Patents by Inventor Stephen A. Johnson

Stephen A. Johnson 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).

  • Publication number: 20220097169
    Abstract: A linear friction welding system includes a processing circuit configured to execute program instructions stored in a memory to control a first motor using one of a torque and speed control, placing a plurality of timing gears in a configuration wherein a fixed projection of one of the timing gears is at a trail position of a slot of another timing gear such that two power shafts of a cam assembly are rotating in phase and a ram is motionless. The processing circuit further controls a hydraulic press to generate a pressure between two components to be welded with the power shafts rotating in phase, and controls the second motor using the one of the torque and speed control to place the timing gears in a second configuration whereat the fixed projection is at a lead position of the slot thereby forcing the ram to oscillate.
    Type: Application
    Filed: December 9, 2021
    Publication date: March 31, 2022
    Inventors: Thaddeus W. Gorski, Stephen A. Johnson
  • Publication number: 20220098363
    Abstract: Uncured aqueous composition comprising surfactant and a blend of (a) a first sulfonated polyester having a glass transition temperature not greater than 75° C. that is not sulfonated polyethylene naphthalate, (b) a second, sulfonated polyester that is a sulfonated polyethylene naphthalate, (c) melamine-formaldehyde crosslinker, and (d) an epoxy silane coupling agent; and cured composition thereof. Compositions described herein are useful, for example, for making primed film for release liners applications.
    Type: Application
    Filed: March 25, 2020
    Publication date: March 31, 2022
    Inventors: Jeffrey A. Peterson, Maria A. Appeaning, Christopher P. Gerlach, David J. Kinning, Madison P. Bennett, Marie A. Boulos, Anna M. Clausen, Victor Ho, Kevin T. Huseby, Stephen A. Johnson, Scott M. LeBow
  • Patent number: 11273630
    Abstract: Transfer films, articles made therewith, and methods of making and using transfer films to form an electrical stack are disclosed. The transfer films may include a plurality of co-extensive electrical protolayers forming an electrical protolayer stack, at least selected or each electrical protolayer independently comprising at least 25 wt % sacrificial material and a thermally stable material and having a uniform thickness of less than 25 micrometers. The transfer films may include a plurality of co-extensive electrical protolayers forming an electrical protolayer stack, at least selected or each protolayer independently exhibiting a complex viscosity of between 103 and 104 Poise at a shear rate of 100/s when heated to a temperature between its Tg and Tdec.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: March 15, 2022
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Martin B. Wolk, Michael Benton Free, Daniel J. Schmidt, Justin P. Meyer, Mark J. Pellerite, Stephen A. Johnson, Terry O. Collier, Xiaohua Ma
  • Patent number: 11247501
    Abstract: Transfer films, articles made therewith, and layer-by-layer methods of making and using transfer films to form an inorganic optical stack are disclosed.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: February 15, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Daniel J. Schmidt, Mark J. Pellerite, Martin B. Wolk, Stephen A. Johnson
  • Publication number: 20220010171
    Abstract: Described herein is a release coating composition, articles made with the release coating composition and methods of making a release liner. The release coating composition comprising: (i) a sulfonated polyester siloxane polymer derived from: (a) at least one organic diol monomer, (b) at least one organic diacid monomer, at least one diester monomer or mixtures thereof; (c) at least one carbinol terminated polydimethylsiloxane, at least one carboxy terminated polydimethylsiloxane or mixtures thereof; and (d) at least one ion salt on a sulfonate difunctional monomer; (ii) a water-soluble or water-dispersible second polymer; and (iii) a thermally activated curing system, comprising a multifunctional compound.
    Type: Application
    Filed: December 19, 2019
    Publication date: January 13, 2022
    Inventors: Victor Ho, Karl E. Benson, Kevin T. Huseby, Stephen A. Johnson, Anna Clausen, Jeffrey A. Peterson
  • Patent number: 11203082
    Abstract: A cam assembly in a linear friction welding system includes two power shafts. Each of the shafts have two timing gears mounted thereupon. For one of the shafts, one of the timing gears includes a slot extending within the timing gear which is formed as an arc about a center of rotation of the power shaft. The other timing gear on that shaft includes a fixed pin which extends into the slot. A cross-over shaft is operably connected to both power shafts.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: December 21, 2021
    Assignee: APCI LLC
    Inventors: Thaddeus W. Gorski, Stephen A. Johnson
  • Publication number: 20210357955
    Abstract: Described herein are embodiments for improving search engine results of listings of For Sale Objects (FSOs). A search engine may be improved by implementing rules that resolve ambiguity between listings for different (FSOs) that match the same search inputs. An unsupervised machine learning module may evaluate candidate rules and identify improvements that may not be obvious to a human evaluator. An ecommerce site that combines the improved search engine with the unsupervised machine learning module may dynamically evaluate search results using different candidate rules and iteratively improve search results.
    Type: Application
    Filed: May 6, 2021
    Publication date: November 18, 2021
    Inventors: Sahil RISHI, Manikandan SANKAR, Byong Mok OH, Yodhavee CHUENBUNLUESOOK, Shuichi IIDA, Jeffrey Kenichiro HARA, Stephen JOHNSON
  • Publication number: 20210325587
    Abstract: Multilayer reflective polarizers are described. In particular, multilayer reflective polarizers that include both crystalline high index layers and low index layers are disclosed. These reflective polarizers may be particularly suitable for automotive, architectural, and industrial applications.
    Type: Application
    Filed: August 29, 2019
    Publication date: October 21, 2021
    Inventors: Matthew B. Johnson, Adam D. Haag, Carl A. Stover, Timothy J. Nevitt, William F. Edmonds, Stephen A. Johnson
  • Publication number: 20210302633
    Abstract: Photochromic article having first and second opposed major surfaces comprising a first, transparent layer having first and second opposed major surfaces, the first layer comprising thermoplastic, a second, transparent layer having first and second opposed major surfaces, the second layer comprising photochromic dye and amorphous copolyester, wherein the first major surface of the second layer is adjacent to the second major surface of the first layer, and a third layer having first and second opposed major surfaces, wherein the first major surface of the third layer is adjacent to the second major surface of the second layer. Embodiments of photochromic article described herein are useful, for example in eyewear, window films, security films, decorative films, electronic devices (i.e., having a display with a photochromic article).
    Type: Application
    Filed: August 20, 2019
    Publication date: September 30, 2021
    Inventors: Kevin T. Huseby, Michael Benton Free, Victor Ho, Stephen A. Johnson, Christopher W. A. Krohe
  • Publication number: 20210237210
    Abstract: The axle welder can be easily configured and adjusted to accommodate axle assemblies of varying axle shaft lengths, hub styles (“straight” and “drop axle”) and lug bolt configurations. The axle welder uses a sliding carriage that slides along the support frame at one end of the welder to accommodate differing shaft lengths. The axle welder also includes a pair of pivoting hub lifts that accommodate both straight and drop axle style axle hubs using modular mounting plates. Modular mounting plates (“hub adaptors”) fitted to the hub lifts accommodate hub assemblies with differing lug bolt patterns. The axle welder is built on a rectangular frame that supports a pair of weld units and articulated electrode arms. The axle welder also includes a pair axle supports for carrying the axle shafts within the support frame. A shaft drive pivotally mounted to the support frame lowers to engage and rotate the axle shaft and hub assemblies in unison during the welding process.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 5, 2021
    Inventors: Stephen A. Johnson, Dean Sevenevy, Wendell J. Klota
  • Publication number: 20210237336
    Abstract: A method for making low shrink polyester films wherein the films are arranged in stacks, tentered, heat treated, and relaxed in unison. Also, polyester films produced by such method.
    Type: Application
    Filed: December 28, 2016
    Publication date: August 5, 2021
    Inventors: JOHN P. PURCELL, JAMES B. SVACHA, STEPHEN A. JOHNSON, TIMOTHY J. LINDQUIST, GRANT F. TIEFENBRUCK, CHAD R. WOLD
  • Publication number: 20210190305
    Abstract: Apparatus for providing fire protection and/or an electrical enclosure for a grow light having at least one light assembly that contains an array of light emitting diodes (LEDs). A fire protection shield is a planar sheet configured to fit over a light assembly with the circuit shield including openings sized to allow the LEDs to protrude therethrough such that the circuit shield allows transmission of light emitted from the LEDs. The electrical enclosure is a wire shield, or wire cover, configured to cover the exposed conductors electrically connected to the light assemblies. The wire cover extends beyond the light assembly, offering both physical and electrical protection of the light assembly. The light assembly is attached to one side of a base plate that has a power supply on an opposite side. In one embodiment, the base plate includes a plurality of lamp portions, each having a light assembly.
    Type: Application
    Filed: December 23, 2020
    Publication date: June 24, 2021
    Inventors: Stephen Johnson, Amit Chandna
  • Patent number: 11016231
    Abstract: A retarder including first and second outer layers and a birefringent layer disposed between and in direct contact with the first and second outer layers is described. The birefringent layer may include a first polyester having greater than 45 mole percent naphthalate units and greater than 45 mole percent ethylene units. Each of the first and second outer layers includes a second polyester which may include 40 to 50 mole percent naphthalate units, at least 25 mole percent ethylene units, and 10 to 25 mole percent of branched or cyclic C4-C10 alkyl units. The retarder has a retardance in a range of 1 micrometer to 100 micrometers.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: May 25, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Stephen A. Johnson, Derek W. Patzman, Richard Y. Liu, Victor Ho, John F. Van Derlofske, III
  • Publication number: 20210120698
    Abstract: A thermal component has a shield portion and a heat exchanger portion. The shield portion includes a plurality of cells adapted to inhibit radio radiation (RF) having a frequency within a target frequency range, while the heat exchanger portion includes a plurality of elongated channels, each one of the elongated channels being physically connected to and in fluid communication with at least one corresponding cell of the plurality of cells.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 22, 2021
    Inventors: Rob HUALA, Nanqiang ZHU, Donovan D. VAN SLEET, Aaron Ray PAFF, Andrew Douglas DELANO, Patrick Stephen JOHNSON
  • Patent number: 10962806
    Abstract: Optical lenses are described and include a polymeric interference filter disposed on a curved polymeric substrate. The optical lens has an average light transmission of less than 2% across a band of blue light from 400 nm to at least 420 and up to 440 nm and substantially transmits blue light greater than 450 nm.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: March 30, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael F. Weber, James E. Watson, Mark R. Strenger, Stephen A. Johnson, Chad R. Wold
  • Publication number: 20210078100
    Abstract: A component for use in a linear friction welding system includes a base portion terminating at a predefined boundary plane associated with a weld interface between the component and a further component when the component is welded to the further component. The boundary plane defines a cross sectional area of the component. A shaped charge portion extends from the boundary plane. The shaped charge portion includes a contact initiation portion having a surface area and is configured to provide initial contact between the component and the further component during the welding procedure. The cross sectional area is larger than the surface area.
    Type: Application
    Filed: November 24, 2020
    Publication date: March 18, 2021
    Inventor: Stephen A. Johnson
  • Patent number: 10934282
    Abstract: The present invention relates to a compound according to general formula (I) wherein X represents N or CH; R1 is —CN, (C1-C6)alkyl, (C3-C7)cycloalkyl, (3-7 membered)heterocycloalkyl, (5-6 membered)heteroaryl, (C3-C7)cycloalkyl(C1-C4)alkyl, (3-7 membered)heterocycloalkyl-(C1-C4)alkyl or (5-6 membered)heteroaryl-(C1-C4)alkyl; R2 is halogen, cyano, (C1-C4)alkyl or (C3-C7)cycloalkyl; R3 is halogen, cyano, (C1-C4)alkyl, (C1-C4)haloalkyl or (C3-C7)cycloalkyl; R4 is (C1-C4)alkyl or (C1-C4)haloalkyl; R5 is (C1-C6)alkyl, (C3-C7)cycloalkyl, (C1-C6)alkyl-(C3-C7)cycloalkyl, (C3-C7)cycloalkyl-(C1-C6)alkyl, (3-7 membered)heterocycloalkyl, phenyl, (5-6 membered)heteroaryl or —ORa. The invention further relates to said compounds for use in therapy, to pharmaceutical compositions comprising said compounds and to intermediates for preparation of said compounds.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: March 2, 2021
    Assignee: LEO Pharma A/S
    Inventors: Alan Stuart Jessiman, Patrick Stephen Johnson, Kristoffer Maansson, Morten Dahl Sørensen
  • Publication number: 20210053320
    Abstract: Optical films are disclosed. In particular, optical films including a layer of polycarbonate having first and second major surfaces are described. The optical films have excellent bending lifetime properties and also low haze, thinness, and low in-plane and out-of-plane retardation.
    Type: Application
    Filed: February 19, 2019
    Publication date: February 25, 2021
    Inventors: Derek W. Patzman, Kristopher J. Derks, Stephen A. Johnson, Gary E. Gaides
  • Publication number: 20210018713
    Abstract: A passive cooling article is disposed on a substrate to cool the substrate. The article includes an outer layer having a high absorbance in the atmospheric window region of the electromagnetic spectrum and having a high transmittance in the solar region of the spectrum. The article also includes a reflector having a high reflectivity in the solar region of the spectrum. At least one of the outer layer and the reflector includes a fluoropolymer. Micro-sized particles or surface structures may be disposed in or on the outer layer or the reflector to improve absorbance. A metallic layer may be disposed between the fluoropolymer and the substrate to be cooled.
    Type: Application
    Filed: December 21, 2018
    Publication date: January 21, 2021
    Inventors: Timothy J. Hebrink, William B. Black, Stephen A. Johnson, Kenneth A. Meyer, Craig A. Miller, Derek W. Patzman
  • Patent number: D925105
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: July 13, 2021
    Assignee: Horticulture Lighting Group Corp.
    Inventors: Stephen Johnson, Amit Chandna