Patents by Inventor Paul Riccobono

Paul Riccobono 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).

  • Lavatory cleaning block
    Patent number: 5763376
    Abstract: A toilet cleaning block that releases a halogen containing sanitizing agent in a controlled, substantially constant rate for about 2 to about 4 months of constant contact with water and is then completely dissolved in the water comprises an admixture of about 50% to about 80% by weight of a halogen containing sanitizing agent, about 20% to about 40% by weight of a bulking agent such as aluminum hydroxide, about 0% to about 20% by weight sodium bicarbonate, and about 1 to about 20% by weight of a sacrificial dissolution rate regulating agent such as sodium chloride.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 9, 1998
    Assignee: Block Drug Company, Inc.
    Inventors: Kenneth Ward, Richard Dolan, Paul Riccobono
  • Lavatory cleaning block
    Patent number: 5578559
    Abstract: A toilet cleaning block that releases a halogen containing sanitizing agent in a controlled, substantially constant rate for about 2 to about 4 months of constant contact with water and is then completely dissolved in the water comprises an admixture of about 50% to about 80% by weight of a halogen containing sanitizing agent, about 20% to about 40% by weight of a bulking agent such as aluminum hydroxide and about 1 to about 20% by weight of a sacrificial dissolution rate regulating agent such as sodium chloride.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: November 26, 1996
    Assignee: Block Drug Company, Inc.
    Inventors: Richard Dolan, Paul Riccobono