Patents by Inventor Annegrete Hoffmann

Annegrete Hoffmann 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).

  • Transdermal therapeutic system, its use and production process
    Patent number: 6264977
    Abstract: A therapeutic system for supplying active substances to the skin consists of a backing layer remote from the skin, with at least one active substance depot. The depot may consist of a fluid active substance or a fluid composition comprising an active substance delivery control matrix. There is also included an adhesive fixing device for fixing the therapeutic system on the skin. The therapeutic system is characterized in that the active substance depots (14) consist of at least one adjuvant having a supporting and distributing function by being provided with a planar textile material completely surrounded by matrix (12).
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: July 24, 2001
    Assignee: LTS Lohmann Therapie-Systeme GmbH & Co. KG
    Inventor: Annegrete Hoffmann
  • Transdermal therapeutic system, its use and production process
    Patent number: 6139868
    Abstract: A therapeutic system for supplying active substances to the skin consists of a backing layer remote from the skin, with at least one active substance depot. The depot may consist of a fluid active substance or a fluid composition comprising an active substance delivery control matrix. There is also included an adhesive fixing device for fixing the therapeutic system on the skin. The therapeutic system is characterized in that the active substance depots (14) consist of at least one adjuvant having a supporting and distributing function by being provided with a planar textile material completely surrounded by matrix (12).
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 31, 2000
    Assignee: LTS Lohmann Therapie-Systeme GmbH & Co. KG
    Inventor: Annegrete Hoffmann
  • Transdermal therapeutic system, its use and production process
    Patent number: 6126963
    Abstract: A therapeutic system for supplying active substances to the skin consists of a backing layer remote from the skin, with at least one active substance depot. The depot may consist of a fluid active substance or a fluid composition comprising an active substance delivery control matrix. There is also included an adhesive fixing device for fixing the therapeutic system on the skin. The therapeutic system is characterized in that the active substance depots (14) consist of at least one adjuvant having a supporting and distributing function by being provided with a planar textile material completely surrounded by matrix (12).
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 3, 2000
    Assignee: LTS Lohmann Therapie-Systeme GmbH & Co. KG
    Inventor: Annegrete Hoffmann
  • Transdermal therapeutic system, its use and production process
    Patent number: 6117448
    Abstract: A therapeutic system for supplying active substances to the skin consists of a backing layer remote from the skin, with at least one active substance depot. The depot may consist of a fluid active substance or a fluid composition comprising an active substance delivery control matrix. There is also included an adhesive fixing device for fixing the therapeutic system on the skin. The therapeutic system is characterized in that the active substance depots (14) consist of at least one adjuvant having a supporting and distributing function by being provided with a planar textile material completely surrounded by matrix (12).
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 12, 2000
    Assignee: LTS Lohmann Therapie-Systeme GmbH & Co. KG
    Inventor: Annegrete Hoffmann
  • Transdermal therapeutic system, its use and production process
    Patent number: 6110488
    Abstract: A therapeutic system for supplying active substances to the skin consists of a backing layer remote from the skin, with at least one active substance depot. The depot may consist of a fluid active substance or a fluid composition comprising an active substance delivery control matrix. There is also included an adhesive fixing device for fixing the therapeutic system on the skin. The therapeutic system is characterized in that the active substance depots (14) consist of at least one adjuvant having a supporting and distributing function by being provided with a planar textile material completely surrounded by matrix (12).
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 29, 2000
    Assignee: LTS Lohmann Therapie-Systeme GmbH & Co. KG
    Inventor: Annegrete Hoffmann
  • Transdermal therapeutic system
    Patent number: 5820876
    Abstract: A therapeutic system for supplying active substances to the skin consists of a backing layer remote from the skin, with at least one active substance depot. The depot may consist of a fluid active substance or a fluid composition comprising an active substance delivery control matrix. There is also included an adhesive fixing device for fixing the therapeutic system on the skin. The therapeutic system is characterized in that the active substance depots (14) consist of at least one adjuvant having a supporting and distributing function by being provided with a planar textile material completely surrounded by matrix (12).
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 13, 1998
    Assignee: LTS Lohmann Therapie-Systeme GmbH & Co. KG
    Inventor: Annegrete Hoffmann
  • Plaster used as therapeutic system for the administration of active substances to the skin which exhibits a graduated active substance release, process for the production of the plaster and the use thereof
    Patent number: 5176915
    Abstract: The present invention relates to a plaster used as therapeutic system for the administration of active substances to the skin exhibiting an graduated active substance release, to the process for the production of such a plaster, and to the use for the local or systemic dermal adminstration of active substances in the human or veterinary medicine, or in cosmetics.
    Type: Grant
    Filed: June 20, 1991
    Date of Patent: January 5, 1993
    Assignee: LTS Lohmann
    Inventor: Annegrete Hoffmann
  • Transdermal therapeutic system
    Patent number: RE37934
    Abstract: A therapeutic system for supplying active substances to the skin consists of a backing layer remote from the skin, with at least one active substance depot. The depot may consist of a fluid active substance or a fluid composition comprising an active substance delivery control matrix. There is also included an adhesive fixing device for fixing the therapeutic system on the skin. The therapeutic system is characterized in that the active substance depots (14) consist of at least one adjuvant having a supporting and distributing function by being provided with a planar textile material completely surrounded by matrix (12).
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: December 10, 2002
    Assignee: LTS Lohmann Therapie-Systeme AG
    Inventor: Annegrete Hoffmann