Patents by Inventor Henricus Wilhelmus de Haas

Henricus Wilhelmus de Haas 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).

  • Slot machine
    Patent number: D508719
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: August 23, 2005
    Inventor: Henricus Wilhelmus de Haas
  • Gambling machine
    Patent number: D419201
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: January 18, 2000
    Assignee: Orion Casino Technology BV
    Inventor: Henricus Wilhelmus de Haas