Patents Assigned to OTOS Optical Co., Ltd.
  • Welding mask
    Patent number: D446887
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: August 21, 2001
    Assignee: OTOS Optical Co., Ltd.
    Inventor: Huh Moon Young
  • Protective goggle
    Patent number: D478111
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: August 5, 2003
    Assignee: Otos Optical Co., Ltd.
    Inventor: Moon Young Huh
  • Welding mask
    Patent number: D481832
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: November 4, 2003
    Assignee: Otos Optical Co., Ltd.
    Inventor: Moon Young Huh
  • Welding mask
    Patent number: D482502
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: November 18, 2003
    Assignee: Otos Optical Co., Ltd.
    Inventor: Moon Young Huh
  • Welding mask
    Patent number: D482503
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: November 18, 2003
    Assignee: Otos Optical Co., Ltd.
    Inventor: Moon Young Huh
  • Welding mask
    Patent number: D393933
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: April 28, 1998
    Assignee: Otos Optical Co., Ltd.
    Inventor: Moon Young Huh
  • Welding mask
    Patent number: D394732
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: May 26, 1998
    Assignee: Otos Optical Co. Ltd.
    Inventor: Moon Young Huh