Patents by Inventor Robert L. Blackadar

Robert L. Blackadar 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).

  • PLUNGER DEVICE WITH TRIANGULAR BELL AND CYLINDRICAL SLEEVE
    Publication number: 20190277013
    Abstract: An improved toilet plunger for unclogging drains, comprised of a handle and a plunger head with an upper generally triangular-shaped, collapsible bell portion and a lower generally cylindrical, flexible sleeve portion. The unique shape and configuration of the bell and sleeve portions enable the improved plunger device to displace clogs with fewer attempts, and to resist device deformation, inversion, rotation, and breaking of the seal during plunging.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 12, 2019
    Inventors: Robert Cavalcanti, Kirk Morris, Robert L. Blackadar
  • Wine rack
    Patent number: D526168
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: August 8, 2006
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • In-cabinet mug holder
    Patent number: D529347
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: October 3, 2006
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Mug holder
    Patent number: D529348
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: October 3, 2006
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Spoon rest
    Patent number: D532259
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: November 21, 2006
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Banana holder
    Patent number: D533750
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: December 19, 2006
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Banana holder
    Patent number: D538109
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: March 13, 2007
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Under cabinet stemware holder
    Patent number: D538608
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: March 20, 2007
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Wine rack
    Patent number: D538609
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: March 20, 2007
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Spoon rest
    Patent number: D539102
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: March 27, 2007
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Mug holder
    Patent number: D539104
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: March 27, 2007
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Trivet
    Patent number: D545616
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: July 3, 2007
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Horizontal plate rack
    Patent number: D546609
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: July 17, 2007
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Over-the-door iron and ironing board holder
    Patent number: D547098
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: July 24, 2007
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Trivet
    Patent number: D551018
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: September 18, 2007
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Vertical plate rack
    Patent number: D551482
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: September 25, 2007
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Under shelf stemware holder
    Patent number: D553454
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: October 23, 2007
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Trivet
    Patent number: D563156
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: March 4, 2008
    Assignee: Spectrum Diversified Designs, Inc.
    Inventors: Sheldon H. Goodman, Robert L. Blackadar
  • Plunger
    Patent number: D857311
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: August 20, 2019
    Assignee: BUTLER HOME PRODUCTS, LLC
    Inventors: Robert Cavalcanti, Kirk Morris, Robert L. Blackadar