositions for producing articles using three-dimensional printing and for improving control of polymerization using a polymerization photoinhibitor having fast back reaction kinetics such as hexaarylbiimidazole compounds and bridged hexaarylbiimidazole compounds.
    Type: Application
    Filed: February 19, 2019
    Publication date: April 22, 2021
    Inventors: Timothy F. Scott, Harry van der Laan, Megan A. Cole, Mark A. Burns, Martin P. De Beer, Zachary D. Pritchard, Avi Bregman
  • Patent number: 10130560
    Abstract: Provided herein are composite materials comprising a thiol-ene polymer resin in a continuous phase and a filler in a discontinuous phase, the filler comprising fluorapatite crystals and silica. Further provided are methods of using these composite materials as restoratives in dental applications. This dental composite is labeled as “smart” because, when the shrinkage stress of the composite is greater than a programmable or pre-selected threshold level, it will elicit visual clues for the dentist.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: November 20, 2018
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Brian H. Clarkson, Timothy F. Scott
  • Publication number: 20170172854
    Abstract: Provided herein are composite materials comprising a thiol-ene polymer resin in a continuous phase and a filler in a discontinuous phase, the filler comprising fluorapatite crystals and silica. Further provided are methods of using these composite materials as restoratives in dental applications. This dental composite is labeled as “smart” because, when the shrinkage stress of the composite is greater than a programmable or pre-selected threshold level, it will elicit visual clues for the dentist.
    Type: Application
    Filed: March 20, 2015
    Publication date: June 22, 2017
    Inventors: Brian H. Clarkson, Timothy F. Scott
  • Publication number: 20160167811
    Abstract: Various embodiments provide multi-layered self-healing materials, capable of repairing puncture damage. The multi-layered self-healing materials, capable of repairing puncture damage of the various embodiments may be constructed by sandwiching a reactive (e.g., oxygen sensitive) liquid monomer formulation between two solid polymer panels, such as a polymer panel of Barex 210 IN (PBG) serving as the front layer panel and a polymer panel of Surlyn® 8940 serving as the back layer panel. The various embodiments may provide methods to produce multi-layered healing polymer systems. The various embodiments may provide a two-tier, self-healing material system that provides a non-intrusive capability to mitigate mid to high velocity impact damage in structures.
    Type: Application
    Filed: December 15, 2015
    Publication date: June 16, 2016
    Inventors: Keith L. Gordon, Scott R. Zavada, Timothy F. Scott
  • Patent number: 8697346
    Abstract: Methods, devices, systems, and materials are disclosed for diffraction unlimited photofabrication. A method is provided where a photoresponsive material is illuminated with a first optical pattern at a first wavelength of light. The first wavelength of light alters a solubility of the photoresponsive organic material. The photoresponsive material is also illuminated with a second optical pattern at a second wavelength of light. The second wavelength of light hinders the ability of the first wavelength of light to alter the solubility of the photoresponsive organic material where the second optical pattern overlaps the first optical pattern. The photoresponsive organic material is then developed.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: April 15, 2014
    Assignee: The Regents of the University of Colorado
    Inventors: Robert R. McLeod, Christopher N. Bowman, Timothy F. Scott, Amy C. Sulivan
  • Patent number: 8404758
    Abstract: The invention provides methods for inducing reversible chain cleavage of polymer chains in a crosslinked polymeric material. Reversible cleavage of the polymer backbone is capable of relieving stress in the polymeric material as the bonds reform in a less stressed state. The invention also provides methods for making polymeric materials capable of reversible chain cleavage, materials made by the methods of the invention, and linear monomers containing reversible chain cleavage groups which are useful in the materials and methods of the invention.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: March 26, 2013
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventors: Christopher N. Bowman, Timothy F. Scott
  • Publication number: 20120092632
    Abstract: Methods, devices, systems, and materials are disclosed for diffraction unlimited photofabrication. A method is provided where a photoresponsive material is illuminated with a first optical pattern at a first wavelength of light. The first wavelength of light alters a solubility of the photoresponsive organic material. The photoresponsive material is also illuminated with a second optical pattern at a second wavelength of light. The second wavelength of light hinders the ability of the first wavelength of light to alter the solubility of the photoresponsive organic material where the second optical pattern overlaps the first optical pattern. The photoresponsive organic material is then developed.
    Type: Application
    Filed: April 1, 2011
    Publication date: April 19, 2012
    Applicant: The Regents of the University of Colorado, a body corporate
    Inventors: Robert R. McLeod, Christopher N. Bowman, Timothy F. Scott, Amy C. Sullivan
  • Publication number: 20120016052
    Abstract: The invention provides methods for inducing reversible chain cleavage of polymer chains in a crosslinked polymeric material. Reversible cleavage of the polymer backbone is capable of relieving stress in the polymeric material as the bonds reform in a less stressed state. The invention also provides methods for making polymeric materials capable of reversible chain cleavage, materials made by the methods of the invention, and linear monomers containing reversible chain cleavage groups which are useful in the materials and methods of the invention.
    Type: Application
    Filed: May 17, 2011
    Publication date: January 19, 2012
    Applicant: The Regents of the University of Colorado, a body corporate
    Inventors: Christopher N. Bowman, Timothy F. Scott
  • Patent number: 7943680
    Abstract: The invention provides methods for inducing reversible chain cleavage of polymer chains in a crosslinked polymeric material. Reversible cleavage of the polymer backbone is capable of relieving stress in the polymeric material as the bonds reform in a less stressed state. The invention also provides methods for making polymeric materials capable of reversible chain cleavage, materials made by the methods of the invention, and linear monomers containing reversible chain cleavage groups which are useful in the materials and methods of the invention.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: May 17, 2011
    Assignee: The Regents of the University of Colorado
    Inventors: Christopher N. Bowman, Timothy F. Scott
  • Publication number: 20080269460
    Abstract: The invention provides methods for inducing reversible chain cleavage of polymer chains in a crosslinked polymeric material. Reversible cleavage of the polymer backbone is capable of relieving stress in the polymeric material as the bonds reform in a less stressed state. The invention also provides methods for making polymeric materials capable of reversible chain cleavage, materials made by the methods of the invention, and linear monomers containing reversible chain cleavage groups which are useful in the materials and methods of the invention.
    Type: Application
    Filed: February 10, 2006
    Publication date: October 30, 2008
    Inventors: Christopher N. Bowman, Timothy F. Scott
  • Patent number: 4036722
    Abstract: There is disclosed a flow through cell assembly that is particularly useful for housing of the sensing cathode of a dissolved oxygen cell. The flow through cell assembly supports the cathode of the dissolved oxygen cell adjacent the upper surface of a through passageway receiving flow of the liquid under investigation and includes a transversely positioned second probe that substantially blocks flow through the through passageway and provides an orifice area of restricted dimensions immediately beneath the dissolved oxygen probe. The dissolved oxygen probe is positioned substantially coplanar with the upper surface of the through passageway to avoid the formation of any air or gas pockets in the flow passageway which could cause erroneous indications on the dissolved oxygen probe. This also allows a high flow velocity across the sensor tip which permits lower volumetric flow rates and a proportionally greater sensitivity of continuous respirometer instrument utilizing the flow through cell assemblies.
    Type: Grant
    Filed: August 21, 1975
    Date of Patent: July 19, 1977
    Assignee: Robertshaw Controls Company
    Inventors: Gordon R. Brushwyler, Timothy F. Scott
  • Patent number: 4018661
    Abstract: There is disclosed an instrument probe assembly that is suited for the measurement of a variable of a flowing liquid stream which contains suspension of debris and foreign matter. The instrument probe assembly includes a housing having a closed end for immersion in the liquid with a concavity in the closed lower end having sidewalls inclined at an acute angle to the longitudinal axis of the housing and at least one through opening in a sidewall of the concavity to receive at least one probe member which is sensitive to a variable of the liquid with its exposed surface generally continuous with the sidewall. The probe member assembly is employed with a pH meter that includes a sensing electrode in the concavity with the reference electrode mounted within an annular chamber of the housing and having the reference electrolyte in contact with the liquid through a porous disk which is mounted in the through opening in the sidewall of the concavity.
    Type: Grant
    Filed: September 4, 1975
    Date of Patent: April 19, 1977
    Assignee: Robertshaw Controls Company
    Inventors: Gordon R. Brushwyler, Timothy F. Scott
  • Patent number: 3997419
    Abstract: An electrochemical device for sensing the concentration of dissolved oxygen in aqueous liquids is described. The device has a housing with a projecting boss that supports an assembly of the cell cathode and a permeable membrane with a removable retainer means overlying peripheral edges of the membrane and with compressive sealing means to permit facile replacement of the membrane and/or cathode. The cell anode is of expanded form in the shape of a coiled metal wire wrapped about a plurality of spaced posts within the cell chamber. Internally of the chamber is a tubular means which projects above the cathode in juxtaposition to the expanded form anode to provide a well about the cathode which is thereby shielded from accumulation of any precipitate that may form in the electrolyte in the proximity of the anode surfaces.
    Type: Grant
    Filed: June 9, 1975
    Date of Patent: December 14, 1976
    Assignee: Robertshaw Controls Company
    Inventors: Timothy F. Scott, Gordon R. Brushwyler
  • Patent number: 3986932
    Abstract: Aerobic fermentation processes which involve mixing an aqueous microbial food medium with a microbial culture are controlled by continuously withdrawing a sample of the microorganism culture and a sample of a mixture of the aqueous food medium and the microorganism culture, directly and continuously measuring a respiration rate of both samples and proportionating the amount of the microorganism culture admixed with the food medium in response to the respiration rate measured to maintain a ratio of the biochemical oxygen demand of the food medium to that of the microorganism culture at a preselected constant value. This control process is preferably used when decomposing wastes such as sewage by aerobic microbial fermentation.
    Type: Grant
    Filed: March 21, 1975
    Date of Patent: October 19, 1976
    Assignee: Robertshaw Controls Company
    Inventors: Gordon R. Brushwyler, Timothy F. Scott