Patents by Inventor Georgios Tziovaras

Georgios Tziovaras 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: 20230406025
    Abstract: Provided is a layer structure, preferably a security form in a book cover, particularly preferably a security form in a book cover for identification or security documents, comprising at least a) a first radiation-engravable layer a) containing at least one polymeric material; and b) at least one further layer b) containing at least one polymeric material, preferably a thermoplastic elastomer, preferably a thermoplastic polyurethane with a hardness of ?40 Shore A according to DIN ISO 7619-1-2012-2 to ?95 Shore D according to DIN ISO 7619-1-2012-2; wherein the further layer b) overlies the first layer a) at least partly to form an overlapping region, and wherein a coherent engraving partly extends in the overlap region, preferably in the further layer b), and partly in the portion of layer a) that extends outside the overlap region, most preferably exclusively in the further layer b).
    Type: Application
    Filed: October 19, 2021
    Publication date: December 21, 2023
    Inventors: Georgios Tziovaras, Helge Kosthorst, Heinz Pudleiner, Theivanayagam Deivaraj
  • Patent number: 11731411
    Abstract: The present invention relates to a layered structure containing at least one layer (i) comprising a thermoplastic material and at least one further layer (ii) comprising a thermoplastic material bearing at least one embossed hologram, to a process for producing such layer composites and to security documents, in particular identification documents, having the layered structure according to the invention.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: August 22, 2023
    Assignee: Covestro Deutschland AG
    Inventors: Georgios Tziovaras, Heinz Pudleiner, Kira Planken, Stefan Janke, Christoph Koehler
  • Publication number: 20230025063
    Abstract: The invention is related to a layered structure with at least one layer a. of a material with a VST?85° C. comprising at least one cutting line b. reaching through the whole thickness of the layered structure surrounding at least one first portion which is extractable and reinsertable manually from the layered structure as well as a production process for such a layered structure.
    Type: Application
    Filed: December 10, 2020
    Publication date: January 26, 2023
    Inventors: Heinz PUDLEINER, Georgios TZIOVARAS, Kira PLANKEN, Stefan JANKE, Christoph KOEHLER, Roland KUENZEL, Daopeng WANG, Meng FENG, Yizhe ZHAO
  • Publication number: 20230008490
    Abstract: The invention relates to a layer structure containing: (A) a first transparent radiation-engravable layer (A) with a first surface a1) and a second surface a2) which runs substantially parallel to the surface a1), said first layer (A) having a colorful or black part-engraving, said engraving being generated by means of nonionizing electromagnetic radiation (E), on the first surface a1) which forms a first outer surface of the layer structure; (B) optionally an additional transparent radiation-engravable layer (B) with a first surface b1) facing towards the first layer (A) and another surface b2) facing away from the first layer (A) and running substantially parallel to the surface b1); and (C) optionally at least one additional transparent plastic layer (C), wherein the additional layer (C) is selectively provided in one of a group of options consisting of: on the face of the first surface a1) of the layer (A), on the face of the additional surface b2) of the additional layer (B), between the two layers (A) a
    Type: Application
    Filed: November 16, 2020
    Publication date: January 12, 2023
    Inventors: Georgios Tziovaras, Roland Kuenzel, Christoph Koehler, Kira Planken, Stefan Janke, Heinz Pudleiner
  • Publication number: 20230002553
    Abstract: The invention relates to a film containing a special polycarbonate or copolycarbonate of the formula (Ia), (I-2), (I-3) or (I-4) and to the use of the film in a security document and in a layer structure.
    Type: Application
    Filed: December 10, 2020
    Publication date: January 5, 2023
    Inventors: Heinz PUDLEINER, Georgios TZIOVARAS, Kira PLANKEN, Stefan JANKE, Christoph KOEHLER
  • Publication number: 20220241814
    Abstract: The invention relates to an improved method for the partial coloring, in particular for the color laser engraving, of plastic parts, in particular thermoplastic plastic parts, more particularly thermoplastic plastic parts that have a multi-layered structure, to the resulting partially colored, preferably color laser engraved, plastic parts, in particular thermoplastic plastic parts, and to a device for the partial coloring of plastic parts.
    Type: Application
    Filed: April 19, 2022
    Publication date: August 4, 2022
    Inventors: Georgios Tziovaras, Roland Kuenzel
  • Publication number: 20220184988
    Abstract: The present invention relates to a layer structure, preferably a hinge, particularly preferably a book cover, very particularly preferably a book cover for identification and security documents, comprising at least one outer layer a) containing at least one thermoplastic elastomer, preferably a thermoplastic polyurethane, and at least one layer b) containing at least one material selected from the group consisting of a polymer, a metal, a textile, a paper and a synthetic paper, or a combination of at least two of these, and also relates to a laminate comprising the above layer structure and to the method for producing same. The invention further relates to the use of the layer structure and/or laminate for the production of a hinge, preferably a multilayer book cover, especially for security and identification documents.
    Type: Application
    Filed: March 3, 2020
    Publication date: June 16, 2022
    Inventors: Georgios Tziovaras, Heinz Pudleiner, Deivaraj Theivanayagam Chairman, Helge Kosthorst, Christoph Koehler, Norbert Hermanns, Kira Planken, Stefan Janke
  • Patent number: 11311904
    Abstract: The invention relates to an improved method for the partial coloring, in particular for the color laser engraving, of plastic parts, in particular thermoplastic plastic parts, more particularly thermoplastic plastic parts that have a multi-layered structure, to the resulting partially colored, preferably color laser engraved, plastic parts, in particular thermoplastic plastic parts, and to a device for the partial coloring of plastic parts.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: April 26, 2022
    Assignee: COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG
    Inventors: Georgios Tziovaras, Roland Kuenzel
  • Patent number: 11242464
    Abstract: The present invention relates to an improved method for the partial colouring, in particular for the coloured laser engraving, of plastic parts, in particular thermoplastic plastic parts, more particularly thermoplastic plastic parts, comprising a layer structure, and to the resulting partially coloured, preferably coloured and laser engraved, plastic parts, in particular thermoplastic plastic parts.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: February 8, 2022
    Assignee: Covestro Deutschland AG
    Inventors: Georgios Tziovaras, Ciro Piermatteo, Heinz Pudleiner, Kira Planken, Stefan Janke
  • Publication number: 20210403661
    Abstract: The present invention relates to layer composites comprising at least one opaque layer a) and at least one transparent layer b), wherein the Vicat softening temperature B/120 determined according to ISO 306:2004 (method B120 50N; 120° C.) of layer a) is ?156° C., preferably from ?156° C. to ?250° C., particularly preferably from ?156° C. to ?230° C., and wherein the Vicat softening temperature B/120 determined according to ISO 306:2004 (method B120 50N; 120° C./h), of layer a) is higher than that of layer b), a method for producing such layer composites and security documents, preferably identification documents, comprising such a layer structure.
    Type: Application
    Filed: November 26, 2019
    Publication date: December 30, 2021
    Inventors: Georgios Tziovaras, Heinz Pudleiner, Kira Planken, Stefan Janke, Christoph Koehler
  • Publication number: 20210394485
    Abstract: The present invention relates to a layered composite comprising at least one transparent layer a) containing a thermoplastic, this transparent layer having a light transmission in the range of from ?85% to ?98% determined according to ISO 13468-2:2006-07, and an opaque layer b) containing at least one thermoplastic, characterised in that the opaque layer b) has a light transmission in the range of from ?0.1% to ?25% determined according to ISO 13468-2:2006-07, a layer thickness in the range of from ?20 ?m to ?70 ?m, preferably from ?20 ?m to ?60 ?m, particularly preferably from ?25 ?m to ?55 ?m, and at least one opening.
    Type: Application
    Filed: November 12, 2019
    Publication date: December 23, 2021
    Inventors: Georgios Tziovaras, Heinz Pudleiner, Kira Planken, Stefan Janke, Christoph Koehler
  • Patent number: 11198769
    Abstract: The present invention relates to plastic films with improved laser engraving capability, chemical resistance and mechanical stress, special embodiments of such films in the form of co-extrusion films, layer structures comprising such films, use of such films, as well as security documents, preferably identification documents, containing such films.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: December 14, 2021
    Assignee: Covestro Deutschland AG
    Inventors: Heinz Pudleiner, Georgios Tziovaras, Kira Planken, Stefan Janke, Christoph Köhler
  • Publication number: 20210371609
    Abstract: The present invention relates to a plastic film having reduced UV activity, to particular embodiments of such plastic films in the form of coextruded films, layer constructions comprising the plastic film according to the invention, and to security documents, preferably identification documents, comprising such plastic films.
    Type: Application
    Filed: November 6, 2017
    Publication date: December 2, 2021
    Inventors: Heinz Pudleiner, Georgios Tziovaras, Klaus Meyer, Kira Planken, Stefan Janke, Christopher Cooper
  • Publication number: 20210339508
    Abstract: The present invention relates to a laminate comprising at least one layer a) containing at least one thermoplastic and/or thermosetting plastic, at least one layer b) containing at least one thermoplastic polyurethane and at least one component and/or a functional unit (A) which is positioned on the at least one layer a), and wherein the least regions of the at least one thermoplastic polyurethane of layer b) are designed as a foam layer. The invention also relates to a method for manufacturing such a laminate and to the use of the laminate for manufacturing security documents, preferably identification documents, smart card smartphones, tablets, displays for smartphones, and/or displays for tablets.
    Type: Application
    Filed: September 10, 2019
    Publication date: November 4, 2021
    Inventors: Georgios TZIOVARAS, Helge KOSTHORST, Theivanayagam DEIVARAJ, Norbert HERMANNS, Heinz PUDLEINER
  • Publication number: 20210170441
    Abstract: The invention relates to an improved method for the partial coloring, in particular for the color laser engraving, of plastic parts, in particular thermoplastic plastic parts, more particularly thermoplastic plastic parts that have a multi-layered structure, to the resulting partially colored, preferably color laser engraved, plastic parts, in particular thermoplastic plastic parts, and to a device for the partial coloring of plastic parts.
    Type: Application
    Filed: August 22, 2019
    Publication date: June 10, 2021
    Inventors: Georgios Tziovaras, Roland Kuenzel
  • Publication number: 20210147697
    Abstract: The present invention relates to an improved method for the partial colouring, in particular for the coloured laser engraving, of plastic parts, in particular thermoplastic plastic parts, more particularly thermoplastic plastic parts, comprising a layer structure, and to the resulting partially coloured, preferably coloured and laser engraved, plastic parts, in particular thermoplastic plastic parts.
    Type: Application
    Filed: June 22, 2018
    Publication date: May 20, 2021
    Applicants: Covestro Deutschland AG, Covestro Deutschland AG
    Inventors: Georgios TZIOVARAS, Ciro PIERMATTEO, Heinz PUDLEINER, Kira PLANKEN, Stefan JANKE
  • Publication number: 20210001614
    Abstract: The present invention relates to a layered structure containing at least one layer (i) comprising a thermoplastic material and at least one further layer (ii) comprising a thermoplastic material bearing at least one embossed hologram, to a process for producing such layer composites and to security documents, in particular identification documents, having the layered structure according to the invention.
    Type: Application
    Filed: December 13, 2018
    Publication date: January 7, 2021
    Inventors: Georgios Tziovaras, Heinz Pudleiner, Kira Planken, Stefan Janke, Christoph Koehler
  • Patent number: 10662581
    Abstract: The present invention concerns a method for the partial dyeing, in particular for the colour laser engraving, of plastic components, in particular thermoplastic plastic components, more particularly thermoplastic plastic components, comprising a layer construction as well as the resulting partially dyed, preferably colour laser engraved plastic components, in particular thermoplastic plastic components.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: May 26, 2020
    Assignee: Covestro Deutschland AG
    Inventors: Georgios Tziovaras, Ciro Piermatteo
  • Publication number: 20200122448
    Abstract: The invention relates to heteroaromatic compounds, particularly for use in electronic devices. The invention further relates to a method for producing the compounds according to the invention and to electronic devices containing same.
    Type: Application
    Filed: May 22, 2018
    Publication date: April 23, 2020
    Inventors: Joachim PETZOLDT, Georgios TZIOVARAS, Kay LAUTWEIN, Christoph KÖHLER
  • Publication number: 20190358987
    Abstract: The present invention relates to plastic films with improved laser engraving capability, chemical resistance and mechanical stress, special embodiments of such films in the form of co-extrusion films, layer structures comprising such films, use of such films, as well as security documents, preferably identification documents, containing such films.
    Type: Application
    Filed: December 18, 2017
    Publication date: November 28, 2019
    Inventors: Heinz PUDLEINER, Georgios TZIOVARAS, Kira PLANKEN, Stefan JANKE, Christoph KÖHLER