Patents by Inventor Johan Lindgren

Johan Lindgren 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).

  • Method for stabilizing the whiteness of fluorescent whitening agent(s)(FWA) included in surface-treatment size/coating slip for paper and of surface-treatment layers formed thereof
    Patent number: 9493913
    Abstract: The present invention relates to a method for increasing the whiteness stability of fluorescent whitening agent(s) (FWA) included in surface-treatment size/coating slip for paper and of the surface-treatment layers formed thereof. The method is characterized in that sorbitol is charged to the size/coating slip as a carrier.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: November 15, 2016
    Assignee: HOLMEN AB
    Inventors: Philippe Letzelter, Johan Lindgren
  • METHOD FOR STABILIZING THE WHITENESS OF FLUORESCENT WHITENING AGENT(S)(FWA) INCLUDED IN SURFACE-TREATMENT SIZE/COATING SLIP FOR PAPER AND OF SURFACE-TREATMENT LAYERS FORMED THEREOF
    Publication number: 20090281221
    Abstract: The present invention relates to a method for increasing the whiteness stability of fluorescent whitening agent(s) (FWA) included in surface-treatment size/coating slip for paper and of the surface-treatment layers formed thereof. The method is characterized in that sorbitol is charged to the size/coating slip as a carrier.
    Type: Application
    Filed: June 14, 2007
    Publication date: November 12, 2009
    Applicant: HOLMEN AB
    Inventors: Philippe Letzelter, Johan Lindgren
  • Electronic pen
    Patent number: 7239306
    Abstract: An electronic pen has a body, a cap and an actuation device. The actuation device comprises a sensor arrangement for sensing presence or absence of the cap on the body. The actuation device is operable to activate the electronic pen in response to removal of the cap from the body or in response to placement of the cap on a portion separated from a front end portion of the body. The actuation device is further operable to deactivate the electronic pen in response to placement of said cap on said body. Methods for activating and deactivating an electronic pen are also described.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: July 3, 2007
    Assignee: Anoto IP LIC Handelsbolag
    Inventors: Christer Fåhraeus, Johan Lindgren, Stefan Burström
  • Electronic pen
    Publication number: 20020175903
    Abstract: An electronic pen has a body, a cap and an actuation device. The actuation device comprises a sensor arrangement for sensing presence or absence of the cap on the body. The actuation device is operable to activate the electronic pen in response to removal of the cap from the body or in response to placement of the cap on a portion separated from a front end portion of the body. The actuation device is further operable to deactivate the electronic pen in response to placement of said cap on said body. Methods for activating and deactivating an electronic pen are also described.
    Type: Application
    Filed: May 10, 2002
    Publication date: November 28, 2002
    Inventors: Christer Fahraeus, Johan Lindgren, Stefan Burstrom
  • Wireless headset
    Patent number: D529021
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: September 26, 2006
    Assignee: GN Netcom A/S
    Inventors: Timothy Jacob Jensen, Jonas Gaarde, Johan Lindgren
  • Wireless headset
    Patent number: D566693
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: April 15, 2008
    Assignee: GN Netcom A/S
    Inventors: Timothy Jacob Jensen, Jonas Gaarde, Johan Lindgren
  • Headset
    Patent number: D571784
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: June 24, 2008
    Assignee: GN Netcom A/S
    Inventors: Timothy Jacob Jensen, Jonas Gaarde, Johan Lindgren