Patents by Inventor John D. Shoemaker, Jr.

John D. Shoemaker, Jr. 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).

  • Personal hygiene articles for absorbing fluids
    Patent number: 6063982
    Abstract: A personal hygiene article having an increased capacity for absorbing fluids is disclosed. The article contains a surface layer containing at least one fluid permeable material and a sublayer containing at least about 10 wt. % of a fluffed wood pulp for retaining fluids. Articles of the invention have improved absorbance properties under re-wet conditions even in the absence of organic cross-linking agents or fiber modifiers.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: May 16, 2000
    Assignee: International Paper Company (from Thomas L. Wiesemann and John J. Shoemaker Jr.)
    Inventors: Bruce D. Martin, Thomas L. Wiesemann, John D. Shoemaker, Jr.
  • Personal hygiene articles for absorbing fluids
    Patent number: 5766159
    Abstract: A personal hygiene article having an increased capacity for absorbing fluids is disclosed. The article contains a surface layer containing at least one fluid permeable material and a sublayer containing at least about 10 wt. % of a fluffed wood pulp for retaining fluids. Articles of the invention have improved absorbance properties under re-wet conditions even in the absence of organic cross-linking agents or fiber modifiers.
    Type: Grant
    Filed: July 6, 1995
    Date of Patent: June 16, 1998
    Assignee: International Paper Company
    Inventors: Bruce D. Martin, Thomas L. Wiesemann, John D. Shoemaker, Jr.
  • Bleaching of cellulosic pulp fibers with chlorine dioxide in the presence of a vanadium compound
    Patent number: 4039374
    Abstract: Cellulosic pulp fibers are bleached with chlorine dioxide in the presence of a vanadium compound containing vanadium in the +4 or +5 oxidation state so as to attain a final pH of less than about 3.0 whereby brightness reversion of the resultant bleached pulp fibers is inhibited.
    Type: Grant
    Filed: August 29, 1975
    Date of Patent: August 2, 1977
    Assignee: Union Camp Corporation
    Inventors: Howard Deutsch, John D. Shoemaker, Jr.