Patents by Inventor Nadine Hagedorn

Nadine Hagedorn 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).

  • Dermal filler based on crosslinked hyaluronic acid, calcium phosphate material particles and carboxymethyl cellulose, a process for preparing same and uses thereof
    Patent number: 11672750
    Abstract: The present invention relates to a dermal filler composition based on crosslinked hyaluronic acid, calcium phosphate material particles and carboxymethyl cellulose. The present invention further provides a process for preparing said dermal filler composition, and its use in cosmetic treatments such as for improvement of skin quality.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: June 13, 2023
    Assignee: MERZ PHARMA GMBH & CO. KGAA
    Inventors: Roland Stragies, Nadine Hagedorn, Lubin Belkovi
  • Method for preparing hyaluronic acid dermal fillers, dermal fillers obtained thereby and their use
    Patent number: 11324672
    Abstract: The present invention generally relates to the field of hyaluronic acid (HA) dermal fillers, and more specifically to methods for preparing crosslinked HA-based compositions in the form of a gel comprising high-temperature dialysis and/or crosslinking in the presence of phosphate and an alkaline metal halide salt. The present invention further relates to crosslinked HA-based gel compositions prepared by said methods and their use as dermal fillers in aesthetic applications such as wrinkle treatments.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: May 10, 2022
    Assignee: Merz Pharma GmbH & Co. KGaA
    Inventors: Nadine Hagedorn, Roland Stragies, Lubin Belkovi, Radia El-Banna
  • DERMAL FILLER BASED ON CROSSLINKED HYALURONIC ACID, CALCIUM PHOSPHATE MATERIAL PARTICLES AND CARBOXYMETHYL CELLULOSE, A PROCESS FOR PREPARING SAME AND USES THEREOF
    Publication number: 20210030657
    Abstract: The present invention relates to a dermal filler composition based on crosslinked hyaluronic acid, calcium phosphate material particles and carboxymethyl cellulose. The present invention further provides a process for preparing said dermal filler composition, and its use in cosmetic treatments such as for improvement of skin quality.
    Type: Application
    Filed: April 12, 2019
    Publication date: February 4, 2021
    Inventors: Roland STRAGIES, Nadine HAGEDORN, Lubin BELKOVI
  • METHOD FOR PREPARING HYALURONIC ACID DERMAL FILLERS, DERMAL FILLERS OBTAINED THEREBY AND THEIR USE
    Publication number: 20190269582
    Abstract: The present invention generally relates to the field of hyaluronic acid (HA) dermal fillers, and more specifically to methods for preparing crosslinked HA-based compositions in the form of a gel comprising high-temperature dialysis and/or crosslinking in the presence of phosphate and an alkaline metal halide salt. The present invention further relates to crosslinked HA-based gel compositions prepared by said methods and their use as dermal fillers in aesthetic applications such as wrinkle treatments.
    Type: Application
    Filed: November 2, 2017
    Publication date: September 5, 2019
    Applicant: Merz Pharma GmbH & Co. KGaA
    Inventors: Nadine HAGEDORN, Roland STRAGIES, Lubin BELKOVI, Radia EL-BANNA
  • Dermal filler based on crosslinked hyaluronic acid and carboxymethyl cellulose lubricant
    Patent number: 10335512
    Abstract: The present invention relates to injectable dermal filler compositions in the form of a gel, comprising hyaluronic acid (HA), carboxymethyl cellulose (CMC) and, optionally, microparticles such as calcium hydroxyapatite (CaHAP) microparticles. The injectable dermal filler compositions have improved rheological properties while at the same time have low extrusion forces. The present invention further relates to a method for preparing such injectable dermal filler compositions and their use for cosmetic and therapeutic purposes.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: July 2, 2019
    Assignee: MERZ PHARMA GMBH & CO. KGAA
    Inventors: Nadine Hagedorn, Roland Stragies, Franck Villain, Lubin Belkovi, Radia El-Banna
  • Dye solution
    Patent number: 9872927
    Abstract: The invention relates to a water-based biocompatible non-cytotoxic preparation for the selective staining of internal limiting membrane (ILM) and/or epiretinal membranes (ERM) in the human or animal eye, and to a kit containing said water-based preparation according to the invention.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: January 23, 2018
    Assignee: FLUORON GMBH
    Inventors: Christian Lingenfelder, Bastian Theisinger, Wilfried Hiebl, Nadine Hagedorn
  • DERMAL FILLER BASED ON CROSSLINKED HYALURONIC ACID AND CARBOXYMETHYL CELLULOSE LUBRICANT
    Publication number: 20170333596
    Abstract: The present invention relates to injectable dermal filler compositions in the form of a gel, comprising hyaluronic acid (HA), carboxymethyl cellulose (CMC) and, optionally, microparticles such as calcium hydroxyapatite (CaHAP) microparticles. The injectable dermal filler compositions have improved rheological properties while at the same time have low extrusion forces. The present invention further relates to a method for preparing such injectable dermal filler compositions and their use for cosmetic and therapeutic purposes.
    Type: Application
    Filed: November 12, 2015
    Publication date: November 23, 2017
    Applicant: MERZ PHARMA GMBH & CO. KGAA
    Inventors: NADINE HAGEDORN, ROLAND STRAGIES, FRANCK VILLAIN, LUBIN BELKOVI, RADIA EL-BANNA
  • DYE SOLUTION
    Publication number: 20170014530
    Abstract: The invention relates to a water-based biocompatible non-cytotoxic preparation for the selective staining of internal limiting membrane (ILM) and/or epiretinal membranes (ERM) in the human or animal eye, and to a kit containing said water-based preparation according to the invention.
    Type: Application
    Filed: September 29, 2016
    Publication date: January 19, 2017
    Inventors: Christian Lingenfelder, Bastian Theisinger, Wilfried Hiebl, Nadine Hagedorn
  • Dye solution
    Patent number: 9498547
    Abstract: The invention relates to a water-based biocompatible non-cytotoxic preparation for the selective staining of internal limiting membrane (ILM) and/or epiretinal membranes (ERM) in the human or animal eye, and to a kit containing said water-based preparation according to the invention.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: November 22, 2016
    Assignee: Fluoron GMBH
    Inventors: Christian Lingenfelder, Bastian Theisinger, Wilfried Hiebl, Nadine Hagedorn
  • Preparation for use in opthalmology and retinal surgery
    Patent number: 8865131
    Abstract: The invention relates to a dye-containing preparation for use in ophthalmology and retinal surgery.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: October 21, 2014
    Assignee: Fluoron GmbH
    Inventors: Nadine Hagedorn, Stanislao Rizzo, Eduardo Rodrigues
  • DYE SOLUTION
    Publication number: 20110190728
    Abstract: The invention relates to a water-based biocompatible non-cytotoxic preparation for the selective staining of internal limiting membrane (ILM) and/or epiretinal membranes (ERM) in the human or animal eye, and to a kit containing said water-based preparation according to the invention.
    Type: Application
    Filed: December 18, 2009
    Publication date: August 4, 2011
    Inventors: Christian Lingenfelder, Bastian Theisinger, Wilfried Hiebl, Nadine Hagedorn