Patents by Inventor Keith M. Schonbrun

Keith M. Schonbrun 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).

  • Patent number: 4980215
    Abstract: The absorbent package of this invention includes a mono-layer, flexible, nonwoven fibrous web, heat sealed to itself and an absorbent sealed within the fibrous web. The fibrous web is permeable to both gas and water. The fibrous web includes a first phase and a second phase. The first phase includes long cellulosic fibers which comprises from about 65 to about 70% of the overall fibrous web. The second phase includes synthetic and thermoplastic fibers which comprise from about 30 to about 35% of the overall fibrous web. The fibrous web further includes a plurality of pores with tortuously configured pore channels. The pores have a pore size range from a high of about 0.00466 microns to a low of about 0.00099 microns to provide absolute containment of the absorbent within the package.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: December 25, 1990
    Assignee: Aldine Technologies, Inc.
    Inventor: Keith M. Schonbrun