Patents by Inventor Joost R. Ritman

Joost R. Ritman 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).

  • Container for holding flatware and dinnerware for serving food
    Patent number: 4648511
    Abstract: The invention relates to a container for holding flatware and dishes for use in serving meals on board an aircraft, for example, comprising a rectangular tray-shaped sectioned bottom member hinged to a cover member to form an integral case. To permit dishes holding food, particularly hot meals, to be removed from the closed container and reinserted into it, the container is provided with an opening in a side wall.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: March 10, 1987
    Inventor: Joost R. Ritman
  • Serving tray
    Patent number: D286489
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: November 4, 1986
    Inventor: Joost R. Ritman
  • Beverage cup
    Patent number: D286966
    Type: Grant
    Filed: October 5, 1983
    Date of Patent: December 2, 1986
    Inventor: Joost R. Ritman
  • Serving tray
    Patent number: D288163
    Type: Grant
    Filed: October 5, 1983
    Date of Patent: February 10, 1987
    Inventor: Joost R. Ritman
  • Dish
    Patent number: D288395
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: February 24, 1987
    Inventor: Joost R. Ritman
  • Plate
    Patent number: D288396
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: February 24, 1987
    Inventor: Joost R. Ritman
  • Dish
    Patent number: D289245
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: April 14, 1987
    Inventor: Joost R. Ritman
  • Plate
    Patent number: D289246
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: April 14, 1987
    Inventor: Joost R. Ritman
  • Plate
    Patent number: D289594
    Type: Grant
    Filed: October 5, 1983
    Date of Patent: May 5, 1987
    Inventor: Joost R. Ritman
  • Dish
    Patent number: D289717
    Type: Grant
    Filed: October 5, 1983
    Date of Patent: May 12, 1987
    Inventor: Joost R. Ritman
  • Dish
    Patent number: D289843
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: May 19, 1987
    Inventor: Joost R. Ritman
  • Cup
    Patent number: D290324
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: June 16, 1987
    Inventor: Joost R. Ritman
  • Cup
    Patent number: D290325
    Type: Grant
    Filed: July 18, 1984
    Date of Patent: June 16, 1987
    Inventor: Joost R. Ritman
  • Plate
    Patent number: D291757
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: September 8, 1987
    Inventor: Joost R. Ritman
  • Tumbler or similar article
    Patent number: D293536
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: January 5, 1988
    Inventor: Joost R. Ritman
  • Plate
    Patent number: D295130
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: April 12, 1988
    Inventor: Joost R. Ritman
  • Dish
    Patent number: D297196
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: August 16, 1988
    Inventor: Joost R. Ritman
  • Cup
    Patent number: D297493
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: September 6, 1988
    Inventor: Joost R. Ritman
  • Dish
    Patent number: D298000
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: October 11, 1988
    Inventor: Joost R. Ritman
  • Covered serving tray for food containers or the like
    Patent number: D300101
    Type: Grant
    Filed: August 16, 1985
    Date of Patent: March 7, 1989
    Inventor: Joost R. Ritman