Patents by Inventor Irwin J. Singer

Irwin J. Singer 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).

  • Nonwoven fabric laminate with meltblown web having a gradient fiber size structure
    Patent number: 6936554
    Abstract: A nonwoven fabric laminate having a meltblown layer positioned between two spunbond nonwoven layers. The meltblown layer having a gradient fiber size structure across a thickness thereof with at least one layer of coarse meltblown fibers. In one embodiment, the gradient fiber size structure has at least two layers of meltblown fibers, for example at least one layer of fine meltblown fibers and at least one layer of coarse meltblown fibers, having a mean fiber diameter difference of at least 4.0 microns.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: August 30, 2005
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Irwin J. Singer, Bryan David Haynes