Patents by Inventor William Prindle

William Prindle 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).

  • Potato masher
    Patent number: 5014921
    Abstract: A potato masher integrally formed in a single piece made of polyetherimide.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: May 14, 1991
    Assignee: Robinson Knife Manufacturing Co., Inc.
    Inventors: Robert B. Skerker, William Prindle
  • Kitchen tool
    Patent number: 5014434
    Abstract: A kitchen tool integrally formed in one piece made of a polyetherimide, having a capacity for withstanding high temperatures and facilitating microwave use.
    Type: Grant
    Filed: January 2, 1990
    Date of Patent: May 14, 1991
    Assignee: Robinson Knife Manufacturing Co., Inc.
    Inventors: Robert Skerker, William Prindle
  • Cooking apparatus for suspending a food product
    Patent number: 5008508
    Abstract: A cooking apparatus for suspending a food product while cooking for use in high heat and microwave environments.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: April 16, 1991
    Assignee: Robinson Knife Manufacturing Co., Inc.
    Inventors: Robert B. Skerker, William Prindle
  • Cooking apparatus for roasting food
    Patent number: 4996404
    Abstract: An apparatus for suspending a food product, such as meats and the like while cooking comprised of two planar interlocking grids that allow for easy assembly and storage and allow for use in high heat and microwave environments.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: February 26, 1991
    Assignee: Robinson Knife Manufacturing Co., Inc.
    Inventors: Robert B. Skerker, William Prindle
  • Kitchen tool
    Patent number: 4937942
    Abstract: A kitchen tool integrally formed in one piece made of a polyetherimide, having a capacity for withstanding high temperatures and facilitating microwave use.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: July 3, 1990
    Assignee: Robinson Knife Manufacturing Co., Inc.
    Inventors: Robert Skerker, William Prindle
  • Book stand
    Patent number: D440787
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: April 24, 2001
    Assignee: Scott Resources
    Inventor: William Prindle
  • Turner
    Patent number: D312561
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: December 4, 1990
    Assignee: Robinson Knife Manufacturing Co., Inc.
    Inventors: Robert Skerker, William Prindle
  • Spatula
    Patent number: D316213
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: April 16, 1991
    Assignee: Robinson Knife Manufacturing Co., Inc.
    Inventors: Robert Skerker, William Prindle
  • Potato masher
    Patent number: D328225
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: July 28, 1992
    Assignee: Robinson Knife Manufacturing Co., Inc.
    Inventors: Robert B. Skerker, William Prindle
  • Potato mount
    Patent number: D328549
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: August 11, 1992
    Assignee: Robinson Knife Manufacturing Co., Inc.
    Inventors: Robert B. Skerker, William Prindle
  • Roast rack
    Patent number: D333236
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: February 16, 1993
    Assignee: Robinson Knife Manufacturing Co., Inc.
    Inventors: Robert B. Skerker, William Prindle
  • Vegetable steamer
    Patent number: D336727
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: June 22, 1993
    Assignee: Robinson Knife Manufacturing Co., Inc.
    Inventors: Robert B. Skerker, William Prindle
  • Kettle
    Patent number: D337233
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: July 13, 1993
    Assignee: M. Kamenstein, Inc.
    Inventor: William Prindle
  • Banana rack
    Patent number: D356906
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: April 4, 1995
    Assignee: Shahriar Dardashti
    Inventors: Shahriar Dardashti, William Prindle
  • Measuring spoon
    Patent number: D404662
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: January 26, 1999
    Assignee: Robinson Knife Company
    Inventor: William Prindle
  • Measuring cup
    Patent number: D404663
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: January 26, 1999
    Assignee: Robinson Knife Company
    Inventor: William Prindle
  • Cup
    Patent number: D777519
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: January 31, 2017
    Assignee: Stupid Good Beverage Company LLC
    Inventors: Dorian Levy, William Prindle