Spiral Drop Patents (Class D21/459)
  • Twirler novelty
    Patent number: D527676
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: September 5, 2006
    Assignee: Exhart Environmental Systems, Inc.
    Inventors: Margaret Weiser, Isaac Weiser
  • Spinning top
    Patent number: D997259
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: August 29, 2023
    Inventor: Muhammad Junaid Akbar
  • Dice tower
    Patent number: D1014636
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: February 13, 2024
    Inventor: Zhen Yang