Patents by Inventor John D. Litvay

John D. Litvay 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).

  • Publication number: 20150320618
    Abstract: The embodiments provide an absorbent garment that has an absorbent core that provides for both good leakage and dryness performance. Absorbent garments having a pulpless synthetic core have comparable functionality when compared to more costly absorbent garments having an absorbent core comprising conventional amounts of fluff pulp. The absorbent garments of the embodiments incorporate features that provide good leakage performance and rewet values, while costing considerably less.
    Type: Application
    Filed: July 16, 2015
    Publication date: November 12, 2015
    Inventor: John D. Litvay
  • Patent number: 9084700
    Abstract: The embodiments provide an absorbent garment that has an absorbent core that provides for both good leakage and dryness performance. Absorbent garments having a pulpless synthetic core have comparable functionality when compared to more costly absorbent garments having an absorbent core comprising conventional amounts of fluff pulp. The absorbent garments of the embodiments incorporate features that provide good leakage performance and rewet values, while costing considerably less.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: July 21, 2015
    Inventor: John D. Litvay
  • Publication number: 20140081230
    Abstract: The embodiments provides absorbent garments, such as a disposable diaper, incontinent pad, sanitary napkin, and the like, that has an absorbent core that provides for long term dryness or an improvement in Rewet Values. Such new absorbent garments can be constructed with absorbent cores containing synthetic fibers and super absorbent particulates.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 20, 2014
    Inventor: John D. LITVAY
  • Patent number: 8283516
    Abstract: The embodiments provide an absorbent garment, such as a disposable diaper, incontinent pad, sanitary napkin, and the like, that has an absorbent core that provides for a long term dryness profile. The dryness profile reflects real world long term usage of absorbent products. Such new absorbent garments can be constructed with absorbent cores containing synthetic fibers and super absorbent particulates.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: October 9, 2012
    Inventor: John D. Litvay
  • Publication number: 20100256584
    Abstract: The embodiments provide an absorbent garment, such as a disposable diaper, incontinent pad, sanitary napkin, and the like, that has an absorbent core that provides for a long term dryness profile. The dryness profile reflects real world long term usage of absorbent products. Such new absorbent garments can be constructed with absorbent cores containing synthetic fibers and super absorbent particulates.
    Type: Application
    Filed: April 1, 2009
    Publication date: October 7, 2010
    Inventor: John D. Litvay
  • Publication number: 20100198178
    Abstract: The embodiments provide an absorbent garment that has an absorbent core that provides for both good leakage and dryness performance. Absorbent garments having a pulpless synthetic core have comparable functionality when compared to more costly absorbent garments having an absorbent core comprising conventional amounts of fluff pulp. The absorbent garments of the embodiments incorporate features that provide good leakage performance and rewet values, while costing considerably less.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 5, 2010
    Inventor: John D. Litvay
  • Patent number: 7491195
    Abstract: An absorbent article is disclosed that provides improved leakage protection. Also disclosed are methods for using and preparing absorbent articles having improved leakage protection, methods for designing articles having improved leakage protection, and methods of measuring and determining the performance index of an absorbent article. The absorbent article having improved leakage protection has a 3 variable urine only leakage performance index (PI3UL) of less than about 3.0, the PI3UL being determined in accordance with the following equation (1): PI3UL=0.046(Tc)?2.94(MS100)?0.772(AUL)??(1) where Tc is the total capacity in grams, MS100 is the percent utilization of the core upon insult with 100 ml of 0.9 wt % saline solution, and AUL is the front pad absorbency under load, expressed in grams of 0.9 wt % saline solution absorbed per gram of pad material.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: February 17, 2009
    Assignee: First Quality Retail Services LLC
    Inventor: John D. Litvay
  • Publication number: 20040220539
    Abstract: The present invention relates generally to an absorbent article, and more particularly to a fluid transfer layer including tow fibers. Such fluid transfer layers provide improved acquisition and rewet values for the absorbent article.
    Type: Application
    Filed: May 1, 2003
    Publication date: November 4, 2004
    Inventors: Frank S. Glaug, John D. Litvay
  • Publication number: 20040204697
    Abstract: The present invention relates generally to an absorbent core for an absorbent article, and more particularly to an absorbent core having at least one outer layer containing a plurality of microwells and optionally adhesives. Such absorbent cores provide the flexibility of creating precise zoning of particular properties throughout the core, and they provide improved comfort and fit.
    Type: Application
    Filed: April 11, 2003
    Publication date: October 14, 2004
    Inventor: John D. Litvay
  • Publication number: 20040138634
    Abstract: The present invention generally relates to absorbent articles and to methods for forming the absorbent articles. The absorbent articles of the present invention include an absorbent core that is disposed between a top sheet and a backsheet, whereby the articles have improved stiffness and an improved stiffness index.
    Type: Application
    Filed: January 10, 2003
    Publication date: July 15, 2004
    Inventors: John D. Litvay, Ebba A. Hansen, Pamela Peters
  • Patent number: 6682516
    Abstract: An absorbent garment having standing leg gathers with improved leak containment capabilities, a method of making the absorbent garment, and a method of determining the leak containment capability of a standing leg gather are disclosed herein. In a first aspect, a method of determining a Leg Gasketing Index is disclosed herein and includes elongating a section of a standing leg gather and measuring the resulting elastic contractile force. In a second aspect, the present invention relates to an absorbent garment including standing leg gathers having a mean Total Leg Gasketing Index over three elongation cycles of at least about 4.75 kg*mm.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: January 27, 2004
    Assignee: Paragon Trade Brands, Inc.
    Inventors: Lee W. Johnston, Kenneth John Molee, Stacy Jean Driskell, John D. Litvay
  • Publication number: 20040015142
    Abstract: The present invention generally relates to an absorbent article that includes a top sheet, a back sheet and an absorbent core disposed between the top sheet and the back sheet. The absorbent article has enhanced thermal transmittance by evincing a lower thermal resistance (clo) of less than about 1.7 watts/m2, as measured in a Thermolabo apparatus. The absorbent article of the invention preferably has a low density, low basis weight core, and it provides improved comfort.
    Type: Application
    Filed: July 15, 2003
    Publication date: January 22, 2004
    Inventors: Lee W. Johnston, John D. Litvay, Kenneth J. Molee
  • Publication number: 20030171731
    Abstract: An absorbent garment having standing leg gathers with improved leak containment capabilities, a method of making the absorbent garment, and a method of determining the leak containment capability of a standing leg gather are disclosed herein. In a first aspect, a method of determining a Leg Gasketing Index is disclosed herein and includes elongating a section of a standing leg gather and measuring the resulting elastic contractile force. In a second aspect, the present invention relates to an absorbent garment including standing leg gathers having a mean Total Leg Gasketing Index over three elongation cycles of at least about 4.75 kg*mm.
    Type: Application
    Filed: January 16, 2002
    Publication date: September 11, 2003
    Inventors: Lee W. Johnston, Kenneth John Molee, Stacy Jean Driskell, John D. Litvay
  • Publication number: 20030105442
    Abstract: The present invention generally relates to an absorbent article that includes a top sheet, a back sheet and an absorbent core disposed between the top sheet and the back sheet. The absorbent article has enhanced thermal transmittance by evincing a lower thermal resistance (clo) of less than about 1.7 watts/m2, as measured in a Thermolabo apparatus. The absorbent article of the invention preferably has a low density, low basis weight core, and it provides improved comfort.
    Type: Application
    Filed: November 30, 2001
    Publication date: June 5, 2003
    Inventors: Lee W. Johnston, John D. Litvay, Kenneth J. Molee
  • Publication number: 20010042606
    Abstract: Single-ply absorbent tissue paper wherein of the fibers incorporated in the web: (a) at least 20% by weight have a coarseness exceeding 23 mg/100 m; (b) at least about 20% by weight have a coarseness of less than about 12 mg/100 m; and (c) the weight average fiber coarseness to length ratio is less than about 8.5 mg/100 m/mm. The single-ply tissue having: a serpentine configuration; low sidedness; a basis weight of at least about 12.5 lbs. per 3000 square foot ream; specific total tensile strength between 40 and 200 g/3 inches/lb per 3000 square foot ream; a cross direction specific wet tensile strength between 2.75 and 20.0 g/3 inches/lb per 3000 square foot ream; an MD tensile to CD tensile ratio between 1.25 and 2.75; a specific geometric mean tensile stiffness between 0.5 and 3.2 g/inch/% strain per pound per 3000 square foot ream; a friction deviation less than 0.250; and a sidedness parameter less than 0.30.
    Type: Application
    Filed: June 18, 2001
    Publication date: November 22, 2001
    Inventors: Frank D. Harper, Taiye P. Oriaran, John D. Litvay
  • Patent number: 4874465
    Abstract: Tissue products, such as facial and bath tissue, are provided with improved softwood and opacity by making the products from a furnish containing fibers of a lower coarseness created by splitting the fibers in the lengthwise direction.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: October 17, 1989
    Assignee: Kimberly-Clark Corporation
    Inventors: Faith E. Cochrane, Michael J. Smith, John D. Litvay