Patents by Inventor Barbara Ann Ludwig

Barbara Ann Ludwig 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).

  • Drapeable absorbent article
    Patent number: 7753896
    Abstract: An absorbent article having a silhouette including a first end, a second end, wherein the second end being in opposite relation to the first end, and a first longitudinally extending edge opposed to a second longitudinally extending edge, the first and second longitudinally extending edges connecting the first end and the second end; and a layered portion having a body-facing layer and a garment-facing layer, wherein the absorbent article is drapeable.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: July 13, 2010
    Assignee: McNeil-PPC, Inc.
    Inventors: Santos H. Collado, Maria Elaine P. de Velez, Jutta S. Haarer, Barbara Ann Ludwig, Ana Maria Elena R. Marcelo, H. Michael Moscherosch, Rita Renee Pilate, Jennifer L. Sturgeon
  • Drapeable absorbent article
    Publication number: 20030114822
    Abstract: An absorbent article having a silhouette including a first end, a second end, wherein the second end being in opposite relation to the first end, and a first longitudinally extending edge opposed to a second longitudinally extending edge, the first and second longitudinally extending edges connecting the first end and the second end; and a layered portion having a body-facing layer and a garment-facing layer, wherein the absorbent article is drapeable.
    Type: Application
    Filed: December 19, 2001
    Publication date: June 19, 2003
    Inventors: Santos H. Collando, Maria Elaine P. de Velez, Jutta S. Haarer, Barbara Ann Ludwig, Ana Maria Elena R. Marcelo, H. Michael Moscherosch, Rita Renee Pilate, Jennifer L. Sturgeon
  • High pressure embossing and paper produced thereby
    Patent number: 6030690
    Abstract: A process for high pressure embossing a single ply of paper and the paper produced thereby. The embossing process requires two rolls, a pattern roll 30 and an anvil roll 32. The rolls are loaded together at a pressure of at least 1000 psi at the nip. A single ply of paper is embossed in the nip. The embossments of the paper do not extend outwardly beyond the thickness of the paper to have any out-of-plane deformation. The embossments are typically glassined. The resulting paper has an aesthetically pleasing appearance, without undue loss of tensile strength from the embossing process.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: February 29, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Kevin Benson McNeil, Linda Rae Scherzinger, Thomas Anthony Hensler, Rebecca Ann Miller, Barbara Ann Ludwig
  • Disposable paper products with indicator means
    Patent number: 5902669
    Abstract: Disposable paper products, such as paper toweling, are provided with an indicator means which is disposed on said disposable paper product in a discontinuous or combination discontinuous/continuous pattern. The indicator means gives a visually recognizable signal to a user that desirable properties of the disposable paper product are maintained, even after the disposable paper product has become wetted with a substantially transparent aqueous liquid. The wet gray scale difference for the disposable paper product of the present invention is at least about 64 gray scale units when the disposable paper product is wetted with a substantially transparent aqueous liquid.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: May 11, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Mark John Steinhardt, Donn Nathan Boatman, Frederick Martin Joffe, Barbara Ann Ludwig, Barry Robert Silber, Paul Dennis Trokhan
  • Disposable paper products with indicator means
    Patent number: 5834099
    Abstract: Disposable paper products, such as paper toweling, are provided with an indicator means which is disposed on said disposable paper product in a discontinuous or combination discontinuous/continuous pattern. The indicator means gives a visually recognizable signal to a user that desirable properties of the disposable paper product are maintained, even after the disposable paper product has become wetted with a substantially transparent aqueous liquid. The wet gray scale difference for the disposable paper product of the present invention is at least about 64 gray scale units when the disposable paper product is wetted with a substantially transparent aqueous liquid.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: November 10, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Mark John Steinhardt, Donn Nathan Boatman, Frederick Martin Joffe, Barbara Ann Ludwig, Barry Robert Silber, Paul Dennis Trokhan