Patents by Inventor Douglas S. Dunn

Douglas S. Dunn 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: 12005277
    Abstract: Various embodiments of a respirator that includes a harness, a mask body, and an exhalation valve are disclosed. The exhalation valve can include a valve seat and a flexible flap that is in engagement with the valve seat. The flexible flap can have one or more materials that can cause the flap to flash when moving from a closed position to an open position or vice versa. The flashing valve can make it easier for a user to ascertain whether the valve is operating properly.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: June 11, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Philip G. Martin, Caroline M. Ylitalo, Gina M. Buccellato, James M. Jonza, William W. Merrill, Douglas S. Dunn, David T. Yust
  • Patent number: 12001038
    Abstract: The disclosed patterned wavelength-selective material and process for making the patterned wavelength-selective material uses patterned applied adhesive and a structurally weak wavelength-selective material that includes portions that contact the adhesive and break to remain in contact with the adhesive. In one embodiment, the wavelength-selective material comprises an array of sections with cuts at least partially through a wavelength-selective film at each section secured to the adhesive. In another embodiment, the wavelength-selective film comprises a transfer stack of layers.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: June 4, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Kui Chen-Ho, Douglas S. Dunn, Tien Yi T. H. Whiting, Bryan T. Whiting, Taylor J. Kobe, Anthony F. Schultz, Duane D. Fansler, Jonah Shaver, John A. Wheatley, Susannah C. Clear, Daniel J. Theis, John T. Strand, Thomas J. Metzler, Kevin W. Gotrik, Scott J. Jones
  • Patent number: 11953706
    Abstract: Wavelength-selective films are visibly apparent under the selective wavelength. Wavelength-selective films typically reflect off axis the selected wavelength and therefore can provide high-contrast against a background when applied in a pattern on a substrate. However, it is difficult to apply unique patterned embedded images from film. Disclosed is a cost-effective method and construction of a patterned wavelength-selective image to a substrate. In the disclosed wavelength-selective image, wavelength-selective film particles are applied to an adhesive pattern to create the wavelength-selective image.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: April 9, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kui Chen-Ho, Kenneth L. Smith, Douglas S. Dunn, Tien Yi T. H. Whiting, John A. Wheatley, Bryan T. Whiting, Taylor J. Kobe, Anthony F. Schultz, Duane D. Fansler, Jonah Shaver
  • Publication number: 20230305210
    Abstract: An optical assembly including an optical element insert molded directly onto an optical stack is provided. The optical stack includes an optical film and may include a liner with the optical film being disposed between the optical element and the liner. The liner, if included, is removable from the optical film without substantial damage to the optical film. An outermost layer of the optical film may be diffusion bonded to a major surface of the optical element.
    Type: Application
    Filed: May 16, 2023
    Publication date: September 28, 2023
    Inventors: Gregg A. Ambur, Benjamin G. Sonnek, Jo A. Etter, Timothy L. Wong, Thomas P. Klun, Richard J. Pokorny, Benjamin R. Coonce, Douglas S. Dunn, Henry A. Kostalik, IV, Christopher S. DeGraw, John R. Jacobson, Chunjie Zhang
  • Patent number: 11756402
    Abstract: An infrastructure article includes a signal receiver device configured to receive a wireless signal from a signal emitter device configured at an electrically powered scooter; and a controller configured to determine information, coded in the wireless signal, that is based on an operator proficiency of an operator of the electrically powered scooter; and to perform, based at least in part on the information that indicates the operator proficiency of the operator of the electrically powered scooter, at least one operation.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: September 12, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kristen J. Hansen, Douglas S. Dunn, Jonathan D. Gandrud
  • Patent number: 11709299
    Abstract: An optical assembly including an optical element insert molded directly onto an optical stack is provided. The optical stack includes an optical film and may include a liner with the optical film being disposed between the optical element and the liner. The liner, if included, is removable from the optical film without substantial damage to the optical film. An outermost layer of the optical film may be diffusion bonded to a major surface of the optical element. The optical film includes a protective coating having an average thickness of no more than 30 micrometers. The protective coating includes an at least partially cured composition. The composition includes 70 to 96 weight percent of urethane (meth)acrylate compound having an average (meth)acrylate functionality of 2 to 9.5, and 2 to 20 weight percent of (meth)acrylate monomer having a (meth)acrylate functionality of 1 to 2.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: July 25, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Gregg A. Ambur, Benjamin G. Sonnek, Jo A. Etter, Timothy L. Wong, Thomas P. Klun, Richard J. Pokorny, Benjamin R. Coonce, Douglas S. Dunn, Henry A. Kostalik, IV, Christopher S. DeGraw, John R. Jacobson, Chunjie Zhang, Jung-Sheng Wu
  • Patent number: 11693168
    Abstract: An optical assembly including an optical element insert molded directly onto an optical stack is provided. The optical stack includes an optical film and may include a liner with the optical film being disposed between the optical element and the liner. The liner, if included, is removable from the optical film without substantial damage to the optical film. An outermost layer of the optical film may be diffusion bonded to a major surface of the optical element.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: July 4, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Gregg A. Ambur, Benjamin G. Sonnek, Jo A. Etter, Timothy L. Wong, Thomas P. Klun, Richard J. Pokorny, Benjamin R. Coonce, Douglas S. Dunn, Henry A. Kostalik, IV, Christopher S. Degraw, John R. Jacobson, Chunjie Zhang
  • Publication number: 20220410511
    Abstract: An optical assembly (200) including an encapsulated multilayer optical film (250). Methods of making and using such optical assemblies also are disclosed.
    Type: Application
    Filed: December 1, 2020
    Publication date: December 29, 2022
    Inventors: Gregg A. Ambur, Douglas S. Dunn, Henry A. Kostalik, IV, Christopher S. DeGraw, Thomas P. Klun, Benjamin R. Coonce, Richard J. Pokorny, Chunjie Zhang, Laurent Froissard, Joseph S. Warner
  • Publication number: 20220299630
    Abstract: A radar-optical fusion article for attachment to a substrate is described. The radar-optical fusion article includes a first retroreflective layer which is configured to retroreflect at least a portion of light having a wavelength in a range from about 400 nm to about 2500 nm. The radar-optical fusion article includes a second retroreflective layer disposed adjacent to the first retroreflective layer. The second retroreflective layer is configured to retroreflect at least a portion of an electromagnetic wave having a frequency in the range from about 0.5 GHz to about 100 GHz.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 22, 2022
    Inventors: Kui Chen-Ho, Jonathan D. Gandrud, Mohsen Salehi, Douglas S. Dunn, Jaewon Kim
  • Patent number: 11450140
    Abstract: In some examples, a method includes determining, by a computing device, a plurality of regions of interest of an image for independently processing relative to a plane of interest; determining, by the computing device and for respective regions of interest of the plurality of regions of interest, a distance from objects within the respective regions of interest to the plane of interest; and processing, by the computing device and independently for the respective regions of interest, the respective regions of interest of the image based on the determined distance from the objects to the plane of interest.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: September 20, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Robert W. Shannon, Douglas S. Dunn, Glenn E. Casner, Jonathan D. Gandrud, Shannon D. Scott, Gautam Singh
  • Publication number: 20220223024
    Abstract: An infrastructure article includes a signal receiver device configured to receive a wireless signal from a signal emitter device configured at an electrically powered scooter; and a controller configured to determine information, coded in the wireless signal, that is based on an operator proficiency of an operator of the electrically powered scooter; and to perform, based at least in part on the information that indicates the operator proficiency of the operator of the electrically powered scooter, at least one operation.
    Type: Application
    Filed: May 20, 2020
    Publication date: July 14, 2022
    Inventors: Kristen J. Hansen, Douglas S. Dunn, Jonathan D. Gandrud
  • Publication number: 20220183153
    Abstract: A patterned article includes a unitary polymeric layer and a plurality of electrically conductive elements embedded at least partially in the unitary polymeric layer. Each electrically conductive element includes a conductive seed layer having a top major surface and an opposite bottom major surface in direct contact with the unitary polymeric layer, and includes a metallic body disposed on the top major surface of the conductive seed layer. The metallic body has a bottom major surface and at least one sidewall. The bottom major surface contacts the conductive seed layer. Each sidewall is in direct contact with the unitary polymeric layer and extends from the bottom major surface of the metallic body toward or to, but not past, a top major surface of the unitary polymeric layer. The conductive elements may be electrically isolated from one another. Processes for making the patterned article are described.
    Type: Application
    Filed: May 5, 2020
    Publication date: June 9, 2022
    Inventors: Raymond P. Johnston, John J. Sullivan, Matthew C. Messina, Charles D. Hoyle, Jaewon Kim, Haiyan Zhang, Matthew S. Stay, Robert A. Sainati, Kevin W. Gotrik, Kenneth A.P. Meyer, Gregory L. Abraham, Joseph C. Carls, Douglas S. Dunn
  • Publication number: 20220113457
    Abstract: The disclosed patterned wavelength-selective material and process for making the patterned wavelength-selective material uses patterned applied adhesive and a structurally weak wavelength-selective material that includes portions that contact the adhesive and break to remain in contact with the adhesive. In one embodiment, the wavelength-selective material comprises an array of sections with cuts at least partially through a wavelength-selective film at each section secured to the adhesive. In another embodiment, the wavelength-selective film comprises a transfer stack of layers.
    Type: Application
    Filed: July 23, 2019
    Publication date: April 14, 2022
    Inventors: Kui CHEN-HO, Douglas S. DUNN, Tien Yi T.H. WHITING, Bryan T. WHITING, Taylor J. KOBE, Anthony F. SCHULTZ, Duane D. FANSLER, Jonah SHAVER, John A. WHEATLEY, Susannah C. CLEAR, Daniel J. THEIS, John T. STRAND, Thomas J. METZLER, Kevin W. GOTRIK, Scott J. JONES
  • Publication number: 20210364682
    Abstract: An optical assembly including an optical element insert molded directly onto an optical stack is provided. The optical stack includes an optical film and may include a liner with the optical film being disposed between the optical element and the liner. The liner, if included, is removable from the optical film without substantial damage to the optical film. An outermost layer of the optical film may be diffusion bonded to a major surface of the optical element. The optical film includes a protective coating having an average thickness of no more than 30 micrometers. The protective coating includes an at least partially cured composition. The composition includes 70 to 96 weight percent of urethane (meth)acrylate compound having an average (meth)acrylate functionality of 2 to 9.5, and 2 to 20 weight percent of (meth)acrylate monomer having a (meth)acrylate functionality of 1 to 2.
    Type: Application
    Filed: June 7, 2019
    Publication date: November 25, 2021
    Inventors: Gregg A. Ambur, Benjamin G. Sonnek, Jo A. Etter, Timothy L. Wong, Thomas P. Klun, Richard J. Pokorny, Benjamin R. Coonce, Douglas S. Dunn, Henry A. Kostalik, IV, Christopher S. DeGraw, John R. Jacobson, Chunjie Zhang, Jung-Sheng Wu
  • Patent number: 11179959
    Abstract: A security element, including: a substrate having a first structured major surface and a second structured major surface; and a first metal layer coated on the first structured major surface, wherein the transparency of the first metal layer is between 10% and 90%; and a second metal layer coated on the second structured major surface.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: November 23, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Ta-Hua Yu, William Blake Kolb, Douglas S. Dunn
  • Publication number: 20210325585
    Abstract: The disclosed patterned wavelength-selective material and process for making the patterned wavelength-selective material uses selectively located barriers to the adhesive regions. A structurally weak wavelength-selective material includes portions that contact the adhesive regions and break to remain in contact with the adhesive. The wavelength-selective material does not contact the adhesive regions covered by the barrier and is removed leaving a wavelength-selective film in a pattern at the adhesive regions.
    Type: Application
    Filed: July 19, 2019
    Publication date: October 21, 2021
    Inventors: Kui CHEN-HO, Douglas S. DUNN, Matthew S. STAY, Daniel J. THEIS, John T. STRAND, Shawn C. DODDS, Thomas J. METZLER, Kevin W. GOTRIK, Scott J. JONES
  • Publication number: 20210286111
    Abstract: Wavelength-selective films are visibly apparent under the selective wavelength. Wavelength-selective films typically reflect off axis the selected wavelength and therefore can provide high-contrast against a background when applied in a pattern on a substrate. However, it is difficult to apply unique patterned embedded images from film. Disclosed is a cost-effective method and construction of a patterned wavelength-selective image to a substrate. In the disclosed wavelength-selective image, wavelength-selective film particles are applied to an adhesive pattern to create the wavelength-selective image.
    Type: Application
    Filed: July 23, 2019
    Publication date: September 16, 2021
    Inventors: Kui CHEN-HO, Kenneth L. SMITH, Douglas S. DUNN, Tien Yi T.H. WHITING, John A. WHEATLEY, Bryan T. WHITING, Taylor J. KOBE, Anthony F. SCHULTZ, Duane D. FANSLER, Jonah SHAVER
  • Publication number: 20210232797
    Abstract: In some examples, a method includes determining, by a computing device, a plurality of regions of interest of an image for independently processing relative to a plane of interest; determining, by the computing device and for respective regions of interest of the plurality of regions of interest, a distance from objects within the respective regions of interest to the plane of interest; and processing, by the computing device and independently for the respective regions of interest, the respective regions of interest of the image based on the determined distance from the objects to the plane of interest.
    Type: Application
    Filed: April 15, 2021
    Publication date: July 29, 2021
    Inventors: Robert W. Shannon, Douglas S. Dunn, Glenn E. Casner, Jonathan D. Gandrud, Shannon D. Scott, Gautam Singh
  • Patent number: 11065855
    Abstract: A method of making an infrared-reflecting optically transparent assembly comprises: coating a curable composition onto a major surface of an optically transparent thermoplastic polymer film; at least partially curing the curable composition, which may be optionally at least partially dried, to provide a thermoformable composite film; and laminating the thermoformable composite film to an infrared-reflecting multilayer optical film to provide the infrared-reflecting optically transparent assembly. The curable composition comprises urethane (meth)acrylate compound, (meth)acrylate monomer, and silicone (meth)acrylate. The infrared-reflecting optically transparent assembly and methods of including it in an infrared-reflecting lens assembly are also disclosed.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 20, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas P. Klun, Richard J. Pokorny, Benjamin R. Coonce, Douglas S. Dunn, Gregg A. Ambur, Henry A. Kostalik, IV, John R. Jacobson, Christopher S. DeGraw, Chunjie Zhang
  • Publication number: 20210208320
    Abstract: An optical assembly including an optical element insert molded directly onto an optical stack is provided. The optical stack includes an optical film and may include a liner with the optical film being disposed between the optical element and the liner. The liner, if included, is removable from the optical film without substantial damage to the optical film. An outermost layer of the optical film may be diffusion bonded to a major surface of the optical element.
    Type: Application
    Filed: October 3, 2018
    Publication date: July 8, 2021
    Inventors: Gregg A. Ambur, Benjamin G. Sonnek, Jo A. Etter, Timothy L. Wong, Thomas P. Klun, Richard J. Pokomy, Benjamin R. Coonce, Douglas S. Dunn, Henry A. Kostalik, Christopher S. Degraw, John R. Jacobson, Chunjie Zhang