Patents by Inventor Elvira Kirstgen

Elvira Kirstgen 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: 20230172845
    Abstract: The invention relates to a method for producing an active substance laminate, especially an oral active substance laminate (100), having at least one active-substance-containing layer (31), which is arranged on a substrate (20), wherein the method comprises the following steps: a) providing a substrate (20) having an upper side (21) and an underside (22); b) applying an active-substance-containing mass (24) in a gap (25) formed by a first rotating roller (26) and a second rotating roller (27); c) transporting the substrate (20) to the second roller (27) by means of a third rotating roller (28) in such a way that the active-substance-containing mass (24) is applied to the upper side (21) of the substrate (20) by the second roller (27) in the form of an active-substance-containing layer (31); d) transporting an intermediate laminate (30), formed by the substrate (20) and the active-substance-containing layer (31), to a drying device (40); and e) drying the intermediate laminate (30), especially the active-su
    Type: Application
    Filed: February 2, 2023
    Publication date: June 8, 2023
    Inventors: Michael HOFFMANN, Elvira KIRSTGEN, Ralf-Ingo STEIN, Sandra WIEDERSBERG, Thomas STÜMPER
  • Patent number: 11628141
    Abstract: The invention relates to a method for producing an active substance laminate, especially an oral active substance laminate (100), having at least one active-substance-containing layer (31), which is arranged on a substrate (20), wherein the method comprises the following steps: a) providing a substrate (20) having an upper side (21) and an underside (22); b) applying an active-substance-containing mass (24) in a gap (25) formed by a first rotating roller (26) and a second rotating roller (27); c) transporting the substrate (20) to the second roller (27) by means of a third rotating roller (28) in such a way that the active-substance-containing mass (24) is applied to the upper side (21) of the substrate (20) by the second roller (27) in the form of an active-substance-containing layer (31); d) transporting an intermediate laminate (30), formed by the substrate (20) and the active-substance-containing layer (31), to a drying device (40); and e) drying the intermediate laminate (30), especially the active-su
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: April 18, 2023
    Assignee: LTS LOHMANN THERAPIE-SYSTEME AG
    Inventors: Michael Hoffmann, Elvira Kirstgen, Ralf-lngo Stein, Sandra Wiedersberg, Thomas Stumper
  • Publication number: 20200030233
    Abstract: The invention relates to a method for producing an active substance laminate, especially an oral active substance laminate (100), having at least one active-substance-containing layer (31), which is arranged on a substrate (20), wherein the method comprises the following steps: a) providing a substrate (20) having an upper side (21) and an underside (22); b) applying an active-substance-containing mass (24) in a gap (25) formed by a first rotating roller (26) and a second rotating roller (27); c) transporting the substrate (20) to the second roller (27) by means of a third rotating roller (28) in such a way that the active-substance-containing mass (24) is applied to the upper side (21) of the substrate (20) by the second roller (27) in the form of an active-substance-containing layer (31); d) transporting an intermediate laminate (30), formed by the substrate (20) and the active-substance-containing layer (31), to a drying device (40); and e) drying the intermediate laminate (30), especially the active-su
    Type: Application
    Filed: April 5, 2018
    Publication date: January 30, 2020
    Inventors: Michael HOFFMANN, Elvira KIRSTGEN, Ralf-lngo STEIN, Sandra WIEDERSBERG, Thomas STUMPER
  • Patent number: 6531149
    Abstract: An active substance-containing patch for controlled release of estradiol or its pharmaceutically acceptable derivatives, alone or in combination with gestagens, to the human or animal skin, consisting of a backing layer, an active substance-containing reservoir connected thereto which is suitable for combined active substance release and which has been produced using pressure-sensitive adhesives, and a detachable protective layer, is characterized in that the pressure-sensitive adhesive contains wool wax or components thereof and zinc oxide.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: March 11, 2003
    Assignee: LTS Lohmann Therapie-Systeme AG
    Inventors: Elvira Kirstgen, Reinhold Meconi