Patents by Inventor Claus Peter Stoelzel

Claus Peter Stoelzel 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: 11938008
    Abstract: The invention relates to a disposable absorbent pant comprising a central chassis and elasticized front and rear belt. The central chassis comprises an absorbent core with an absorbent layer. The absorbent layer comprises a continuous channel formed therein.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: March 26, 2024
    Assignee: The Procter & Gamble Company
    Inventors: Carsten Heinrich Kreuzer, Ernesto Gabriel Bianchi, Bruno Johannes Ehrnsperger, Ling Tong, Claus Peter Stoelzel
  • Publication number: 20230097795
    Abstract: Disclosed is a wearable article comprising a front elastic belt region, a back elastic belt region, each of the front and back elastic belt region comprises a laminate comprising an inner sheet, an outer sheet, and a plurality of elastic members running in the transverse direction, the longitudinal dimension between adjacent elastic members forming an elastic spacing; wherein the laminate is bonded by heat at the side edges to form side seams, the side seams existing no distant than about 20 mm from the side edges, and the remainder of the laminate is substantially free of heat bonds, wherein the article has a Belt Elastic Bonding Percentage of less than about 25%, and an Individual Elastic Bonding Percentage of from about 10% to about 75%, according to the measurements herein.
    Type: Application
    Filed: December 1, 2022
    Publication date: March 30, 2023
    Inventors: Chunmin CHENG, Koichi MORIMOTO, Mark Thomas STILLWAGON, Qilei YIN, Claus Peter STOELZEL
  • Patent number: 11439544
    Abstract: A package comprising a stack of absorbent articles which are bi- or tri-folded, and each article comprises a topsheet, a backsheet, and an absorbent core between the topsheet and the backsheet. The absorbent core comprises an absorbent layer comprising a central portion, a first side portion and a second side portion, a first folding guide between the central portion and the first side portion, and a second folding guide between the central portion and the second side portion. Each side portion comprises a plurality of winglets, each winglet having a proximal side relative to a folding guide and extending outward from this proximal side. Neighboring winglets are separated by a gap between their neighboring sides. When the absorbent core is folded along the folding guides, the central portion and the side portions form a three-dimensional basin and the gaps between the winglets decrease, the neighboring sides optionally coming into contact.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: September 13, 2022
    Assignee: The Procter & Gamble Company
    Inventors: Bruno Johannes Ehrnsperger, Hans Adolf Jackels, Claus Peter Stoelzel, Christine Elisabeth Zipf, Roland Engel
  • Publication number: 20210137749
    Abstract: An absorbent core comprising a core wrap having a top layer and a bottom layer enclosing an absorbent layer comprising superabsorbent polymer, wherein the absorbent core is substantially free of cellulose fibers. The absorbent layer comprises a non-rectangular central portion having a front edge, a back edge and two longitudinally-extending side edges, wherein each side edge defines a recess along a portion of its length; a first side portion present in one of the recess and a second side portion present in the other recess, wherein each side portion comprises a proximal edge relative to the central portion and a distal edge further away from the central portion. The distal edges of the side portions are curved. The absorbent core further comprises a first folding guide between the first side portion and the central portion, and a second folding guide, and when the absorbent core is folded along the folding guides, the central portion and the side portions form a three-dimensional basin.
    Type: Application
    Filed: January 25, 2021
    Publication date: May 13, 2021
    Inventors: Bruno Johannes EHRNSPERGER, Hans Adolf JACKELS, Claus Peter STOELZEL, Christine Elisabeth ZIPF
  • Patent number: 10952909
    Abstract: An absorbent core includes a core wrap having a top layer and a bottom layer enclosing superabsorbent polymer. The absorbent core is substantially free of cellulose fibers. The absorbent layer comprises a non-rectangular central portion having a front edge, a back edge and two longitudinally-extending side edges. Each side edge defines a recess along a portion of its length; a first side portion present in one of the recess and a second side portion present in the other recess. The proximal edges of the side portions are convex; and either the distal edges of the side portions are concave so that the side portions are crescent-shaped; or the distal edges of the side portions is straight. The absorbent core further includes a first and second folding guide, and when the absorbent core is folded along the folding guides, the central portion and the side portions form a three-dimensional basin.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: March 23, 2021
    Assignee: The Procter & Gamble Company
    Inventors: Bruno Johannes Ehrnsperger, Hans Adolf Jackels, Claus Peter Stoelzel, Christine Elisabeth Zipf
  • Publication number: 20210030602
    Abstract: The invention relates to a disposable absorbent pant comprising a central chassis and elasticized front and rear belt. The central chassis comprises an absorbent core with an absorbent layer. The absorbent layer comprises a first and a second longitudinally-oriented elongate channel formed therein.
    Type: Application
    Filed: July 13, 2020
    Publication date: February 4, 2021
    Inventors: Carsten Heinrich KREUZER, Ernesto Gabriel BIANCHI, Bruno Johannes EHRNSPERGER, Ling TONG, Claus Peter STOELZEL
  • Patent number: 10893984
    Abstract: An absorbent article such as a diaper comprises a topsheet, a backsheet and an absorbent core. The absorbent layer comprises at least a longitudinally-extending central portion, and a first and second side portions disposed transversally outward of the central portion. The absorbent core further comprises first and second folding guides between the central portion and the side portions. Each side portion comprises a plurality of winglets, each winglet having a proximal side relative to a folding guide and extending outward from this proximal side, and wherein neighboring winglets are separated by a gap between their neighboring sides. The central portion and the side portions form a three-dimensional basin when the absorbent core is folded along the folding guides. The article further may comprise at least one liquid management layer substantially free of superabsorbent polymer between the topsheet and the absorbent core. The absorbent core may be substantially free of cellulose fibers.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: January 19, 2021
    Assignee: The Procter & Gamble Company
    Inventors: Bruno Johannes Ehrnsperger, Hans Adolf Jackels, Claus Peter Stoelzel, Sr., Christine Elisabeth Zipf
  • Patent number: 10869787
    Abstract: An absorbent article such as a diaper comprises a topsheet, a backsheet and an absorbent core. The absorbent layer comprises at least a longitudinally-extending central portion, and a first and second side portions disposed transversally outward of the central portion. The absorbent core further comprises first and second curved folding guides between the central portion and the side portions. Each side portion comprises a plurality of winglets, each winglet having a proximal side relative to a folding guide and extending outward from this proximal side, and wherein neighboring winglets are separated by a gap between their neighboring sides. The central portion and the side portions form a three-dimensional basin when the absorbent core is folded along the folding guides. The absorbent core is substantially free of cellulose fibers. The article further may comprise at least one liquid management layer substantially free of superabsorbent polymer between the topsheet and the absorbent core.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: December 22, 2020
    Assignee: The Procter & Gamble Company
    Inventors: Bruno Johannes Ehrnsperger, Hans Adolf Jackels, Claus Peter Stoelzel, Christine Elisabeth Zipf
  • Publication number: 20200390615
    Abstract: The invention relates to a disposable absorbent pant comprising a central chassis and elasticized front and rear belt. The central chassis comprises an absorbent core with an absorbent layer. The absorbent layer comprises a continuous channel formed therein.
    Type: Application
    Filed: July 13, 2020
    Publication date: December 17, 2020
    Inventors: Carsten Heinrich KREUZER, Ernesto Gabriel BIANCHI, Bruno Johannes EHRNSPERGER, Ling TONG, Claus Peter STOELZEL
  • Publication number: 20200000647
    Abstract: A package comprising a stack of absorbent articles which are bi- or tri-folded, and each article comprises a topsheet, a backsheet, and an absorbent core between the topsheet and the backsheet. The absorbent core comprises an absorbent layer comprising a central portion, a first side portion and a second side portion, a first folding guide between the central portion and the first side portion, and a second folding guide between the central portion and the second side portion. Each side portion comprises a plurality of winglets, each winglet having a proximal side relative to a folding guide and extending outward from this proximal side. Neighboring winglets are separated by a gap between their neighboring sides. When the absorbent core is folded along the folding guides, the central portion and the side portions form a three-dimensional basin and the gaps between the winglets decrease, the neighboring sides optionally coming into contact.
    Type: Application
    Filed: September 12, 2019
    Publication date: January 2, 2020
    Inventors: Bruno Johannes EHRNSPERGER, Hans Adolf JACKELS, Claus Peter STOELZEL, Christine Elisabeth ZIPF, Roland ENGEL
  • Patent number: 10456305
    Abstract: A package comprising a stack of absorbent articles which are bi- or tri-folded, and each article comprises a topsheet, a backsheet, and an absorbent core between the topsheet and the backsheet. The absorbent core comprises an absorbent layer comprising a central portion, a first side portion and a second side portion, a first folding guide between the central portion and the first side portion, and a second folding guide between the central portion and the second side portion. Each side portion comprises a plurality of winglets, each winglet having a proximal side relative to a folding guide and extending outward from this proximal side. Neighboring winglets are separated by a gap between their neighboring sides. When the absorbent core is folded along the folding guides, the central portion and the side portions form a three-dimensional basin and the gaps between the winglets decrease, the neighboring sides optionally coming into contact.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: October 29, 2019
    Assignee: The Procter & Gamble Company
    Inventors: Bruno Johannes Ehrnsperger, Hans Adolf Jackels, Claus Peter Stoelzel, Sr., Christine Elisabeth Zipf, Roland Engel
  • Patent number: 10137040
    Abstract: An absorbent article, such as a diaper, comprising a topsheet, a backsheet and an absorbent core. The absorbent layer comprises a longitudinally-extending central portion, and a first and second side portions disposed transversally outward of the central portion. The absorbent core further comprises first and second folding guides between the central portion and the side portions. The central portion and the side portions form a three-dimensional basin when the absorbent core is folded along the folding guides. The article further comprises at least one liquid management layer substantially free of superabsorbent polymer between the topsheet and the absorbent core. The liquid management layer comprises a central portion, first and second side portions, and first and second folding guides which are at least partially superposed with the folding guides of the absorbent core.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: November 27, 2018
    Assignee: The Procter & Gamble Company
    Inventors: Bruno Johannes Ehrnsperger, Hans Adolf Jackels, Claus Peter Stoelzel, Christine Elisabeth Zipf
  • Publication number: 20160235596
    Abstract: An absorbent article such as a diaper comprises a topsheet, a backsheet and an absorbent core. The absorbent layer comprises at least a longitudinally-extending central portion, and a first and second side portions disposed transversally outward of the central portion. The absorbent core further comprises first and second folding guides between the central portion and the side portions. The central portion and the side portions form a three-dimensional basin when the absorbent core is folded along the folding guides. The article further comprises at least one liquid management layer which may be at least partially disposed between the topsheet and the absorbent core. The liquid management layer does not extend outwardly beyond the folding guides. The liquid management layer may be a carded, resin-bonded nonwoven layer.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 18, 2016
    Inventors: Bruno Johannes EHRNSPERGER, Hans Adolf JACKELS, Claus Peter STOELZEL, SR., Christine Elisabeth ZIPF
  • Publication number: 20160235602
    Abstract: An absorbent article, such as a diaper, comprising a topsheet, a backsheet and an absorbent core. The absorbent layer comprises a longitudinally-extending central portion, and a first and second side portions disposed transversally outward of the central portion. The absorbent core further comprises first and second folding guides between the central portion and the side portions. The central portion and the side portions form a three-dimensional basin when the absorbent core is folded along the folding guides. The article further comprises at least one liquid management layer substantially free of superabsorbent polymer between the topsheet and the absorbent core. The liquid management layer comprises a central portion, first and second side portions, and first and second folding guides which are at least partially superposed with the folding guides of the absorbent core.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 18, 2016
    Inventors: Bruno Johannes EHRNSPERGER, Hans Adolf JACKELS, Claus Peter STOELZEL, SR., Christine Elisabeth ZIPF
  • Publication number: 20160235604
    Abstract: An absorbent article such as a diaper comprises a topsheet, a backsheet and an absorbent core. The absorbent layer comprises at least a longitudinally-extending central portion, and a first and second side portions disposed transversally outward of the central portion. The absorbent core further comprises first and second folding guides between the central portion and the side portions. Each side portion comprises a plurality of winglets, each winglet having a proximal side relative to a folding guide and extending outward from this proximal side, and wherein neighboring winglets are separated by a gap between their neighboring sides. The central portion and the side portions form a three-dimensional basin when the absorbent core is folded along the folding guides. The top layer of the core wrap is bonded to the bottom layer of the core wrap through the folding guides and/or at least some of the gaps between the winglets. The absorbent core may be substantially free of cellulose fibers.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 18, 2016
    Inventors: Bruno Johannes EHRNSPERGER, Hans Adolf JACKELS, Claus Peter STOELZEL, SR., Christine Elisabeth ZIPF
  • Publication number: 20160235595
    Abstract: An absorbent core comprising a core wrap having a top layer and a bottom layer enclosing an absorbent layer comprising superabsorbent polymer, wherein the absorbent core is substantially free of cellulose fibers. The absorbent layer comprises a non-rectangular central portion having a front edge, a back edge and two longitudinally-extending side edges, wherein each side edge defines a recess along a portion of its length; a first side portion present in one of the recess and a second side portion present in the other recess, wherein each side portion comprises a proximal edge relative to the central portion and a distal edge further away from the central portion. The proximal edges of the side portions are convex; and either the distal edges of the side portions are concave so that the side portions are crescent-shaped; or the distal edges of the side portions is straight, and optionally flush with the side edges of the central layer outside the portion of the longitudinal edge defining the recesses.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 18, 2016
    Inventors: Bruno Johannes EHRNSPERGER, Hans Adolf JACKELS, Claus Peter STOELZEL, Christine Elisabeth ZIPF
  • Publication number: 20160235603
    Abstract: An absorbent article such as a diaper comprises a topsheet, a backsheet and an absorbent core. The absorbent layer comprises at least a longitudinally-extending central portion, and a first and second side portions disposed transversally outward of the central portion. The absorbent core further comprises first and second curved folding guides between the central portion and the side portions. Each side portion comprises a plurality of winglets, each winglet having a proximal side relative to a folding guide and extending outward from this proximal side, and wherein neighboring winglets are separated by a gap between their neighboring sides. The central portion and the side portions form a three-dimensional basin when the absorbent core is folded along the folding guides. The absorbent core is substantially free of cellulose fibers. The article further may comprise at least one liquid management layer substantially free of superabsorbent polymer between the topsheet and the absorbent core.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 18, 2016
    Inventors: Bruno Johannes EHRNSPERGER, Hans Adolf JACKELS, Claus Peter STOELZEL, SR., Christine Elisabeth ZIPF
  • Publication number: 20160235594
    Abstract: An absorbent article such as a diaper comprises a topsheet, a backsheet and an absorbent core. The absorbent layer comprises at least a longitudinally-extending central portion, and a first and second side portions disposed transversally outward of the central portion. The absorbent core further comprises first and second folding guides between the central portion and the side portions. Each side portion comprises a plurality of winglets, each winglet having a proximal side relative to a folding guide and extending outward from this proximal side, and wherein neighboring winglets are separated by a gap between their neighboring sides. The central portion and the side portions form a three-dimensional basin when the absorbent core is folded along the folding guides. The article further may comprise at least one liquid management layer substantially free of superabsorbent polymer between the topsheet and the absorbent core. The absorbent core may be substantially free of cellulose fibers.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 18, 2016
    Inventors: Bruno Johannes EHRNSPERGER, Hans Adolf JACKELS, Claus Peter STOELZEL, SR., Christine Elisabeth ZIPF
  • Publication number: 20160235605
    Abstract: An absorbent article such as a diaper comprises a topsheet, a backsheet and an absorbent core. The absorbent layer comprises at least a longitudinally-extending central portion, and a first and second side portions disposed transversally outward of the central portion. The absorbent core further comprises first and second folding guides between the central portion and the side portions. Each side portion comprises a plurality of winglets, each winglet having a proximal side relative to a folding guide and extending outward from this proximal side, and wherein neighboring winglets are separated by a gap between their neighboring sides. The gaps between the winglets comprise at least one gap which has a substantially constant width and at least one gap which has a generally triangular shape. The central portion and the side portions form a three-dimensional basin when the absorbent core is folded along the folding guides.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 18, 2016
    Inventors: Bruno Johannes EHRNSPERGER, Hans Adolf JACKELS, Claus Peter STOELZEL, SR., Christine Elisabeth ZIPF
  • Publication number: 20160235597
    Abstract: A package comprising a stack of absorbent articles which are bi- or tri-folded, and each article comprises a topsheet, a backsheet, and an absorbent core between the topsheet and the backsheet. The absorbent core comprises an absorbent layer comprising a central portion, a first side portion and a second side portion, a first folding guide between the central portion and the first side portion, and a second folding guide between the central portion and the second side portion. Each side portion comprises a plurality of winglets, each winglet having a proximal side relative to a folding guide and extending outward from this proximal side. Neighboring winglets are separated by a gap between their neighboring sides. When the absorbent core is folded along the folding guides, the central portion and the side portions form a three-dimensional basin and the gaps between the winglets decrease, the neighboring sides optionally coming into contact.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 18, 2016
    Inventors: Bruno Johannes EHRNSPERGER, Hans Adolf JACKELS, Claus Peter STOELZEL, SR., Christine Elisabeth ZIPF, Roland ENGEL