Patents by Inventor Achim Berthold

Achim Berthold 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).

  • Therapeutic system containing an active substance for the application on the skin which contains at least two polymerous layers
    Patent number: 7335378
    Abstract: Active substance-containing therapeutic system for application on the skin, comprising at least two polymer-containing layers, characterized in that the-polymers used for the different layers differ in their glass transition temperature (see FIG. 1).
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: February 26, 2008
    Assignee: LTS Lohmann Therapie-Systeme AG
    Inventor: Achim Berthold
  • Therapeutic system containing an active substance for the application on the skin which contains at least two polymerous layers
    Patent number: 7279178
    Abstract: Active substance-containing therapeutic system for application on the skin, comprising at least two polymer-containing layers, characterized in that the polymers used for the different layers differ in their glass transition temperature (see FIG. 1).
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: October 9, 2007
    Assignee: LTS Lohmann Therapie-Systems AG
    Inventor: Achim Berthold
  • Therapeutic system containing an active substance for the application on the skin which contains at least two polymerous layers
    Publication number: 20050136101
    Abstract: Active substance-containing therapeutic system for application on the skin, comprising at least two polymer-containing layers, characterized in that the-polymers used for the different layers differ in their glass transition temperature (see FIG. 1).
    Type: Application
    Filed: November 18, 2004
    Publication date: June 23, 2005
    Inventor: Achim Berthold
  • Wound dressing with a reduced accretion tendency
    Publication number: 20030104039
    Abstract: A wound dressing with reduced accretion tendency and comprising a layer (2) which is at least single-ply, is characterized in that said layer is connected to a porous membrane or semi-permeable film (1) which faces the wound.
    Type: Application
    Filed: November 18, 2002
    Publication date: June 5, 2003
    Inventors: Achim Berthold, Walter Mueller
  • Method for improving the stability of stored and/or used light-sensitive therapeutic systems or components thereof
    Publication number: 20030102246
    Abstract: A process for increasing the stability during storage and/or application of light-sensitive therapeutic systems and/or components thereof, such as active ingredients or auxiliary substances, using light-stability agents absorbing or reflecting electromagnetic waves is characterized in that absorption or reflection agents are used whose absorption or reflection spectrum comprises that wavelength range which is responsible for the instability of the light-sensitive material or components thereof.
    Type: Application
    Filed: December 3, 2002
    Publication date: June 5, 2003
    Applicant: LTS Lohmann Therapie-Systeme AG
    Inventor: Achim Berthold
  • Wound dressing for the controlled release of active substance to wounds, and process for its manufacture
    Patent number: 6399091
    Abstract: A wound dressing for the controlled release of active substance to wounds, especially of wound healing-promoting substances to slow-healing, chronic wounds, is characterized in that said wound dressing has a layered structure for the purpose of absorbing liquid, especially wound exudate, under volume increase, said layered structure at least comprising one polymer-containing layer (1), one woven fabric-like or nonwoven-like layer (2) and at least one active substance, and in that the polymer-containing layer (1) contains hydrocolloid-containing swellable hydrogel as absorbent for liquid.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: June 4, 2002
    Assignee: LTS Lohamann Therapie-Systeme AG
    Inventors: Achim Berthold, Walter Muller, Frank-Ulrich Flother, Rainer Naeff