Patents by Inventor Kjell I. Mases

Kjell I. Mases 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).

  • Pair of welding helmet visor flanges
    Patent number: D524992
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: July 11, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Rutger Belin, Lennart C. Fredriksson, Jonas D. Fridholm, Oskar E. Juhlin, Niklas Lilenthal, Kjell I. Mases, David Crafoord
  • Welding helmet lens frame
    Patent number: D525395
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: July 18, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Jonas D. Fridholm, Oskar E. Juhlin, Niklas Lilenthal, Kjell I. Mases, David Crafoord, Rutger Belin, Lennart C. Fredriksson
  • Side portion of a welding helmet
    Patent number: D526097
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: August 1, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Niklas Lilenthal, Kjell I. Mases, David Crafoord, Rutger Belin, Lennart C. Fredriksson, Jonas D. Fridholm, Oskar E. Juhlin
  • Side portion of a welding helmet
    Patent number: D532560
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: November 21, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Lennart C. Fredriksson, Jonas D. Fridholm, Oskar E. Juhlin, Niklas Lilenthal, Kjell I. Mases, David Crafoord, Rutger Belin
  • Top portion of a welding helmet
    Patent number: D532939
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: November 28, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Oskar E. Juhlin, Niklas Lilenthal, Kjell I. Mases, David Crafoord, Rutger Belin, Lennart C. Fredriksson, Jonas D. Fridholm
  • Ear portion of a welding helmet
    Patent number: D533313
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: December 5, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Kjell I. Mases, David Crafoord, Rutger Belin, Lennart C. Fredriksson, Jonas D. Fridholm, Oskar E. Juhlin, Niklas Lilenthal
  • Welding helmet visor
    Patent number: D539988
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: April 3, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: David Crafoord, Rutger Belin, Lennart C. Fredriksson, Jonas D. Fridholm, Oskar E. Juhlin, Niklas Lilenthal, Kjell I. Mases