Patents by Inventor Henrik J. Sjöman

Henrik J. Sjöman 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).

  • Hearing device containing hidden FM-receiver antenna
    Patent number: 10016306
    Abstract: Hearing protection devices that contain an FM-receiver and antenna connected to one another, each being disposed interiorly in a protective muff of the hearing device, where the antenna is molded into a plastic housing in the protective muff are described, as are methods of making protective muffs used in such a device.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: July 10, 2018
    Assignee: 3M Innovative Properties Company
    Inventor: Henrik J. Sjöman
  • HEARING DEVICE CONTAINING HIDDEN FM-RECEIVER ANTENNA
    Publication number: 20170246038
    Abstract: Hearing protection devices that contain an FM-receiver and antenna connected to one another, each being disposed interiorly in a protective muff of the hearing device, where the antenna is molded into a plastic housing in the protective muff are described, as are methods of making protective muffs used in such a device.
    Type: Application
    Filed: August 10, 2015
    Publication date: August 31, 2017
    Inventor: Henrik J. Sjöman
  • Hearing protector
    Patent number: 9131310
    Abstract: A hearing protector has two closed muffs (2) which sealingly abut against the wearer's head, so that there is formed a closed space in each muff (2) and about the user's ear. A loudspeaker (4) is disposed interiorly in the muff and has a membrane (5) whose one side is turned to face towards the user's ear, and whose opposing side is turned to face towards a closed volume which is defined by the membrane and an enclosure. In order to improve the base reproduction in listening to music, the interior of the enclosure is, via at least one hole or one duct, in communication with the ambient surroundings outside the closed space of the muff (2). In one preferred embodiment, the enclosure comprises a capsule (7) which is integrated part of the loudspeaker (4).
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: September 8, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Henrik J. Sjöman, Johan Håkansson
  • HEARING PROTECTOR
    Publication number: 20110064239
    Abstract: A hearing protector has two closed muffs (2) which sealingly abut against the wearer's head, so that there is formed a closed space in each muff (2) and about the user's ear. A loudspeaker (4) is disposed interiorly in the muff and has a membrane (5) whose one side is turned to face towards the user's ear, and whose opposing side is turned to face towards a closed volume which is defined by the membrane and an enclosure. In order to improve the base reproduction in listening to music, the interior of the enclosure is, via at least one hole or one duct, in communication with the ambient surroundings outside the closed space of the muff (2). In one preferred embodiment, the enclosure comprises a capsule (7) which is integrated part of the loudspeaker (4).
    Type: Application
    Filed: April 27, 2009
    Publication date: March 17, 2011
    Inventors: Henrik J. Sjöman, Johan Håkansson