Patents Assigned to 3M
  • Patent number: 11801126
    Abstract: In some examples, a tool for forming a dental restoration comprises a preformed mold body configured to provide a patient-specific, customized fit with at least one tooth to be restored of a patient. The mold body is configured to align with a portion of a surface of the at least one tooth, and is configured to combine with the at least one tooth to define a mold cavity encompassing at least a portion of desired tooth structure of the at least one tooth to be restored of the patient. The portion of desired tooth structure defines a transition from a supragingival surface of the at least one tooth to a subgingival surface of the at least one tooth.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: October 31, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: James D. Hansen, Katelyn M. Languell, Joseph C. Dingeldein, Lois F. Duerst
  • Patent number: 11802221
    Abstract: An electrically conductive adhesive layer includes an adhesive material; a plurality of electrically conductive dendritic first particles dispersed in the adhesive material and having a cumulative 50% particle diameter D50 in a range from about 20 micrometers to about 40 micrometers; and a plurality of electrically conductive substantially planar second particles dispersed in the adhesive material and having a cumulative 50% particle diameter D50 in a range from about 40 micrometers to about 70 micrometers. The adhesive layer has an average thickness in a range from about 15 micrometers to about 35 micrometers, an electrical resistance in a thickness direction of less than about 30 milliohms, and a peel strength of at least 0.1 N/mm from a stainless steel surface after a dwell time of about 20 minutes at 22° C.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: October 31, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jing Fang, Dong Yang, Jeffrey W. McCutcheon
  • Patent number: 11802081
    Abstract: A plurality of granules comprising ceramic particles bound together with an inorganic binder, the inorganic binder comprising reaction product of at least alkali silicate and hardener, wherein the ceramic particles are present as at least 50 percent by weight of each granule, based on the total weight of the respective granule, wherein each granule has a total porosity in a range from greater than 0 to 50 percent by volume, based on the total volume of the respective granule, and wherein the granule has a minimum Total Solar Reflectance of at least 0.7. The granules are useful, for example, as roofing granules.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: October 31, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Taisiya Skorina, Anatoly Z. Rosenflanz, Jean A. Tangeman, Kenton D. Budd
  • Patent number: 11801231
    Abstract: Compositions that include from 0.1 wt-% to 8 wt-% of one or more compounds of formula (I) based on the total weight of the composition HOCH2—(CHOH)n—CH2NR1R2??(I) wherein R1 and R2 are independently selected from the group consisting of a hydrogen atom, an alkyl group, C(O)R3, and SO2R4; with R3 and R4 being independently selected from the group consisting of an alkyl group, an aryl group, and an aralkyl group; wherein n is an integer from about 2 to about 5; from 5 wt-% to 95 wt-% of one or more plant based oils based on the total weight of the composition; from 5 wt-% to 80 wt-% water based on the total weight of the composition and from 0.01 wt-% to 1 wt-% of one or more nonionic aromatic phenolic preservatives based on the total weight of the composition wherein the composition has a pH from 4.5 to 9.5, the composition is an emulsion, and the composition is edible.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 31, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Katie F. Wlaschin, Amanda C. Engler, Hannah C. Cohen, Yizhong Wang, Tao Gong, Tiffany T. Ton, Joel D. Oxman, Jie Yang
  • Patent number: 11802792
    Abstract: A technique of determining the presence of a species in a sample may include passing light through an optical filter. In an example, the optical filter may include a spatially variant microreplicated layer optically coupled to a wavelength selective filter. The wavelength selective filter may have a light incidence angle-dependent optical band. The spatially variant microreplicated layer may be configured to transmit light to a first optical region of the wavelength selective filter at a first predetermined incidence angle and to a second optical region of the wavelength selective filter at a second predetermined incidence angle.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: October 31, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: John A Wheatley, Gilles J. Benoit, Guanglei Du, Rolf W. Biernath, Sara Suzanne Merritt, James Hillis, Owen M. Anderson, Timothy J. Nevitt
  • Patent number: 11793731
    Abstract: Disclosed herein are non-aqueous compositions including: a flowable Part A including at least one resin and Reactant A; and a flowable Part B including at least one resin and Reactant B; wherein at least one of flowable Part A and flowable Part B further includes a free radically polymerizable resin; wherein at least one of flowable Part A and flowable Part B further includes a free radical initiator system; wherein flowable Part A and flowable Part B are capable of being mixed to provide a flowable mixed composition; wherein when flowable Part A and flowable Part B are mixed, Reactant A and Reactant B are capable of interacting to cause a non-free radical reaction within a first staging time to provide a first staged stable consistency for the mixed composition; wherein Reactant A comprises an acid and Reactant B comprises a base, and upon mixing flowable Part A and flowable Part B, the Reactant A acid is capable of reacting with the Reactant B base in an ionic acid-base reaction; and wherein the mixed compo
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 24, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Gregory A. Kobussen, Ahmed S. Abuelyaman, Paul J. Homnick, Bradley D. Craig, Ying Lin, Hassan Sahouani, Chuntao Cao, William H. Moser, Kolby L. White, Joseph D. Rule, Joachim Zech
  • Patent number: 11794307
    Abstract: Various embodiments disclosed relate to an abrasive article. The abrasive article includes a nonwoven web. The non-woven web includes a first irregular major surface and an opposite second irregular major surface. The nonwoven web further includes a fiber component comprising staple fibers having a linear density ranging from about 50 denier to about 2000 denier and a crimp index value ranging from about 15% to about 60%. The nonwoven web further includes a binder dispensed on the fiber component and abrasive particles dispersed throughout the nonwoven web.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: October 24, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Louis S. Moren, Scott M. Mevissen, Gregory G. Mehsikomer, Shawn C. Bell, Gary T. Stram
  • Patent number: 11795126
    Abstract: Mechanical stirred bed reactors that incorporate a screen are described. Methods of using such reactors to process perfluoropolymers to form perfluorinated olefin monomers are also described. The reactors and methods may be used to upcycle filled perfluorinated materials.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: October 24, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Markus E. Hirschberg, Klaus Hintzer, Thomas G. Kolbeck, Matthias Wieland, Peter Bauer, Achim Schmidt-Rodenkirchen, Thorsten Gerdes
  • Patent number: 11795349
    Abstract: The disclosed adhesive sheet exhibits high anchoring performance and where separation between the substrate and the adhesive layer substantially does not occur when unwinding or re-peeling in actual applications. The adhesive sheet comprises a substrate including a urethane polymer component at least at a portion of a surface and a silicone adhesive layer that is in contact with the urethane polymer component, wherein the urethane polymer having a chain extender-derived hard segment and a polyoxyalkylene polyol-derived soft segment.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: October 24, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Yoshiteru Kakinuma, Aizoh Sakurai
  • Patent number: 11795326
    Abstract: Compositions include a compound preparable by reaction of components comprising an optionally crosslinked polyethylenimine and at least one an amine-reactive hydrolyzable organosilane represented by the formula R—Z—SiY3. R represents an amine-reactive group containing 1 to 18 carbon atoms; Z represents a divalent organic group containing 1 to 8 carbon atoms; and each Y independently represents a hydrolyzable group. Methods of using the compositions to make articles, and articles produces thereby are also disclosed. A composition comprising an intimate mixture of a crosslinked polyethylenimine and a polymeric binder material, and a method of making it is also disclosed.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: October 24, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Naiyong Jing, Kevin D. Landgrebe, Ryan T. Woldt, Wensheng Xia, Timothy J. Nies
  • Patent number: 11793678
    Abstract: Provided is a bandage composition dispenser and/or applicator that includes a nozzle and a cap. In some embodiments, the dispenser and/or applicator is used to dispense a bandage or dressing composition that forms a durable film bandage or skin protectant.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: October 24, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Delony L. Langer-Anderson, Eric M. Chinnock, Junia M. Pereira, Jason S. Lind
  • Patent number: 11793422
    Abstract: A system includes a respirator, a sensor including a sensing element, and a reader configured to be in wireless communication with the sensor. The sensor is positioned substantially within an interior gas space of the respirator.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: October 24, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Richard C. Webb, Andrew S. Viner, Nicholas G. Amell, Andrew P. Bonifas, Neal A. Rakow
  • Patent number: 11794369
    Abstract: An apparatus for applying weight material onto a wheel may include a conveyor assembly, upper and lower severing-head assemblies, and upper and lower control arms. The severing-head assemblies may be mounted above and below the conveyor assembly and may include a housing, a severing device and a dispensing mechanism. The dispensing mechanism may position the weight material from a source relative to the severing device. The severing device may separate a predetermined amount of weight material from a source. The control arms may be movably mounted above and below the conveyor assembly and have weight-application tools configured to transfer the predetermined amounts of weight material from the severing-head assemblies to locations on the wheel.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: October 24, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: John S. Taylor, Benjamin D. Belknap, Mark A. Compton
  • Patent number: 11793734
    Abstract: An aqueous oral care one-part composition (e.g., solution), a kit that includes such composition (e.g., solution), and methods (e.g., a method of providing fluoride to a patient's tooth surface), wherein the oral care composition (e.g., solution) includes: silver cations; iodide anions; fluoride anions; and water.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: October 24, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Yizhong Wang, Ta-Hua Yu, Joel D. Oxman, Richard P. Rusin
  • Patent number: 11795287
    Abstract: Various embodiments disclosed relate to pore inducers and porous abrasive forms made using the same. In various embodiments, the present invention provides a method of forming a porous abrasive form including heating an abrasive composition including pore inducers to form the porous abrasive form. During the heating the pore inducers in the porous abrasive form reduce in volume to form induced pores in the porous abrasive form.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: October 24, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Brian D. Goers, Mark A. Lukowski, Walter Flaschberger, Ernest L. Thurber, John E. Gozum
  • Patent number: 11787970
    Abstract: A hardcoat composition includes one or more multifunctional (meth)acrylate monomers, and a nanoparticle mixture dispersed within the one or more multifunctional (meth)acrylate monomers. The nanoparticle mixture includes a first population of reactive nanoparticles. The first population of reactive nanoparticles have an average particle diameter in a range from 5 nm to 60 nm, and a second population of non-reactive nanoparticles. The second population of non-reactive nanoparticles have an average particle diameter in a range from 5 nm to 60 nm.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: October 17, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Peter D. Condo, D. Scott Thompson, John J. Stradinger, Catherine A. Leatherdale, Richard J. Pokorny, Steven D. Solomonson
  • Patent number: 11787137
    Abstract: An optical system includes a partial reflector having an average optical reflectance of at least 30% in a desired plurality of wavelengths, a display panel disposed to emit image light toward the partial reflector, and a multilayer reflective polarizer disposed proximate the partial reflector. The multilayer reflective polarizer is curved about two orthogonal axes and includes at least one layer substantially optically uniaxial at at least one location. The image light is transmitted by the multilayer reflective polarizer after it is first reflected by the multilayer reflective polarizer. A quarter wave retarder may be disposed between the reflective polarizer and the partial reflector.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: October 17, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Andrew J. Ouderkirk, Timothy L. Wong, Zhisheng Yun, Erin A. McDowell, Gregg A. Ambur
  • Patent number: 11786345
    Abstract: A method of making a physical object by additive manufacturing. The method has the steps of providing a light hardenable primary material (11), building up the object (100) by successively hardening portions of the light hardenable primary material (11) by irradiating the portions with light, coating at least a part of the object (100) with a light permeable coating or oxygen protective material; and irradiating the coated object (100) with light and thereby post-hardening any light hardenable material (11).
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: October 17, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bastian P. Kirchner, Gioacchino Raia, Anja Friedrich, Daniel D. Oberpertinger, Malte Korten, Andreas G. Herrmann
  • Patent number: 11787929
    Abstract: A composition is described comprising semicrystalline polylactic acid polymer; polyvinyl acetate polymer having a glass transition temperature (Tg) of at least 25° C.; plasticizer; and optionally amorphous polylactic acid polymer. In another embodiment the composition further comprises nucleating agent. Also described are films comprising the composition as well as articles, such as a tape or sheet, comprising the film described herein and a layer of pressure sensitive adhesive disposed on the film.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: October 17, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Ning Zhou, Robert S. Clough, Derek J. Dehn, Jeffrey P. Kalish, William W. Merrill, Kevin M. Lewandowski, Jayant Chakravarty
  • Patent number: D1002114
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: October 17, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Mark A. Yoder, Paul D. Henry, Michael C. Leighton