Patents Assigned to 3M
  • Maintenance-free respirator that has concave portions on opposing sides of mask top section
    Patent number: 10827787
    Abstract: A maintenance-free respirator 10 that includes a mask harness and a mask body 11. The mask body 11 has at least one layer of filter media 56 and has a perimeter 32 that includes an upper segment 34. The upper segment 34 includes first and second concave segments 36, 38 that are located, respectively, on first and second sides of a central plane 40, when viewing the mask body from a top view. A maintenance-free respirator 10 of this configuration is comfortable to wear and can provide a snug fit to a wearer's face, particularly beneath each of the wearer's eyes, while at the same time having an ability to improve compatibility with various protective eyewear.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: November 10, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: John M. Facer, Christopher P. Henderson, Peter S. Leonard, Desmond T. Curran
  • Heating tape and system
    Patent number: 10834786
    Abstract: A heating tape comprises an insulated heating element that includes a heating element layer comprising a polymer composite having conductive particles and at least one set of conductive electrodes at least partially embedded in the polymer composite and extending along at least a substantial portion of the length of the heating tape. A heating tape system for a pipe or other surface, further includes a power ramp controller having a solid state relay component to regulate an in-rush of current to the heating element. The heating tape system also includes a connector having multiple contact points.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: November 10, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Jian Li, Paolo Rocca, Jonathan M. Cliffen, Ranjith Divigalpitiya, Frank A. Brandys, Anibal S. Sanchez-Garcia, Weixing Hou, David E. Livingstone, Raul P. Moraes
  • Film with layered segments and apparatus and method for making the same
    Patent number: 10828862
    Abstract: A film having first segments and second segments arranged across the film's width direction is disclosed. The first and second segments are separated from each other by polymer interfaces. The first segments include a first polymeric composition and the second segments include a second polymeric composition. At least some of the second segments are layered second segments having first and second layers in the film's thickness direction, and one of the first or second layers includes a third polymeric composition different from the second polymeric composition. An extrusion die useful for making the film and a method for making the film using the extrusion die are also disclosed.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: November 10, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas P. Hanschen, Ronald W. Ausen, William J. Kopecky
  • Formed hexagonal boron nitride body, hexagonal boron nitride granulates for making the same, and process for producing the same
    Patent number: 10829417
    Abstract: Provided are formed bodies comprising hexagonal boron nitride wherein the formed body has a Brinell hardness of at least 2 HBW 2,5/2, and wherein the formed body is obtainable by a process at temperatures of at most 100° C., and wherein the Brinell hardness is measured according to DIN EN ISO 6506-1 (2013). Further provided are processes for making said formed body.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: November 10, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Krishna B. Uibel, Jan C. Zimmer, Christoph Lesniak, Robert M. Schädel
  • Quantum dots with stabilizing fluorochemical agents
    Patent number: 10829686
    Abstract: Disclosed are quantum dots and quantum dot articles stabilized by a stabilizing agent of the formula: wherein each R1 is a hydrocarbyl group including alkyl, aryl, alkaryl and aralkyl; R2 is a divalent hydrocarbyl group selected from alkylene, arylene, alkarylene and aralkylene; Z is P, As or Sb; Q is —CH2—S—, —CH2—O—, —CO2—, —CH2—O—CO—, —CONR3—, —NH—CO—NR3—, and —NR3, where R3 is H or C1-C4 alkyl, subscript x is 1, R6 is a divalent hydrocarbyl group selected from alkylene, arylene, alkarylene and aralkylene, subscript y is 0 or 1, Rf is a perfluoroether group.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: November 10, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Paul B. Armstrong, Saswata Chakraborty, Michael C. Palazzotto, Guy D. Joly
  • Additive stabilized composite nanoparticles
    Patent number: 10829687
    Abstract: A composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a stabilizing additive of the formula (I), wherein R1 is a hydrocarbyl group, including aryl, alkaryl, alkyl or aralkyl, preferably at least one of R1 is aryl or alkaryl, more preferably at least two are aryl or alkaryl; R2 is R1 when a is one and a C1-C10 divalent alkylene when a is 2; Z is P, As or Sb.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: November 10, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael C. Palazzotto, Saswata Chakraborty, Wayne S. Mahoney, Guy D. Joly, Karissa L. Eckert
  • AMPHIPHILIC COPOLYMER-BASED PROTECTIVE COATING COMPOSITION FOR METAL SURFACES
    Publication number: 20200347259
    Abstract: The present disclosure relates to a protective coating composition for a metal surface, wherein the composition comprises: a) an amphiphilic copolymer comprising: i. repeating monomeric units comprising a pendant group comprising a polyfluoropolyether group; ii. first repeating monomeric units comprising a first pendant group comprising a first polar functional group selected from the group consisting of carboxylate groups, hydroxyl groups, and any combinations or salts thereof; iii.
    Type: Application
    Filed: June 26, 2018
    Publication date: November 5, 2020
    Applicant: 3M Innovative Properties Company
    Inventors: Christoph SCHUELL, Frans AUDENAERT, Hugo LENS
  • DENTAL LIGHT POLYMERIZATION DEVICE
    Publication number: 20200345471
    Abstract: A dental light polymerization device has a polymerization light source and a camera. The dental light polymerization device comprises an actively movable light reflector. The invention provides for emitting light for polymerization of a dental material and capturing an image in the same dental light polymerization device.
    Type: Application
    Filed: April 11, 2017
    Publication date: November 5, 2020
    Applicant: 3M Innovative Properties Company
    Inventors: Rudolf SCHMID, Korbinian GERLACH, Stefan K. WELKER, Ralf KELZ, Thomas K. MÜLLER
  • Wireless power transfer and sensing for monitoring pipelines
    Patent number: 10823717
    Abstract: A system for use in wirelessly monitoring a pipeline such as a natural gas pipe. The system includes a locator configured to wirelessly transmit power and a subsoil sensor marker located adjacent the pipe and configured to wirelessly communicate with the locator. The sensor marker includes a microcontroller, a memory module, a sensor configured to sense the presence of a gas, and a power module. The power module is configured to harvest a sufficient amount of the power wirelessly transmitted from the locator in order to operate the microcontroller to take a measurement via the sensor, save the measurement in the memory module, and wirelessly transmit the measurement to the locator.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: November 3, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Stephen J. Willett, Ronald D. Jesme, Mohsen Salehi, Andrew P. Bonifas, Erik A. Aho, Craig R. Schardt, Amy J. Hite, Patrick M. Campbell
  • Smoke and sound barrier for a building penetration
    Patent number: 10823313
    Abstract: Described herein is a smoke and sound barrier for construction assemblies comprising a penetration wherein, optionally a packing material, and a non-porous adhesive article are used.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: November 3, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: John C. Hulteen, George W. Frost, Richard J. Haffner, Ernst L. Schmidt
  • Method of making a dental restoration
    Patent number: 10820970
    Abstract: A method of making a dental restoration has the steps of: determining a virtual space available for accommodation of a dental restoration for a tooth to be restored; retrieving a predefined virtual master dental restoration surface from a database; fitting the virtual master dental restoration surface in the space to provide a virtual outer dental restoration surface; creating a virtual inner dental restoration surface independent of a shape of the tooth to be restored; providing a virtual model of a dental restoration based on a combination of the virtual outer dental restoration surface and the virtual inner dental restoration surface; and fabricating the dental restoration based on the dental restoration model.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: November 3, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Bastian Kirchner, Malte Korten, Gallus Schechner
  • Welding protector with magnifying cover
    Patent number: 10821026
    Abstract: A welding protector (1) has a curved eye protection shield (10) with an electrically switchable light filter. The welding protector further has a magnifying cover (20) for arrangement on an eye facing inner side of the eye protection shield. The magnifying cover is pre-shaped based on a curve that extends equidistant to the curve the eye protection shield is based on. Further, the magnifying cover has two optical lenses (27) which in combination only partially cover the eye protection shield.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: November 3, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Kristina M. Magnusson, Britton G. Billinglsey, Christopher M. Brown, Timothy L. Wong, Kenneth Jarefors, John M. Kruse, Jon A. Kirschhoffer, John M. Pilgrim
  • Lipidated immune response modifier compound compositions, formulations, and methods
    Patent number: 10821176
    Abstract: The compound N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecanamide is a useful drug compound for enhancing immune response and can be used, for example, as a vaccine adjuvant and a cancer treatment.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: November 3, 2020
    Assignee: 3M Innovative Properties Company
    Inventor: Paul D. Wightman
  • Silicone-based pressure-sensitive adhesive
    Patent number: 10822532
    Abstract: Silicone-based pressure-sensitive adhesives, reaction mixtures used to form the pressure-sensitive adhesives, methods of making the silicone-based pressure-sensitive adhesives, and articles containing the silicone-based pressure-sensitive adhesives are described. More particularly, the silicone-based pressure-sensitive adhesives include silicone-based elastomeric materials that are prepared by polymerizing a silicone compound having at least two ethylenically unsaturated groups in the presence of actinic radiation (e.g., ultraviolet radiation) and a controlled radical initiator. The controlled radical initiator is a bis-dithiocarbamate or bis-dithiocarbonate compound having a single carbon between the two dithiocarbamate or dithiocarbonate groups.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: November 3, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Jitendra S. Rathore, Babu N. Gaddam, George W. Griesgraber, Kevin M. Lewandowski, Stephen B. Roscoe, Payam Khodaparast
  • Fluorinated pressure sensitive adhesives and articles thereof
    Patent number: 10822533
    Abstract: Described herein is a pressure sensitive adhesive comprising a high molecular weight fluorinated polymer having a Tg less than about 0° C. and a number average molecular weight greater than about 20 kilograms/mole; and a low molecular weight fluorinated polymer derived from an ethylenically unsaturated fluorinated monomer, wherein the low molecular weight fluorinated polymer has a Tg greater than about ?15° C. and a number average molecular weight less than about 18 kilograms/mole. Also described herein are articles comprising the pressure sensitive adhesive composition.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: November 3, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Francois C. O'Haese, Tatsuo Fukushi, Katherine A. Gibney, Klaus Hintzer, Tom Opstal, Jayshree Seth, David J. Yarusso
  • Removable footwear degradation sensor reader
    Patent number: 10820656
    Abstract: A shoe degradation sensor assembly includes a first sensor disposed in or proximate to a material layer of a shoe between a foot space and an outer surface of the shoe, and an electrical contact assembly operable to removably electrically connect the shoe degradation sensor assembly to a reader. The material layer changes in at least one physical property with degradation to the shoe, and the first sensor is configured to indicate the changing physical property of the material layer thereby indicating a degree of degradation to the shoe.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: November 3, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Andrew P. Bonifas, Brock A. Hable, Nicholas T. Gabriel, Ronald D. Jesme, Nicholas G. Amell, Kristy A. Jost
  • Outer shield contour line
    Patent number: D901087
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: November 3, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Martin A. J. M. Berggren, Oskar E. Juhlin
  • Grinding protection plate
    Patent number: D901088
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: November 3, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Martin A. J. M. Berggren, Oskar E. Juhlin
  • Scouring article
    Patent number: D901115
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: November 3, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Lauren K. Carlson, Robert J. Maki, Amber D Rhy, Pamela L. Werley
  • Welding helmet
    Patent number: D901782
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: November 10, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Linus P. Bastman, Emil R. Eriksson, Johan M. P. Hansson, Erik Oskar Juhlin