Patents by Inventor Stephen Robert Kelly

Stephen Robert Kelly 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: 7691233
    Abstract: Temporary wet strength additives, more particularly, temporary wet strength additives comprising a polymer backbone, wherein the polymer backbone has an internal homo-crosslinking monomeric unit, a co-crosslinking monomeric unit and a cationic monomeric unit, wherein the homo-crosslinking monomeric unit is derived from a monomer having the following structure: and X is —O—,—NH—, or —NCH3—; and R2 is a substituted or unsubstituted aliphatic groups; and Y3 is —H, —CH3, or a halogen, fibrous structures including such temporary wet strength additives, sanitary tissue products containing such fibrous structures and processes for making such fibrous structures and/or such sanitary tissue product are provided.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: April 6, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Robert Lee Barcus, Khosrow Parviz Mohammadi, Angela Marie Leimbach, Stephen Robert Kelly
  • Patent number: 7258763
    Abstract: Temporary wet strength additives, more particularly, temporary wet strength additives comprising a polymer backbone, wherein the polymer backbone comprises a co-crosslinking monomeric unit, preferably a reversible co-crosslinking monomeric unit, especially in the presence of water, a homo-crosslinking monomeric units and a cationic monomeric unit, fibrous structures comprising such temporary wet strength additives, sanitary tissue products comprising such fibrous structures and processes for making such fibrous structures and/or such sanitary tissue product. Such fibrous structures and sanitary tissue products exhibit high initial wet tensile strength and improved flushability and/or reduced-clogging properties.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: August 21, 2007
    Assignee: The Procter + Gamble Company
    Inventors: Robert Lee Barcus, Khosrow Parviz Mohammadi, Angela Marie Leimbach, Stephen Robert Kelly
  • Patent number: 7217339
    Abstract: Fibrous structures and/or sanitary tissue products comprising such fibrous structures, more particularly to fibrous structures and/or sanitary tissue products that exhibit improved wet strength properties, especially temporary wet strength properties, as compared to fibrous structures and/or sanitary tissue products that contain conventional wet strength additives.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: May 15, 2007
    Assignee: The Procter & Gamble Company
    Inventors: Khosrow Parviz Mohammadi, Robert Lee Barcus, Angela Marie Leimbach, Stephen Robert Kelly
  • Patent number: 7125469
    Abstract: Temporary wet strength resins, more particularly, temporary wet strength resins comprising a polymer backbone, wherein the polymer backbone comprises a co-crosslinking monomeric unit, preferably a reversible co-crosslinking monomeric unit, especially in the presence of water, a homo-crosslinking monomeric units and a cationic monomeric unit, fibrous structures comprising such temporary wet strength resins, sanitary tissue products comprising such fibrous structures and processes for making such fibrous structures and/or such sanitary tissue product. Such fibrous structures and sanitary tissue products exhibit high initial wet tensile strength and improved flushability properties.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: October 24, 2006
    Assignee: The Procter & Gamble Company
    Inventors: Robert Lee Barcus, Khosrow Parviz Mohammadi, Angela Marie Leimbach, Stephen Robert Kelly
  • Patent number: 6517849
    Abstract: This application relates to antiviral tissue paper comprising pyrrolidone carboxylic acid as an antiviral agent. When added to tissue paper pyrrolidone carboxylic acid has the ability to kill certain strains of viruses which come into contact with the tissue. In addition to its antiviral efficacy, pyrrolidone carboxylic acid tends to be mild to the skin thus mitigating the potential for skin irritation. Furthermore, upon transfer to the skin, pyrrolidone carboxylic acid assists in retention of the natural moisture of the skin while continuing to kill deleterious viruses.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: February 11, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Geoffrey Eugene Seger, Kimberly Ann Biedermann, Kamilah Apewaiye Gbadamosi, Stephen Robert Kelly, Paul Thomas Weisman
  • Patent number: 6475501
    Abstract: This application relates to antiviral tissue paper comprising a water soluble metal ion as an antiviral agent. The water soluble metal ion has at least one hydroxide ion formation constant wherein the hydroxide ion formation constant is at least 1012. When added to tissue the water soluble metal ion has the ability to kill certain strains of viruses which come into contact with the tissue.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: November 5, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Stephen Robert Kelly, Kamilah Apewaiye Gbadamosi, Geoffrey Eugene Seger, Kimberly Ann Biedermann, Jeffrey Michael Morgan, David Frederick Swaile
  • Publication number: 20020064542
    Abstract: A tissue product having an antiviral composition. The antiviral composition includes a film-forming water soluble carrier(s) and one or more antiviral agents. Optional ingredients such as surfactants, thickening agents, dyes, and scents may also be included. The tissue product may include an optional moisture barrier. The moisture barrier may be treated with the antiviral composition. A process for making the tissue product is also disclosed.
    Type: Application
    Filed: June 29, 1999
    Publication date: May 30, 2002
    Inventors: GEORGE ENDEL DECKNER, KAMILAH APEWAIYE GBADAMOSI, STEPHEN ROBERT KELLY, THOMAS JAMES KLOFTA
  • Patent number: 6241850
    Abstract: A soft tissue product and method for making a soft tissue product which exhibits resistance to limiting while maintaining physical strength integrity. The process includes debonding and mechanically treating papermaking fibers, forming a tissue web and drying the tissue web. The process allows for the use of high levels of debonding agents and hardwood fibers.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: June 5, 2001
    Assignee: The Procter & Gamble Company
    Inventor: Stephen Robert Kelly
  • Patent number: 6132803
    Abstract: A tissue which has at least one fibrous ply. A hydrophobically treated foam stratum is placed on at least one of the fibrous plies in order to prevent the penetration of moisture through the tissue. A hydrophobically treated foam can also be impregnated into one or more fibrous plies in order to provide a barrier to the penetration of moisture through the tissue. The invention also comprises a process for making tissue with a foam moisture barrier.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: October 17, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Stephen Robert Kelly, Jay Kiyoshi Sato
  • Patent number: 5968853
    Abstract: A tissue which has at least one fibrous ply. A hydrophobically treated foam stratum is placed on at least one of the fibrous plies in order to prevent the penetration of moisture through the tissue. A hydrophobically treated foam can also be impregnated into one or more fibrous plies in order to provide a barrier to the penetration of moisture through the tissue. The invention also comprises a process for making tissue with a foam moisture barrier.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: October 19, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Stephen Robert Kelly, Jay Kiyoshi Sato