Patents by Inventor Johan Lönn

Johan Lönn 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: 20240132455
    Abstract: The present disclosure relates to certain (2S)—N-[(1S)-1-cyano-2-phenylethyl]-1,4-oxazepane-2-carboxamide compounds (including pharmaceutically acceptable salts thereof), that inhibit dipeptidyl peptidase 1 (DPP1) activity, to their utility in treating and/or preventing clinical conditions including respiratory diseases, such as asthma and chronic obstructive pulmonary disease (COPD), to their use in therapy, to pharmaceutical compositions containing them and to processes for preparing such compounds.
    Type: Application
    Filed: December 8, 2023
    Publication date: April 25, 2024
    Inventors: Hans Roland LÖNN, Stephen Connolly, Steven Swallow, Staffan Po Karlsson, Carl-Johan Aurell, John Fritiof PONTÉN, Kevin James Doyle, Amanda Jane VAN DE POËL, Graham Peter Jones, David Wyn Watson, Jacqueline Anne MACRITCHIE, Nicholas John Palmer
  • Patent number: 11852071
    Abstract: A crankshaft (1) for a crankcase scavenged two stroke piston engine (2) is disclosed. The crankshaft (1) is configured to rotate around a rotation axis (ax) during operation. The crankshaft (1) comprises a crankpin (3) configured to move in a crank plane (cp) during operation, and a first and a second counterweight (5, 7) arranged on either side (S1, S2) of the crank plane (cp). The first counterweight (5) has a first outer radius (r1) measured from the rotation axis (ax) and the second counterweight (7) has a second outer radius (r2) measured from the rotation axis (ax). The first outer radius (r1) is smaller than the second outer radius (r2). The present disclosure further relates to a power unit (10), a crankcase scavenged two stroke piston engine (2), and a hand-held power tool (20).
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: December 26, 2023
    Assignee: HUSQVARNA AB
    Inventors: Patrik Sigurdh, Anders Hansson, Per-Arne Järnland, Johan Lönn, Mikael Evergren
  • Patent number: 11725570
    Abstract: A two-stroke engine piston (1) is disclosed comprising a piston top (3), a mantle surface (5), a stratified scavenging channel (7) in the mantle surface (5), and a weight reduction space (9) arranged between the piston top (3) and the stratified scavenging channel (7). The weight reduction space (9) has a largest first axial extent (a1) at the mantle surface (5) and a second axial extent (a2) radially inside the mantle surface (5), and wherein the second axial extent (a2) is greater than the largest first axial extent (a1). The present disclosure further relates to an engine (30), a hand-held tool (40), and a method of manufacturing an engine piston (1).
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: August 15, 2023
    Assignee: HUSQVARNA AB
    Inventors: Henrik Assarsson, Johan Lönn
  • Publication number: 20230128697
    Abstract: A crankshaft (1) for a crankcase scavenged two stroke piston engine (2) is disclosed. The crankshaft (1) is configured to rotate around a rotation axis (ax) during operation. The crankshaft (1) comprises a crankpin (3) configured to move in a crank plane (cp) during operation, and a first and a second counterweight (5, 7) arranged on either side (S1, S2) of the crank plane (cp). The first counterweight (5) has a first outer radius (r1) measured from the rotation axis (ax) and the second counterweight (7) has a second outer radius (r2) measured from the rotation axis (ax). The first outer radius (r1) is smaller than the second outer radius (r2). The present disclosure further relates to a power unit (10), a crankcase scavenged two stroke piston engine (2), and a hand-held power tool (20).
    Type: Application
    Filed: March 16, 2021
    Publication date: April 27, 2023
    Inventors: Patrik Sigurdh, Anders Hansson, Per-Arne Järnland, Johan Lönn, Mikael Evergreen
  • Publication number: 20220049642
    Abstract: A two-stroke engine piston (1) is disclosed comprising a piston top (3), a mantle surface (5), a stratified scavenging channel (7) in the mantle surface (5), and a weight reduction space (9) arranged between the piston top (3) and the stratified scavenging channel (7). The weight reduction space (9) has a largest first axial extent (a1) at the mantle surface (5) and a second axial extent (a2) radially inside the mantle surface (5), and wherein the second axial extent (a2) is greater than the largest first axial extent (a1). The present disclosure further relates to an engine (30), a hand-held tool (40), and a method of manufacturing an engine piston (1).
    Type: Application
    Filed: March 2, 2020
    Publication date: February 17, 2022
    Inventors: Henrik Assarsson, Johan Lönn