Patents by Inventor Andrij Pich

Andrij Pich 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).

  • Publication number: 20220275155
    Abstract: The invention relates to a polyphosphazene produced by a method comprising the steps a) and b): a) converting an in particular cyclical phosphazene by means of phenol in the presence of a base; b) further converting by means of a special aromatic diphenol in the presence of a base, wherein the molar ratio of phenol used to cyclical phosphazene used is in the range from 3.5:1 to 1:1. The invention also relates to a method for producing the polyphosphazene and to a molding compound containing the polyphosphazene and a thermoplastic polymer.
    Type: Application
    Filed: August 27, 2020
    Publication date: September 1, 2022
    Inventors: Maxime Paven, Vera Taschner, Sven Hobeika, Thomas Eckel, Stamo Mentizi, Igor Pochorovski, Andrij Pich, Ayse Deniz, Sven Buschmann
  • Patent number: 10869750
    Abstract: AN endovascular stent graft including a hydrogel capable of retarded swelling when coming into contact with blood upon implantation in a patient is provided. Methods for the treatment of aneurysms and the prevention of ischemic neurological damage, in particular spinal cord damage, in patients receiving aneurysm repair procedures, using said endovascular stent grafts is also provided.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: December 22, 2020
    Assignee: Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen
    Inventors: Andreas Greiner, Stefan Jockenhövel, Andrij Pich, Larissa Hussmann, Valentine Gesché
  • Publication number: 20200078161
    Abstract: AN endovascular stent graft including a hydrogel capable of retarded swelling when coming into contact with blood upon implantation in a patient is provided. Methods for the treatment of aneurysms and the prevention of ischemic neurological damage, in particular spinal cord damage, in patients receiving aneurysm repair procedures, using said endovascular stent grafts is also provided.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 12, 2020
    Inventors: Andreas GREINER, Stefan JOCKENHÖVEL, Andrij PICH
  • Publication number: 20180035663
    Abstract: The invention relates to a plant protection and/or plant growth promotion system, comprising at least one anchor peptide for increased binding to a plant part, a support function, which is indirectly or directly bound to the anchor peptide, and an active substance for protecting the plant and/or promoting plant growth and yield.
    Type: Application
    Filed: December 22, 2015
    Publication date: February 8, 2018
    Inventors: Felix JAKOB, Andrij PICH, Kristin RÜBSAM, Uwe CONRATH, Nursen SÖZER, Ulrich SCHWANEBERG
  • Patent number: 9795540
    Abstract: The present invention relates in a first aspect to an adhesion material for use in an individual containing encapsulated phase-change material. In particular, the adhesion material is for cosmetical or medicinal use in the body of an individual. The adhesion material contains encapsulated phase-change material having preferably a phase transition temperature above 40° C., like above 55° C. The adhesion material is particularly useful for adhering elements, like dental restorations, e.g. crowns or bridge, or brackets on elements in the body of an individual, like teeth or implants. That is, the adhesion material is particularly useful for adhering material in dental applications. In another aspect, a method is provided allowing removing a bracket, a crown or bridge, from implants, abutments or teeth. Furthermore, dental implant restoration systems and kits for permanent fixation of implants allowing improved removal thereof are provided.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: October 24, 2017
    Assignee: RHEINISCH-WESTFALISCHE TECHNISCHE HOCHSCHULE AACHEN
    Inventors: Stefan Wolfart, Andrij Pich
  • Publication number: 20160058674
    Abstract: The present invention relates in a first aspect to an adhesion material for use in an individual containing encapsulated phase-change material. In particular, the adhesion material is for cosmetical or medicinal use in the body of an individual. The adhesion material contains encapsulated phase-change material having preferably a phase transition temperature above 40° C., like above 55° C. The adhesion material is particularly useful for adhering elements, like dental restorations, e.g. crowns or bridge, or brackets on elements in the body of an individual, like teeth or implants. That is, the adhesion material is particularly useful for adhering material in dental applications. In another aspect, a method is provided allowing removing a bracket, a crown or bridge, from implants, abutments or teeth. Furthermore, dental implant restoration systems and kits for permanent fixation of implants allowing improved removal thereof are provided.
    Type: Application
    Filed: November 12, 2015
    Publication date: March 3, 2016
    Applicant: RHEINISCH-WESTFALISCHE TECHNISCHE HOCHSCHULE AACHEN
    Inventors: Stefan WOLFART, Andrij PICH
  • Patent number: 9211235
    Abstract: The present invention relates in a first aspect to an adhesion material for use in an individual containing encapsulated phase-change material. In particular, the adhesion material is for cosmetical or medicinal use in the body of an individual. The adhesion material contains encapsulated phase-change material having preferably a phase transition temperature above 40° C., like above 55° C. The adhesion material is particularly useful for adhering elements, like dental restorations, e.g. crowns or bridge, or brackets on elements in the body of an individual, like teeth or implants. That is, the adhesion material is particularly useful for adhering material in dental applications. In another aspect, a method is provided allowing removing a bracket, a crown or bridge, from implants, abutments or teeth. Furthermore, dental implant restoration systems and kits for permanent fixation of implants allowing improved removal thereof are provided.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: December 15, 2015
    Assignee: Rheinisch-Westfaelische Technisch Hochschule Aachen
    Inventors: Stefan Wolfart, Andrij Pich
  • Publication number: 20140080097
    Abstract: The present invention relates in a first aspect to an adhesion material for use in an individual containing encapsulated phase-change material. In particular, the adhesion material is for cosmetical or medicinal use in the body of an individual. The adhesion material contains encapsulated phase-change material having preferably a phase transition temperature above 40° C., like above 55° C. The adhesion material is particularly useful for adhering elements, like dental restorations, e.g. crowns or bridge, or brackets on elements in the body of an individual, like teeth or implants. That is, the adhesion material is particularly useful for adhering material in dental applications. In another aspect, a method is provided allowing removing a bracket, a crown or bridge, from implants, abutments or teeth. Furthermore, dental implant restoration systems and kits for permanent fixation of implants allowing improved removal thereof are provided.
    Type: Application
    Filed: May 18, 2012
    Publication date: March 20, 2014
    Applicant: RHEINISCH-WESTFALISCHE TECHNISCHE HOCHSCHULE AACHEN
    Inventors: Stefan Wolfart, Andrij Pich
  • Publication number: 20120208086
    Abstract: A process for coating fine particles, in which the feed mixture contains: a monomer and/or an oligomer of aromatic compounds or unsaturated hydrocarbon compounds suitable for forming an electroconductive oligomer, polymer, copolymer, block copolymer or graft copolymer; at least one type of anions which (1) are and/or can be incorporated as doping ions into the structure of the conductive polymer; (2) can be discharged from said structure in the event of a potential fall of the conductive polymer (reduction); and (3) can have an anti-corrosive effect in the presence of a metallic surface; at least one type of particles; if necessary, at least one oxidising agent and water and/or at least another solvent. A coating is formed from the feed mixture on the particle surface, the feed mixture being converted by oxidation into a conductive polymer in the presence of at least one type a of mobile anti-corrosive anion.
    Type: Application
    Filed: April 4, 2012
    Publication date: August 16, 2012
    Inventors: Waldfried PLIETH, Ursula Rammelt, Nils Hebestreit, Martin Stratmann, Michael Rohwerder, Hans-Jurgen Adler, Karin Potje-Kamloth, Evelin Jahne, Andrij Pich, Herlbert Domes, Julia Schneider, Grazyna Paliwoda-Probeska
  • Publication number: 20120052307
    Abstract: A process for coating metallic surfaces with an anti-corrosive composition that contains a conductive polymer and is a dispersion that contains the at least one conductive polymer mainly or entirely in particulate form, as well as a binder system. The conductive polymer is at least one polymer based on polyphenylene, polyfuran, polyimidazole, polyphenanthrene, polypyrrole, polythiophene and polythiophenylene charged with anti-corrosive mobile anions. Alternatively, the metallic surfaces can be first coated with a dispersion based on conductive polymers in particulate form, then coated with a composition which contains a binder system.
    Type: Application
    Filed: October 20, 2011
    Publication date: March 1, 2012
    Inventors: Waldfried PLIETH, Ursula Rammelt, Nils Hebestreit, Martin Stratmann, Michael Rohwerder, Hans-Jurgen Adler, Karin Potje-Kamloth, Evelin Jahne, Andrij Pich, Heribert Domes, Julia Schneider, Grazyna Paliwoda-Probeska
  • Publication number: 20110186782
    Abstract: Method for the preparation of inorganic-NP-composite microgels is based on the reversible transfer of microgels between water and an organic solvent such as tetrahydrofuran (THF). The method is used to produce semiconductor nanocrystals, often referred to as quantum dots (QDs) which are well known for their unique optical, electrical, magnetic and catalytic properties, as the inorganic NPs, recognizing that the best quality QDs are synthesized by a high temperature process in organic media, and have their surface covered with hydrophobic ligands (such as trioctylphosphine oxide, TOPO) that render the NPs insoluble in an aqueous solution.
    Type: Application
    Filed: March 28, 2011
    Publication date: August 4, 2011
    Inventors: Mitchell Alan Winnik, Lei Shen, Andrij Pich
  • Patent number: 7914710
    Abstract: Method for the preparation of inorganic-NP-composite microgels is based on the reversible transfer of microgels between water and an organic solvent such as tetrahydrofuran (THF). The method is used to produce semiconductor nanocrystals, often referred to as quantum dots (QDs) which are well known for their unique optical, electrical, magnetic and catalytic properties, as the inorganic NPs, recognizing that the best quality QDs are synthesized by a high temperature process in organic media, and have their surface covered with hydrophobic ligands (such as trioctylphosphine oxide, TOPO) that render the NPs insoluble in an aqueous solution.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: March 29, 2011
    Inventors: Mitchell Alan Winnik, Lei Shen, Andrij Pich
  • Publication number: 20100025640
    Abstract: Method for the preparation of inorganic-NP-composite microgels is based on the reversible transfer of microgels between water and an organic solvent such as tetrahydrofuran (THF). The method is used to produce semiconductor nanocrystals, often referred to as quantum dots (QDs) which are well known for their unique optical, electrical, magnetic and catalytic properties, as the inorganic NPs, recognizing that the best quality QDs are synthesized by a high temperature process in organic media, and have their surface covered with hydrophobic ligands (such as trioctylphosphine oxide, TOPO) that render the NPs insoluble in an aqueous solution.
    Type: Application
    Filed: May 2, 2008
    Publication date: February 4, 2010
    Inventors: Andrij Pich, Mitchell Alan Winnik, Lei Shen
  • Publication number: 20080305341
    Abstract: A process is disclosed for coating metallic surfaces with an anti-corrosive composition that contains a conductive polymer and is a dispersion that contains the at least one conductive polymer mainly or entirely in particulate form, as well as a binder system. The conductive polymer is at least one polymer based on polyphenylene, polyfuran, polyimidazole, polyphenanthrene, polypyrrole, polythiophene and/or polythiophenylene charged with anti-corrosive mobile anions. Alternatively, the metallic surfaces can be first coated with a dispersion based on conductive polymers in particulate form, then coated with a composition which contains a binder system.
    Type: Application
    Filed: August 1, 2005
    Publication date: December 11, 2008
    Inventors: Waldfried Plieth, Ursula Rammelt, Nils Hebestreit, Martin Stratmann, Michael Rohwerder, Hans-Jurgen Adler, Karin Potje-Kamloth, Evelin Jahne, Andrij Pich, Heribert Domes, Julia Schneider, Grazyna Paliwoda-Probeska
  • Publication number: 20080175992
    Abstract: A process is disclosed for coating fine particles, in which the feed mixture contains: at least one monomer and/or at least one oligomer selected from monomers and/or oligomers of aromatic compounds and/or unsaturated hydrocarbon compounds suitable for forming an electroconductive oligomer, polymer, copolymer, block copolymer or graft copolymer; at least one type of anions which (1) are and/or can be incorporated as doping ions into the structure of the conductive polymer, (2) can be discharged from said structure in the event of a potential fall of the conductive polymer (reduction); and (3) can have an anticorrosive effect in the presence of a metallic surface; at least one type of particles; if necessary, at least one oxidising agent and water and/or at least another solvent. A coating is formed from the feed mixture on the particle surface, the feed mixture being converted by oxidation into a conductive polymer in the presence of at least one type of mobile anti-corrosive anions.
    Type: Application
    Filed: August 3, 2005
    Publication date: July 24, 2008
    Applicant: CHEMETALL GMBH
    Inventors: Waldfried Plieth, Ursula Rammelt, Nils Hebestreit, Martin Stratmann, Michael Rohwerder, Hans-Jürgen Adler, Karin Potje-Kamloth, Evelin Jahne, Andrij Pich, Herlbert Domes, Julia Schneider, Grazyna Paliwoda-Probeska
  • Publication number: 20080171211
    Abstract: The invention relates to a method for protecting a metal surface by means of a coating based on a corrosion-inhibiting composition containing the following component(s): a) at least one type of deposit substance comprising (1) anions incorporated by an oxidation reaction and (2) releasing at least a part of said anions for a potential variation between a redox potential of the deposit substance and an undisturbed corrosion potential of a metal surface or when a comparably small potential variation is produced on a defect, wherein said anions can inhibit a partial anodic or/and cathodic corrosion reaction or/and act as an adherence initiator, said anions comprise, respectively, an ionic radius non-impairing the migration thereof, possibly b) at least one type of matrix substance, wherein said deposit substance(s) disposed in the undisturbed areas of the coating are at least partially oxidised or at least partially doped by the anions and at least one type of the deposit substance in the disturbed areas of the
    Type: Application
    Filed: August 1, 2005
    Publication date: July 17, 2008
    Applicant: CHEMETALL GMBH
    Inventors: Waldfried Plieth, Ursula Rammelt, Nils Hebestreit, Martin Stratmann, Michael Hwerder, Hans-Jurgen Adler, Karin Potje-Kamloth, Evelin Jahne, Andrij Pich, Heribert Domes, Julia Schneider, Grazyna Paliwoda-Probeska