Patents by Inventor Gregor Cevc

Gregor Cevc 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: 7175850
    Abstract: A formulation comprising molecular arrangements capable of penetrating pores in a barrier, owing to penetrant adaptability, despite the fact that the average diameter of said pores is smaller than the average penetrant diameter, provided that the penetrants can transport agents or else enable agent permeation through the pores after penetrants have entered pores, characterized in that the formulation comprises at least one consistency builder in an amount that increases the formulation to maximally 5 Nm/s so that spreading over, and retention at, the application area is enabled and/or at least one antioxidant in an amount that reduces the increase of oxidation index to less than 100% per 6 months and/or at least one microbicide in an amount that reduces the bacterial count of 1 million germs added per g of total mass of the formulation to less than 100 in the case of aerobic bacteria, to less than 10 in the case of entero-bacteria, and to less than 1 in the case of Pseudomonas aeruginosa or Staphilococcus aur
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: February 13, 2007
    Assignee: Idea AG
    Inventor: Gregor Cevc
  • Publication number: 20070031483
    Abstract: The invention describes combinations of at least three amphipatic substances forming aggregate suspensions in a polar liquid. Judicious choice of system components, which differ at least 2-times to 10-times in solubility, ensures said aggregates to have extended, unusually adaptable surfaces. This is probably due to simultaneous action on said aggregates of at least two more soluble substances amongst said three system components, at least one of which is an active ingredient and preferably a drug; the third component, alternatively, can take the role of a drug. The patent further deals with the use of said combinations in pharmaceutical preparations capable of transporting drugs into the body of warm blood creatures. This is made possible by the drug loading capability of said aggregates with the highly flexible and deformable coating, which renders the resulting drug carriers highly adaptable. The patent finally reveals suitable methods and favourable conditions for carrier manufacturing and application.
    Type: Application
    Filed: October 11, 2006
    Publication date: February 8, 2007
    Inventor: Gregor Cevc
  • Publication number: 20050123897
    Abstract: The invention relates to a method, a kit and a device for controlling the flux of penetrants across an adaptable semi-permeable porous barrier the method comprising the steps of: preparing a formulation by suspending or dispersing said penetrants in a polar liquid in the form of fluid droplets surrounded by a membrane-like coating of one or several layers, said coating comprising at least two kinds of forms of amphiphilic substances with a tendency to aggregate, said penetrants being able to transport agents through the pores of said barrier or to enable agent permeation through the pores of said barrier after penetrants have entered the pores, selecting a dose amount of said penetrants to be applied on a predetermined area of said barrier to control the flux of said penetrants across said barrier, and applying the selected dose amount of said formulation containing said penetrants onto said area of said porous barrier.
    Type: Application
    Filed: November 8, 2004
    Publication date: June 9, 2005
    Inventors: Gregor Cevc, Holger Richardsen, Andrea Weiland-Waibel
  • Publication number: 20040105881
    Abstract: The invention describes combinations of at least three amphipatic substances forming aggregate suspensions in a polar liquid. Judicious choice of system components, which differ at least 2-times to 10-times in solubility, ensures said aggregates to have extended, unusually adaptable surfaces. This is probably due to simultaneous action on said aggregates of at least two more soluble substances amongst said three system components, at least one of which is an active ingredient and preferably a drug; the third component, alternatively, can take the role of a drug. The patent further deals with the use of said combinations in pharmaceutical preparations capable of transporting drugs into the body of warm blood creatures. This is made possible by the drug loading capability of said aggregates with the highly flexible and deformable coating, which renders the resulting drug carriers highly adaptable. The patent finally reveals suitable methods and favourable conditions for carrier manufacturing and application.
    Type: Application
    Filed: February 4, 2003
    Publication date: June 3, 2004
    Inventors: Gregor Cevc, Ulrich Vierl
  • Publication number: 20040071767
    Abstract: The invention describes novel formulations of nonsteroidal anti-inflammatory drugs (NSAIDs) based on complex aggregates with at least three amphipatic components suspended in a suitable, e.g. pharmaceutically acceptable, polar liquid medium. A suitably ionised NSAID is one of the two, amongst said three, components that tends to destabilise lipid membranes, the other system component with such activity being typically a surfactant. In contrast, the remaining amongst said at least three amphipatic components typically forms a stable lipid membrane on it's own. An essential characteristics of the resulting, relatively large, aggregates is an improved ability to penetrate pores, in a semi-permeable barrier, at least 30%, and often much smaller than the average diameter of the complex aggregate. This enables said aggregates to mediate NSAID transport through semi-permeable barriers including mammalian skin.
    Type: Application
    Filed: February 4, 2003
    Publication date: April 15, 2004
    Inventors: Gregor Cevc, Ulrich Vierl
  • Publication number: 20030099694
    Abstract: The invention relates to a method, a kit and a device for controlling the flux of penetrants across an adaptable semi-permeable porous barrier, the method comprising the steps of: preparing a formulation by suspending or dispersing said penetrants in a polar liquid in the form of fluid droplets surrounded by a membrane-like coating of one or several layers, said coating comprising at least two kinds of forms of amphiphilic substances with a tendency to aggregate, said penerants being able to transport agents through the pores of said barrier or to enable agent permeation through the pores of said barrier after penetrants have entered the pores, selecting a dose amount of said penetrants to be applied on a predetermined area of said barrier to control the flux of said penetrants across said barrier, and applying the selected dose amount of said formulation containing said penetrants onto said area of said porous barrier.
    Type: Application
    Filed: January 4, 2002
    Publication date: May 29, 2003
    Inventors: Gregor Cevc, Holger Richardsen, Andrea Weiland-Waibel
  • Publication number: 20020064524
    Abstract: A formulation comprising molecular arrangements capable of penetrating pores in a barrier, owing to penetrant adaptability, despite the fact that the average diameter of said pores is smaller than the average penetrant diameter, provided that the penetrants can transport agents or else enable agent permeation through the pores after penetrants have entered pores, characterized in that the formulation comprises at least one consistency builder in an amount that increases the formulation to maximally 5 Nm/s so that spreading over, and retention at, the application area is enabled and/or at least one antioxidant in an amount that reduces the increase of oxidation index to less than 100% per 6 months and/or at least one microbicide in an amount that reduces the bacterial count of 1 million germs added per g of total mass of the formulation to less than 100 in the case of aerobic bacteria, to less than 10 in the case of entero-bacteria, and to less than 1 in the case of Pseudomonas aeruginosa or Staphilococcus aur
    Type: Application
    Filed: June 22, 2001
    Publication date: May 30, 2002
    Inventor: Gregor Cevc
  • Publication number: 20020048596
    Abstract: Preparation for the application of an active substance in the form of minute droplets especially liquid droplets with a membrane-type sheath of at least one or more layers of amphiphilic molecules or an amphiphilic carrier substance, especially for the transport of an active substance into and through natural barriers and constrictions such as skin and the like. The preparation has no point of solubilization or the preparation composition is at maximum permeation capacity far from solubilization point. The preparation contains at least two components whose solubility in suspending agents of the preparations, generally water, differs by at least a factor of 10.
    Type: Application
    Filed: June 24, 1999
    Publication date: April 25, 2002
    Inventor: GREGOR CEVC
  • Patent number: 6165500
    Abstract: The invention relates to a preparation for the application of agents in the form of minuscule droplets of fluid, in particular provided with membrane-like structures consisting of one or several layers of amphiphilic molecules, or an amphiphilic carrier substance, in particular for transporting the agent into and through natural barriers such as skin and similar materials. The preparation contains a concentration of edge active substances which amounts to up to 99 mol-% of the agent concentration which is required for the induction of droplet solubilization. Such preparations are suitable, for example, for the non-invasive applications of antidiabetics, in particular of insulin. The invention, moreover, relates to the methods for the preparation of such formulations.
    Type: Grant
    Filed: April 8, 1992
    Date of Patent: December 26, 2000
    Assignee: Idea AG
    Inventor: Gregor Cevc