Patents by Inventor Mark Dawson Midkiff

Mark Dawson Midkiff 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).

  • Dispersible absorbent products and methods of manufacture and use
    Patent number: 6670521
    Abstract: A dispersible absorbent product comprises a mechanically weakened fibrous web. The dispersible absorbent product can absorb a sufficient amount of fluid without becoming overloaded and suffering from leakage, and is dispersible using a standard toilet. The mechanically weakened regions of the web enhance the dispersibility of the product. Additionally, the dispersible absorbent products may be pre-moistened with a composition. The pre-moistened products are stable in storage, easily dispersible down a toilet, and deliver cleaning, conditioning, and like benefits. Methods of making such dispersible absorbent products are also disclosed.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: December 30, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Isao Noda, Sarah Beth Gross, Hugh Joseph O'Donnell, James Cameron Horney, Mark Dawson Midkiff
  • Dispersible absorbent products and methods of manufacture and use
    Patent number: 6613954
    Abstract: Provided are highly dispersible absorbent products, comprising an absorbent structure and preferably a water soluble barrier layer, wherein the absorbent products have a high rate of dispersibility, can exhibit low residual by-product in urinals upon flushing, resist strikethrough of absorbed fluid onto the hand of the user, and can absorb a sufficient amount of fluid without becoming overloaded or leaking. In one embodiment, provided is a ring rolled cellulosic sheet having a water soluble polymeric film laminated thereto. Also provided is a method of making such dispersible absorbent products comprising mechanically weakening an absorbent structure. Also provided are packaged products comprising a package and a plurality of dispersible absorbent products or articles.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: September 2, 2003
    Assignee: The Procter & Gamble Company
    Inventors: James Cameron Horney, Mark Dawson Midkiff
  • Dispersible absorbent products and methods of manufacture and use
    Publication number: 20010051796
    Abstract: A dispersible absorbent product comprises a mechanically weakened fibrous web. The dispersible absorbent product can absorb a sufficient amount of fluid without becoming overloaded and suffering from leakage, and is dispersible using a standard toilet. The mechanically weakened regions of the web enhance the dispersibility of the product. Additionally, the dispersible absorbent products may be pre-moistened with a composition. The pre-moistened products are stable in storage, easily dispersible down a toilet, and deliver cleaning, conditioning, and like benefits. Methods of making such dispersible absorbent products are also disclosed.
    Type: Application
    Filed: April 20, 2001
    Publication date: December 13, 2001
    Inventors: Isao Noda, Sarah Beth Gross, Hugh Joseph O'Donnell, James Cameron Horney, Mark Dawson Midkiff