Patents Assigned to 3M
  • Cartridge, a piston and a syringe comprising the cartridge and the piston
    Patent number: 11642193
    Abstract: A cartridge and a piston for storing and dispensing a two-component dental material. The cartridge and the piston have a cross-section which substantially correspond to a D-shape in which the perimeter of the D-shape is defined by a plurality of circle segments only. At least two of the circle segments are based on different radii. The invention helps maximizing the time period over which a dental material can be stored in the compartment.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: May 9, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Andreas J. Boehm
  • Dental appliance with cosmetic therapeutic aqueous solution
    Patent number: 11642199
    Abstract: A system includes a dental appliance having a polymeric shell with a plurality of cavities for receiving one or more teeth; and a biocompatible cosmetic aqueous liquid in the cavities of the polymeric shell of the dental appliance. The aqueous liquid includes a viscosity modifier chosen from a water compatible polymer, a polysaccharide, a silica compound, and mixtures and combinations thereof, a tooth re-mineralizing agent, and water. The aqueous liquid is substantially free of tooth whitening agents and fluoride, and has a refractive index of greater than 1.3 at room temperature.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: May 9, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: David K. Cinader, Jr., Joel D. Oxman, Yizhong Wang
  • Uniformly expandable air filter
    Patent number: 11642617
    Abstract: The present disclosure relates to air filters. More particularly, it relates to air filters including pleated filter media that can be uniformly expanded and contracted. In some embodiments, the air filters are adjustably sized air filter systems. In some embodiments, the air filters can be used in a window opening.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: May 9, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew R. Fox, Glen O. Gregerson, Bryan L. Gerhardt
  • Neural network-based confidence assessment module for healthcare coding applications
    Patent number: 11645527
    Abstract: A system including a confidence assessment module that implements a neural network to assess the likelihood that codes associated with a patient's encounter with a healthcare organization are accurate. The confidence assessment module may also be incrementally trained.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: May 9, 2023
    Assignee: 3M Innovative Properties Company
    Inventor: Andrew C. Wetta
  • Composition comprising styrene isobutylene block copolymer and ethylenically unsaturated monomer
    Patent number: 11643494
    Abstract: A composition is described comprising a styrene-isobutylene block copolymer; and at least one ethylenically unsaturated monomer. After curing the composition comprises polymerized units of the ethylenically unsaturated monomer. In some embodiments the ethylenically unsaturated groups are selected from (meth)acryl or vinyl ether. The composition is suitable for use as a (e.g. pressure sensitive) adhesive. Articles, methods of making an article, and methods of bonding are also described.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: May 9, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Vasav Sahni, Saswata Chakraborty, Wayne S. Mahoney, Jason D. Clapper, Jacob P. Johnson, Ying Zhang, Albert I. Everaerts, Bryan V. Hunt, Richard B. Ross
  • Spray gun cups, receptacles, lids, and methods of use
    Patent number: 11638924
    Abstract: A spray gun cup receptacle is disclosed comprising an open end for receiving a liner within a cavity and a base end opposite the open end. The sidewall comprises two apertures through which the cavity is visible from outside the spray gun cup receptacle. The two apertures are divided one above the other by a brace member, at least a portion of which is disposed at a brace member angle a relative to the base plane. Also disclosed are improved lids for spray gun cups, and improved connections between the lid(s) and spray gun cup receptacles.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: May 2, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Anna M. Hegdahl, Stephen C. P. Joseph, Sabeel Ullah
  • Hydrogel compositions bonded to polymeric substrates
    Patent number: 11638775
    Abstract: Described herein is a multilayer article comprising: a. a polymer substrate comprising an abstractable atom; and b. a hydrogel coating thereon wherein the hydrogel coating has a water content of at least 10 wt % and is covalently bonded to the polymer substrate, and wherein the hydrogel coating is derived from an aqueous composition having a pH less than 9.5, the aqueous composition comprising: (a) a hydrophilic monomer selected from at least one of (meth)acrylate or (meth)acrylamide; (b) at least 0.1 wt % of a water-swellable clay; (c) a first initiator, wherein the first initiator is water-soluble and is a Type I photoinitiator; and (d) a second initiator, wherein the initiator is water-soluble and is a Type II photoinitiator; and (e) an acid.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: May 2, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Alexi J. Young, Jerald K. Rasmussen
  • Spectrally selective retroreflective system
    Patent number: 11640019
    Abstract: A retroreflective system is disclosed that includes a retroreflective sheet for retroreflecting light, and a light control film disposed on the retroreflective sheet. For a first wavelength, light incident on the light control film at each of a first and second angles of incidence is retroreflected. For a second wavelength, light incident on the light control film at the first, but not the second, angle of incidence is retroreflected.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: May 2, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: John A. Wheatley, Gilles J. Benoit, Guanglei Du, Steven R. Anderson, Owen M. Anderson, David T. Yust, Rolf W. Biernath, Gary E. Gaides, Brian W. Lueck, Neeraj Sharma
  • Fiber tows with a heat-activated sizing
    Patent number: 11639316
    Abstract: Fiber tows including a heat-activatable sizing are described. The sizing compositions have a first modulus at 25° C. of at least 150 megapascals (MPa) and no greater than 400 MPa; and a second modulus of 100,000 pascals (Pa) at a temperature of no greater than 160° C. Methods of preparing articles from such sized fiber tows and the articles comprising such sized fiber tows, including unidirectional and bidirectional constructions are also described.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: May 2, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Aaron R. Beaber, Kari A. McGee, Kimberly C. M. Schultz, Erica M. McCready, Aric W. Ross, Zachary A. Danielson
  • Methods for spore removal comprising a polysorbate surfactant and cationic antimicrobial mixture
    Patent number: 11634666
    Abstract: Disclosed herein are methods for removing spores from skin, the method including dispensing an effective amount of a composition into or onto an article, wherein the composition includes water and from about 0.04 wt % to about 4 wt % polymeric cationic antimicrobial, nonionic antimicrobial or combinations thereof; contacting a skin surface with the composition; mechanically acting on the skin surface for at least one (1) second while the skin surface is in the presence of the composition; and removing at least a portion of the composition from the surface of the skin, wherein removing the composition also removes spores from the skin surface.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: April 25, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Ranjani V. Parthasarathy, Catherine D. Heapy, Tiffany J. Hanson, Brittney K. T. Scott, Jonathan D. M. Helander
  • Fall protection equipment having inductive sensor for connection status and control
    Patent number: 11633633
    Abstract: Techniques are described for monitoring and controlling fall protection equipment. For example, the techniques of this disclosure may be used to monitor the connection status of fall protection equipment, e.g., whether or not the fall protection equipment is connected to a support structure. The techniques described in the disclosure may determine whether the fall protection equipment is connected to a support structure based on changes in a resonant frequency of an electronic circuit of an inductive sensor within the fall protection equipment. The inductive sensor may be formed from sets of one or more coils, where a first set of one or more coils and a second set of one or more coils are wound in opposite directions.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: April 25, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Anthony J. Nowicki, Ronald D. Jesme, Judd D. Perner, Scott E. Brigham, Jeffrey T. Keacher, Mohsen Salehi, Jonathan J. Lepp
  • Fall-protection system with monitoring system
    Patent number: 11633632
    Abstract: A fall-protection system including a harness and a fall-protection apparatus with a lifeline bearing a connector configured to be connected to the harness; and, a fall-protection monitoring system with a base unit and with at least one sensor module configured to sense a condition of the connector and to communicate a signal indicative of the condition of the connector to the base unit.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: April 25, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Lauren K. Carlson, Scott E. Brigham, Christopher W. Coyle, Heidi A. Lopez-Hidalgo, Jonathan J. Lepp, Stephen D. Shaver, Jeffrey T. Keacher
  • Gradient permittivity film
    Patent number: 11637367
    Abstract: A gradient permittivity film comprises (a) a first permittivity layer comprising a first continuous matrix of a first material having a first relative permittivity (?r1) and a second component having a second relative permittivity (?r2) dispersed in the first continuous matrix, the first permittivity layer having a first effective layer relative permittivity (?1) and a thickness (T1); and (b) a second permittivity layer having a second effective layer relative permittivity (?2) and a thickness (T2) disposed on the first permittivity layer T1=0.8(t1) to 1.2(t1), where t1=(I); T2=0.8(t2) to 1.2 (T2), where T2=(II).
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: April 25, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Mohsen Salehi, Stephen J. Etzkorn, Jaewon Kim, Brett J. Sitter
  • Zwitterionic copolymers, coating compositions, articles, and coating methods
    Patent number: 11634525
    Abstract: Zwitterionic copolymers, coating compositions (e.g.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: April 25, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Federica Sgolastra, Semra Colak Atan, George W. Griesgraber, Zachary J. Malmberg
  • Composite cooling film comprising an organic polymeric layer, a UV-absorbing layer, and a reflective metal layer
    Patent number: 11634613
    Abstract: A composite cooling film including non-fluorinated organic polymeric layer, a metal layer disposed inwardly of the non-fluorinated organic polymeric layer, and an antisoiling, ultraviolet-absorbing hardcoat layer that is disposed outwardly of the non-fluorinated organic polymeric layer.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: April 25, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy J. Hebrink, Michelle M. S. Mok, Vivian W. Jones, Milind B. Sabade, James P. Burke, James A. Phipps
  • Abrasive particles, method of making abrasive particles, and abrasive articles
    Patent number: 11634618
    Abstract: Shaped ceramic abrasive particles include a first surface having a perimeter having a perimeter comprising at least first and second edges. A first region of the perimeter includes the second edge and extends inwardly and terminates at two corners defining first and second acute interior angles. The perimeter has at most four corners that define acute interior angles. A second surface is disposed opposite, and not contacting, the first surface. A peripheral surface is disposed between and connects the first and second surfaces. The peripheral surface has a first predetermined shape. Methods of making the shaped ceramic abrasive particles, and abrasive articles including them are also disclosed.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: April 25, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Negus B. Adefris
  • Measurement cycle determination device, measurement cycle determination program and method thereof
    Patent number: 11635390
    Abstract: To suitably determine a measurement cycle at which to measure cracks that occur in structures formed from concrete or the like.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: April 25, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Tasuku Nakayama, Kazuma Nuno
  • Embedded electronic circuit in grinding wheels and methods of embedding
    Patent number: 11628541
    Abstract: A bonded abrasive wheel is disclosed comprising a plurality of abrasive particles disposed in a binder, a first grinding surface, a second surface opposing the first grinding surface, and an outer circumference. The wheel comprises a rotational axis extending through a central hub and a circuit configured as a Radio Frequency Identification (RFID) unit coupled to the abrasive wheel. The circuit comprises an antenna configured to communicate with one or more external devices and comprising a first end and a second end, wherein antenna has a radius of curvature about an axis along at least a portion thereof such that the first end is disposed adjacent to but is spaced from the second end, and an integrated circuit (IC) operably coupled to the antenna and configured to store at least a first data.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: April 18, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Joseph B. Eckel, Nicholas T. Gabriel, Ankit Mahajan, Mikhail L. Pekurovsky, Kara A. Meyers, Thomas J. Metzler, Saagar A. Shah
  • Adhesive backed positioning aids and anchoring assemblies to enhance object mounting experience
    Patent number: 11629748
    Abstract: Wall anchors and positioning aids disclosed herein grant a user the ability to temporary hang or otherwise mount heavyweight objects, while also allowing for adjustment of at least one of the location and orientation of the assembly via the direct manipulation of the object.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: April 18, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Joseph A. Hoffman, Tatiane Dias Marques Faria, Craig D. Thompson, Judd D. Olson, Michele A. Eller, Angela L. Pan, Landon B. Davis, Thaddeus S. Rodda, III, Margaret M. Bonello
  • Headset
    Patent number: D985530
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: May 9, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Morgan S. Lindell, Ulf Claesson, Robert Karlsson, Johan F. Håkansson, Niklas D. B. Emilsson