Patents by Inventor Charles John Gilfert

Charles John Gilfert 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).

  • Multi-purpose absorbent and cut-resistant sheet materials
    Patent number: 6617004
    Abstract: A multi-purpose sheet material comprising an absorbent material and a bonding material in contact with the absorbent material. The bonding material and the absorbent material are thermally bonded so that the bonding material and the absorbent material form an amalgamated layer therebetween. A fluid impermeable material is in contact with the absorbent material. The bonding material has a basis weight in the range of 4 g/m2 to about 100 g/m2 and, the sheet material exhibits a lamination efficiency of at least 10 g/m2.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: September 9, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Kirk Wallace Lake, Peter Worthington Hamilton, Nicole Alisa Renee Lockett, James Edward Poland, Charles John Gilfert, Mario Alonso
  • Multi-purpose absorbent and cut-resistant sheet materials
    Publication number: 20030064194
    Abstract: A multi-purpose sheet material comprising an absorbent material and a bonding material in contact with the absorbent material. The bonding material and the absorbent material are thermally bonded so that the bonding material and the absorbent material form an amalgamated layer therebetween. A fluid impermeable material is in contact with the absorbent material. The bonding material has a basis weight in the range of 4 g/m2 to about 100 g/m2 and, the sheet material exhibits a lamination efficiency of at least 10 g/m2.
    Type: Application
    Filed: July 13, 2001
    Publication date: April 3, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Kirk Wallace Lake, Peter Worthington Hamilton, Nicole Alise Renee Lockett, James Edward Poland, Charles John Gilfert, Mario Alonso
  • Stam-assisted paper impregnation
    Patent number: 6537616
    Abstract: The present invention relates to a process of using steam to achieve simultaneous impregnation and drying of lignocellulosic material to improve the strength of lignocellulosic material and to reduce the number of serial processing steps. The steam may be either indigenously generated by way of a heated press or heated nip, or the steam may be externally applied.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: March 25, 2003
    Assignee: Paper Technology Foundation Inc.
    Inventors: Charles John Gilfert, Dimitris Ioannis Collias, Steven Michael Schennum
  • Steam-assisted paper impregnation
    Patent number: 6537615
    Abstract: The present invention relates to a process of using steam to achieve simultaneous impregnation and drying of lignocellulosic material to improve the strength of lignocellulosic material and to reduce the number of serial processing steps. The steam may be either indigenously generated by way of a heated press or heated nip, or the steam may be externally applied.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: March 25, 2003
    Assignee: Paper Technology Foundation Inc.
    Inventors: Charles John Gilfert, Dimitris Ioannis Collias, Steven Michael Schennum
  • STEAM-ASSISTED PAPER IMPREGNATION
    Publication number: 20010041222
    Abstract: The present invention relates to a process of using steam to achieve simultaneous impregnation and drying of lignocellulosic material to improve the strength of lignocellulosic material and to reduce the number of serial processing steps. The steam may be either indigenously generated by way of a heated press or heated nip, or the steam may be externally applied.
    Type: Application
    Filed: November 12, 1998
    Publication date: November 15, 2001
    Inventors: CHARLES JOHN GILFERT, DIMITRIS IOANNIS COLLIAS, STEVEN MICHAEL SCHENNUM
  • STEAM-ASSISTED PAPER IMPREGNATION
    Publication number: 20010041223
    Abstract: The present invention relates to a process of using steam to achieve simultaneous impregnation and drying of lignocellulosic material to improve the strength of lignocellulosic material and to reduce the number of serial processing steps. The steam may be either indigenously generated by way of a heated press or heated nip, or the steam may be externally applied.
    Type: Application
    Filed: January 19, 1999
    Publication date: November 15, 2001
    Inventors: CHARLES JOHN GILFERT, DIMITRIS IOANNIS COLLIAS, STEVEN MICHAEL SCHENNUM