Patents Assigned to Lento Co., Ltd.
  • Apparatus, coupled to hula-hoop, for measuring and displaying exercise amount
    Patent number: D442094
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: May 15, 2001
    Assignee: Lento Co., Ltd.
    Inventor: Jong-Han Seo
  • Member for use in a hula-hoop
    Patent number: D442233
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: May 15, 2001
    Assignee: Lento Co., Ltd.
    Inventor: Jong Han Seo
  • Hula-hoop
    Patent number: D442234
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: May 15, 2001
    Assignee: Lento Co., Ltd.
    Inventor: Jong Han Seo
  • Member for use in a hula-hoop
    Patent number: D443002
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: May 29, 2001
    Assignee: Lento Co., Ltd.
    Inventor: Jong Han Seo
  • Hula-hoop
    Patent number: D445146
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: July 17, 2001
    Assignee: Lento Co., Ltd.
    Inventor: Jong Han Seo
  • Member for use in a hula-hoop
    Patent number: D445463
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: July 24, 2001
    Assignee: Lento Co., Ltd.
    Inventor: Jong Han Seo
  • Hula-hoop
    Patent number: D450097
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: November 6, 2001
    Assignee: Lento Co., Ltd.
    Inventor: Jong Han Seo