Patents Assigned to 3M INNOVATIVE PROPERTY COMPANIES
  • Optical film and optical system
    Patent number: 11378723
    Abstract: A multilayer optical film including a first layer having an index of refraction n1 at a wavelength ? in a range from about 580 nm to about 650 nm, and a second layer having an index of refraction n2 at ? is described. The first and second layers define an interface therebetween comprising a two-dimensional grating. The grating may have an average height H such that |n1?n2|*H is in a range from 0.24 micrometers to 0.3 micrometers. Optical systems including the multilayer optical film are described. A subpixel in a display surface of the optical system may be diffracted into a zero diffraction order and a plurality of first diffraction orders where the intensities of the zero and first diffraction orders are with 10% of each other at ?. The optical system may have a modulation transfer function greater than 0.4 at 10 line pairs per millimeter.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: July 5, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Zhaohui Yang, Brett J. Sitter, James A. Thielen, Nathaniel K. Naismith
  • Structural adhesive with improved corrosion resistance
    Patent number: 11377576
    Abstract: The present disclosure relates to a thermosettable structural adhesive composition comprising an epoxy compound; a thermoplastic compound; an epoxy curing agent; at least one mineral filler, wherein the at least one mineral filler is capable of absorbing water. The thermosettable structural adhesive composition can exhibit an improved corrosion resistance while also providing good adhesive properties such as good t-peel strength and overlap shear strength.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: July 5, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Elisabeth Cura, Sohaib Elgimiabi
  • Dispenser with applicator tip
    Patent number: 11377263
    Abstract: A dispenser (1) for liquids includes a reservoir (100) defining a volume (V100) for housing a liquid (150); a delivery tube (200) with a first end (201) attached to the reservoir, and a second end (202) distal from the reservoir, the delivery tube including a passage (203) in fluid communication with the volume of the reservoir and extending away from the reservoir; an applicator element (300) including an applicator tip (320) and a base (310) attached to the second end of the delivery tube, the applicator tip having a plurality of fingers (322) extending away from the base to a distal end of the applicator element distal from the delivery tube; and a removable seal (340), wherein removal of the removable seal creates an opening in the passage at a location upstream of the applicator tip and a fluid distribution channel between the fingers.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: July 5, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Henry C. Gydesen, Paul R. Klaiber, Yizhong Wang, Bruce R. Broyles
  • Negative pressure wound therapy article with features
    Patent number: 11376164
    Abstract: An article, including a network of interconnected polymeric strands; wherein each of the interconnected polymeric strands has a first surface adapted to contact a tissue site and a second surface opposite the first surface; wherein at least one of the interconnected polymeric stand has a plurality of features extending from the first surface of the interconnected polymeric strands; wherein at least one of the interconnected polymeric strands is non-linear; a plurality of openings between adjacent interconnected polymeric strands; an adhesive layer in contact with the second surface of the interconnected polymeric strands; and a filler in contact with the adhesive layer, the adhesive layer in between the network of interconnected polymeric strands and the filler; wherein the article is a negative pressure wound therapy article.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: July 5, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Amy K. McNulty, Robert T. Fitzsimons, Jr., Kurt J. Halverson, Bryan A. Baker, Jana Ninkovic, Jie Liu, Minghua Dai, Wei Zhang, Kiu-Yuen Tse, David R. Holm, Graham M. Clarke, Federica Sgolastra
  • Fluorine-free fibrous treating compositions, treated substrates, and treating methods
    Patent number: 11377785
    Abstract: A fluorine-free treating composition that includes Component A and at least one of Components B and C, wherein: Component (A) includes one or more polymeric compounds derived from the polymerization of at least one (meth)acrylate monomer comprising at least one hydrocarbon group having from 1 to 60 carbon atoms; Component (B) includes one or more compounds derived from reaction, in one or more steps, of components comprising: (i) at least one isocyanate-reactive oligomer comprising 2 to 20 repeating units, or an alcohol having at least one linear or branched hydrocarbon group having from 16 to 40 carbon atoms and optionally one or more ester groups; (ii) at least one polyisocyanate; (iii) optionally at least one additional isocyanate-reactive compound; and (iv) optionally at least one isocyanate blocking agent; and Component (C) includes one or more polycarbodiimide compounds.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: July 5, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Dirk M. Coppens, Rudolf J. Dams
  • Conformable, stretch releaseable adhesive articles
    Patent number: 11377575
    Abstract: The present disclosure generally relates to conformable stretch release adhesive and/or stretch-releasable, adhesive articles that are capable of attaching or adhering to a substrate and that can be removed from the substrate without causing damage to the substrate. The present disclosure also generally relates to methods of making and using such adhesive articles.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: July 5, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Christina D. Cowman-Eggert, Corinne E. Lipscomb, Bradley S. Forney, Megan P. Lehmann, Michael E. Fussy
  • Light curable compositions
    Patent number: 11377573
    Abstract: A curable composition that includes a urethane multifunctional (meth)acrylate, an inorganic filler having a primary particle dimension of at least 200 nm, a photoinitiator system that can be activated by electromagnetic radiation in the range of 340-550 nm, a reactive diluent, and a reinforcing silica having a primary particle dimension of 100 nm of less. The sum of the absolute value of the difference in the refractive index of the filler and the refractive index of the composition cured without filler plus the birefringence of the filler is 0.054 or less, i.e. 0.054?|nfiller?nmatrix|+?filler, where nfiller is the refractive index of the filler, nmatrix is the refractive index of the composition cured without filler, and ?filler is the birefringence of the filler.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: July 5, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Ying Lin, Sheng Ye, Timothy D. Dunbar, Bradley D. Craig, Dong-Wei Zhu, Matthew J. Kryger, Richard J. Pokorny, Michael A. Kropp
  • Optical articles and systems interacting with the same
    Patent number: 11373076
    Abstract: Optical articles including a spatially defined arrangement of a plurality of data rich retroreflective elements, wherein the plurality of retroreflective elements comprise retroreflective elements having at least two different retroreflective properties and at least two different optical contrasts with respect to a background substrate when observed within an ultraviolet spectrum, a visible spectrum, a near-infrared spectrum, or a combination thereof.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: June 28, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Michael A. McCoy, Anne C. Gold, Silvia Geciova-Borovova Guttmann, Glenn E. Casner, Timothy J. Gardner, Steven H. Kong, Gautam Singh, Jonathan T. Kahl, Nathan J. Anderson, Catherine L. Aune, Caroline M. Ylitalo, Britton G. Billingsley, Muhammad J. Afridi, Kui Chen-Ho, Travis L. Potts, Robert W. Shannon, Guruprasad Somasundaram
  • Curable compositions and related methods
    Patent number: 11370908
    Abstract: Provided is a curable composition containing a reactive mixture of components including an polyethersulfone having a chemical group reactive with an epoxide, a cycloaliphatic polyepoxide resin, a polyepoxide having a functionality greater than two, a liquid diepoxide resin, a first curative containing 9,9-bis(aminophenyl)fluorene or a derivative therefrom and having a curing onset temperature of from 150° C. to 200° C. The components can further comprise a second curative having a curing onset temperature of from 60° C. to 180° C. When thermally curing this composition, the second epoxy curative starts to cure before the first epoxy curative, thereby inhibiting vertical flow of the adhesive during the curing process.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: June 28, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Lianzhou Chen, Dmitriy Salnikov
  • UV curable epoxy/acrylate adhesive composition
    Patent number: 11370944
    Abstract: An adhesive composition is described comprising a tetrahydrofurfuryl (meth)acrylate copolymer; an epoxy resin; a polyether polyol; and a hydroxy-functional film-forming polymer. The adhesive may be used in structural and semi-structural bonding applications.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: June 28, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kathleen S. Shafer, Thomas Q. Chastek, Cyrus A. Anderson
  • Method of making a laminate
    Patent number: 11370211
    Abstract: The method includes providing a thermoplastic web having mechanical fastening elements and a nonlinear line of weakness that extends predominantly in a first direction and demarcates nonlinear edges of two sub-webs but does not sever the thermoplastic web. The method further includes severing the thermoplastic web at the nonlinear line of weakness into the two sub-webs and joining the two sub-webs to a carrier to form the laminate. The two sub-webs are separated in a second direction perpendicular to the first direction. Severing the thermoplastic web and joining the two sub-webs to the carrier are carried out in-line without offsetting the two sub-webs in the first direction.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: June 28, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Ryan M. Luepke, Scott M. Niemi, Thomas J. Gilbert, Adam A. Krzmarzick
  • Verifying structural integrity of materials
    Patent number: 11371952
    Abstract: An armor piece may include a tested material. The armor piece also may include a plurality of electrical contacts distributed about and electrically connected to the tested material. The armor piece further may include a non-volatile memory (NVM) device. The NVM device may be hardened against exposure to x-ray radiation. The NVM device may be configured to store control voltages associated with respective electrical contacts of the plurality of electrical contacts.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: June 28, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Christopher R. Yungers, Subhalakshmi M. Falknor, David H. Redinger
  • Substituted imidazo[4,5-c]quinoline compounds with an N-1 branched group
    Patent number: 11370788
    Abstract: Imidazo[4,5-c]quinoline compounds having a substituent that is attached at the N?1 position by a branched group, single enantiomers of the compounds, pharmaceutical compositions containing the compounds, and methods of making the compounds are disclosed. Methods of use of the compounds as immune response modifiers, for inducing cytokine biosynthesis in humans and animals, and in the treatment of diseases including infectious and neoplastic diseases are also disclosed.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: June 28, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: George W. Griesgraber, Kevin J. Bechtold
  • Earmuff hearing-protection device comprising sound-attenuating members
    Patent number: 11369521
    Abstract: An earmuff hearing-protection device (1) including a non-porous, sound-attenuating body (50) disposed within an interior space (31) defined by a shell (30) of an earmuff of the device, the non-porous, sound-attenuating body including sound-attenuating members (100) arranged and spaced to define a set of high aspect ratio air gaps (e.g. 300) between major side surfaces of neighboring members.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: June 28, 2022
    Assignee: 3M Innovative Properties Company
    Inventor: Per Ove Almeflo
  • High solar-reflectivity roofing granules utilizing low absorption components
    Patent number: 11371244
    Abstract: An uncolored roofing granule including a low solar absorption base and a low solar absorption and solar opaque coating presented on the base, the coating including a binder, a pigment, wherein the binder includes a curable component and a non-clay, thermally reactive curing agent.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: June 28, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Feng Bai, Kenton D. Budd, Rebecca L. Everman, Craig W. Lindsay
  • Ergonomic chestpiece
    Patent number: 11369336
    Abstract: Aspects of the present disclosure relate to an ergonomic chestpiece for a stethoscope. The chestpiece includes a bottom surface which is generally planar and adapted to be placed near the patient for receiving auscultatory sounds. The chestpiece includes a raised center portion defining first and second lateral indented gripping surfaces, the raised center portion having a top surface opposite the bottom surface. The chestpiece includes a stem portion extending distally from the raised center portion. The first lateral indented gripping surface is defined by a first wall comprising a first concave surface arcuate about a first axis and the second lateral indented gripping surface is defined by a second wall comprising a second concave surface arcuate about a second axis. The first axis and the second axis form a V-shape comprising an apex oriented in a direction of the stem portion.
    Type: Grant
    Filed: August 15, 2018
    Date of Patent: June 28, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: William Bedingham, Daniel J. Rogers, Tyler J. Sandback
  • Adhesive article and methods of making and using the same
    Patent number: 11370940
    Abstract: An adhesive article comprising first and second tacky latent adhesive layers disposed on respective first and second opposed major surfaces of a substrate. Each of the first and second tacky latent adhesive layers independently comprises at least one polymerizable component, and a redox initiator system comprising a transition metal complex that participates in a redox cycle, an oxidizing agent, and a blocked reducing agent represented by the formula ((I). Each of R1 and R2 are independently H, an alkyl, an aryl, or RPhoto5 with the proviso that at least one of R1 and R2 is RPhoto. RPhoto represents a photoremovable group. Each of R3 and R4 independently represents H, an alkyl group, or an aryl group comprising a monovalent ester, ether, urethane, or carbonate group. Methods of making and using the adhesive articles are also disclosed.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: June 28, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Erik M. Townsend, Shantanu R. Ranade, William H. Moser, Kathleen S. Shafer, Michael A. Kropp, Jayshree Seth, Ross E. Behling
  • Dosage dispenser
    Patent number: D955881
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: June 28, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Andreas J. Boehm, Marc Peuker, Giuseppe De Bellis, Stefan Eckstein, Kristina Hinz
  • Hanger for clothing and accessories
    Patent number: D956436
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: July 5, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Ying Hua Yang, Pei-Chun Chang, Chao Ren, I Lin Hsiao
  • User interface for a welding helmet
    Patent number: D957064
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: July 5, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Linus P. Bastman, Emil R. Eriksson, Erik Oskar Juhlin, Marcus T. R. Wiederkehr, John M. Kruse, Christopher M. Brown, Jon A. Kirschhoffer