Patents by Inventor Stefan Janke
Stefan Janke 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).
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Publication number: 20250091332Abstract: The invention relates to a multi-layer structure (MA) comprising: (S1) at least one first outer layer (S1) containing a polymer (P1) having a Vicat softening temperature ?149° C., preferably ?160° C., further preferably ?170° C., more preferably ?180° C., determined according to ISO 306:2004 (50N; 50° h); (S2) at least one further polymer layer (S2) containing a polymer (P2) having a Vicat softening temperature <149° C., preferably ?140° C., more preferably ?130° C. determined according to ISO 306:2004 (50N; 50°/h), preferably in a range from 120 to 148° C.; (S3) at least one core layer (S3); (S4) at least one further polymer layer (S4) containing a polymer (P2) having a Vicat softening temperature <149° C., preferably ?140° C., more preferably ?130° C., determined according to ISO 306:2004 (50N; 50° h), preferably in a range of 120 to 148° C.; (S5) at least one second outer layer (S5) containing a polymer (P1) having a Vicat softening temperature ?149° C., preferably ?160° C.Type: ApplicationFiled: July 11, 2022Publication date: March 20, 2025Inventors: Heinz Pudleiner, Georgios Tziovaras, Wieland Hovestadt, Stefan Janke, Kira Planken
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Patent number: 12195602Abstract: 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: GrantFiled: November 26, 2019Date of Patent: January 14, 2025Assignee: Covestro Deutschland AGInventors: Georgios Tziovaras, Heinz Pudleiner, Kira Planken, Stefan Janke, Christoph Koehler
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Publication number: 20240308191Abstract: The invention relates to a multilayer structure (MS) comprising (SI) at least one first polymer layer (SI) comprising ?95% by weight, preferably ?98% by weight, particularly preferably ?99% by weight, based on the total weight of the polymer layer (SI), of a polymer (PI) selected from the group consisting of a polycarbonate, a co-polycarbonate or mixtures thereof having a Vicat softening temperature?149° C., preferably ?160° C., Further preferably ?170° C.; more preferably ?180° C., determined according to ISO 360:2004 (50N; 50° /h); (S2) at least one further polymer layer (S2) having a Vicat softening temperature<149° C., preferably ?140° C., more preferably ?130° C., determined according to ISO 306:2004 (50N; 50° /h), preferably in a range from 120° C. to 148° C.; (S3) optionally at least one third polymer layer (S3) having a Vicat softening temperature ?149° C., preferably ?160° C., further preferably ?170° C.; more preferably ?180° C., determined according to ISO 306:2004 (50N; 50° h).Type: ApplicationFiled: July 11, 2022Publication date: September 19, 2024Inventors: Heinz Pudleiner, Georgios Tziovaras, Wieland Hovestadt, Stefan Janke, Kira Planken
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Patent number: 12086666Abstract: 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: GrantFiled: December 10, 2020Date of Patent: September 10, 2024Assignees: Covestro Deutschland AG, Covestro Intellectual Property GmbH & Co. KGInventors: Heinz Pudleiner, Georgios Tziovaras, Kira Planken, Stefan Janke, Christoph Koehler, Roland Kuenzel, Daopeng Wang, Meng Feng, Yizhe Zhao
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Patent number: 12023953Abstract: 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) aType: GrantFiled: November 16, 2020Date of Patent: July 2, 2024Assignee: Covestro Intellectual Property GmbH & Co. KGInventors: Georgios Tziovaras, Roland Kuenzel, Christoph Koehler, Kira Planken, Stefan Janke, Heinz Pudleiner
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Patent number: 11731411Abstract: 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: GrantFiled: December 13, 2018Date of Patent: August 22, 2023Assignee: Covestro Deutschland AGInventors: Georgios Tziovaras, Heinz Pudleiner, Kira Planken, Stefan Janke, Christoph Koehler
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Publication number: 20230025063Abstract: 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: ApplicationFiled: December 10, 2020Publication date: January 26, 2023Inventors: Heinz PUDLEINER, Georgios TZIOVARAS, Kira PLANKEN, Stefan JANKE, Christoph KOEHLER, Roland KUENZEL, Daopeng WANG, Meng FENG, Yizhe ZHAO
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Publication number: 20230008490Abstract: 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) aType: ApplicationFiled: November 16, 2020Publication date: January 12, 2023Inventors: Georgios Tziovaras, Roland Kuenzel, Christoph Koehler, Kira Planken, Stefan Janke, Heinz Pudleiner
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Publication number: 20230002553Abstract: 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: ApplicationFiled: December 10, 2020Publication date: January 5, 2023Inventors: Heinz PUDLEINER, Georgios TZIOVARAS, Kira PLANKEN, Stefan JANKE, Christoph KOEHLER
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Publication number: 20220184988Abstract: 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: ApplicationFiled: March 3, 2020Publication date: June 16, 2022Inventors: Georgios Tziovaras, Heinz Pudleiner, Deivaraj Theivanayagam Chairman, Helge Kosthorst, Christoph Koehler, Norbert Hermanns, Kira Planken, Stefan Janke
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Patent number: 11242464Abstract: 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: GrantFiled: June 22, 2018Date of Patent: February 8, 2022Assignee: Covestro Deutschland AGInventors: Georgios Tziovaras, Ciro Piermatteo, Heinz Pudleiner, Kira Planken, Stefan Janke
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Publication number: 20210403661Abstract: 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: ApplicationFiled: November 26, 2019Publication date: December 30, 2021Inventors: Georgios Tziovaras, Heinz Pudleiner, Kira Planken, Stefan Janke, Christoph Koehler
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Publication number: 20210394485Abstract: 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: ApplicationFiled: November 12, 2019Publication date: December 23, 2021Inventors: Georgios Tziovaras, Heinz Pudleiner, Kira Planken, Stefan Janke, Christoph Koehler
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Patent number: 11198769Abstract: 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: GrantFiled: December 18, 2017Date of Patent: December 14, 2021Assignee: Covestro Deutschland AGInventors: Heinz Pudleiner, Georgios Tziovaras, Kira Planken, Stefan Janke, Christoph Köhler
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Publication number: 20210371609Abstract: 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: ApplicationFiled: November 6, 2017Publication date: December 2, 2021Inventors: Heinz Pudleiner, Georgios Tziovaras, Klaus Meyer, Kira Planken, Stefan Janke, Christopher Cooper
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Publication number: 20210147697Abstract: 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: ApplicationFiled: June 22, 2018Publication date: May 20, 2021Applicants: Covestro Deutschland AG, Covestro Deutschland AGInventors: Georgios TZIOVARAS, Ciro PIERMATTEO, Heinz PUDLEINER, Kira PLANKEN, Stefan JANKE
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Publication number: 20210001614Abstract: 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: ApplicationFiled: December 13, 2018Publication date: January 7, 2021Inventors: Georgios Tziovaras, Heinz Pudleiner, Kira Planken, Stefan Janke, Christoph Koehler
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Publication number: 20190358987Abstract: 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: ApplicationFiled: December 18, 2017Publication date: November 28, 2019Inventors: Heinz PUDLEINER, Georgios TZIOVARAS, Kira PLANKEN, Stefan JANKE, Christoph KÖHLER
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Patent number: 9968986Abstract: A thread rolling head includes a bearing housing, in which at least two profile rollers, preferably at least three, are each rotatably mounted on an eccentric shaft. A shank is coupled to the housing, and adjacent profile rollers delimit an insertion section into which a workpiece can be longitudinally inserted. The bearing housing includes two housing parts rotatable relative to each other to change the spacing between the profile rollers. An adjustment element interacts with one of the two housing parts and can rotate about the longitudinal axis thereof. Rotation of the adjustment element in a first direction causes rotation of the two housing parts in a third rotational direction, while its rotation in the second direction causes rotation of the housing parts in a fourth rotational direction counter to the third rotational direction. A display apparatus displays a change of the spacing between the profile rollers.Type: GrantFiled: December 16, 2014Date of Patent: May 15, 2018Assignee: LMT Fette Werkzeugtechnik GmbH & Co. KGInventors: Christian Gutsche, Stefan Janke, Raphael Lienau
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Publication number: 20170239708Abstract: The invention relates to a tangential thread rolling head including two rolling head arms having a thread roll rotatably mounted on an axle. The thread rolls are configured to engage with a gear and be pushed laterally into an assembled position into the rolling head arms before the installation of the axles and the axles can be pushed into a bearing bore hole of the thread rolls. The two thread rolls have identical thread profiles that are offset with respect to each other when the thread rolls are in the assembled position.Type: ApplicationFiled: February 17, 2017Publication date: August 24, 2017Inventors: Stefan Janke, Raphael Lienau, Adam Beben, Christian Gutsche