Patents by Inventor Sergej STENZEL

Sergej STENZEL 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).

  • Resorbable crosslinked form stable membrane for use outside the oral cavity
    Patent number: 10835640
    Abstract: The invention relates to resorbable crosslinked form stable membrane which comprises a composite layer of collagen material and inorganic ceramic particles containing 1.5 to 3.5 weight parts of inorganic ceramic for 1 weight part of collagen material, sandwiched between two layers of elastic pretensed collagen material (collagen material that has been stretched such as to be in the linear/elastic region of the stress-strain curve), the collagen material comprising 50-100% (w/w) collagen and 0-50% (w/w) elastin, and has shape and dimensions suitable for use in human tissue regeneration outside the oral cavity in rhinoplasty, postlateral spinal fusion or orbital reconstruction.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: November 17, 2020
    Assignee: Geistlich Pharma AG
    Inventors: Niklaus Stiefel, Sergej Stenzel, Raphael Kaufmann
  • Resorbable crosslinked form stable membrane
    Patent number: 10300171
    Abstract: A resorbable crosslinked form stable membrane containing a composite layer of collagen material and inorganic ceramic particles containing 1.5 to 3.5 weight parts of inorganic ceramic for 1 weight part of collagen material, sandwiched between two layers of elastic pretensed collagen material, wherein the elastic pretensed collagen material is collagen material that has been stretched such as to be in the linear/elastic region of the stress-strain curve, the collagen material comprising 50-100% (w/w) collagen and 0-50% (w/w) elastin.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: May 28, 2019
    Assignee: Geistlich Pharma AG
    Inventors: Niklaus Stiefel, Sergej Stenzel, Raphael Kaufmann
  • RESORBABLE CROSSLINKED FORM STABLE MEMBRANE FOR USE OUTSIDE THE ORAL CAVITY
    Publication number: 20180344902
    Abstract: The invention relates to resorbable crosslinked form stable membrane which comprises a composite layer of collagen material and inorganic ceramic particles containing 1.5 to 3.5 weight parts of inorganic ceramic for 1 weight part of collagen material, sandwiched between two layers of elastic pretensed collagen material (collagen material that has been stretched such as to be in the linear/elastic region of the stress-strain curve), the collagen material comprising 50-100% (w/w) collagen and 0-50% (w/w) elastin, and has shape and dimensions suitable for use in human tissue regeneration outside the oral cavity in rhinoplasty, postlateral spinal fusion or orbital reconstruction.
    Type: Application
    Filed: June 1, 2018
    Publication date: December 6, 2018
    Applicant: GEISTLICH PHARMA AG
    Inventors: Niklaus STIEFEL, Sergej STENZEL, Raphael KAUFMANN
  • RESORBABLE CROSSLINKED FORM STABLE MEMBRANE
    Publication number: 20180256785
    Abstract: A resorbable crosslinked form stable membrane containing a composite layer of collagen material and inorganic ceramic particles containing 1.5 to 3.5 weight parts of inorganic ceramic for 1 weight part of collagen material, sandwiched between two layers of elastic pretensed collagen material, wherein the elastic pretensed collagen material is collagen material that has been stretched such as to be in the linear/elastic region of the stress-strain curve, the collagen material comprising 50-100% (w/w) collagen and 0-50% (w/w) elastin.
    Type: Application
    Filed: May 10, 2018
    Publication date: September 13, 2018
    Applicant: GEISTLICH PHARMA AG
    Inventors: Niklaus STIEFEL, Sergej STENZEL, Raphael KAUFMANN