Patents by Inventor Ludwig Brehm
Ludwig Brehm 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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Patent number: 11269293Abstract: A security document having a security element including a multilayer body with a volume hologram layer and a partial opaque layer, arranged on a surface of the volume hologram layer, which is present in a first area and is not present in a second area.Type: GrantFiled: October 25, 2019Date of Patent: March 8, 2022Assignee: LEONHARD KURZ STIFTUNG & CO. KGInventors: Klaus Pforte, Ludwig Brehm
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Patent number: 11155112Abstract: A method and a security element with a front side and a rear side lying opposite the front side, wherein the security element has two or more security features, wherein a first security feature of the two or more security features has one or more first layers and a second security feature of the two or more security features has one or more second layers, wherein the first security feature and the second security feature are in particular arranged in register with each other, wherein the first security feature generates at least one first optically variable effect and the second security feature generates at least one second optically variable effect, wherein the at least one first optically variable effect has a first color and the at least one second optically variable effect has a second color, wherein the first color and the second color differ from each other, as well as a method for producing a security element.Type: GrantFiled: February 14, 2019Date of Patent: October 26, 2021Assignees: LEONHARD KURZ STIFTUNG & CO. KG, OVD KINEGRAM AGInventors: Ludwig Brehm, Anja Cathomen, Christian Schulz, René Staub, Harald Walter
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Patent number: 11124008Abstract: A method for producing a multilayer body, with the steps: a) providing a first printed layer; b) partially applying a second printed layer to the first printed layer; c) structuring the first printed layer using the second printed layer as a mask. A multilayer body obtainable in this way and a security document with such a multilayer body.Type: GrantFiled: March 9, 2016Date of Patent: September 21, 2021Assignee: LEONHARD KURZ STIFTUNG & CO. KGInventors: Ludwig Brehm, Klaus Pforte, Patrick Kramer, Karin Forster
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Patent number: 10926571Abstract: A method for producing a multilayer body, as well as a multilayer body produced thereby. A single- or multi-layered first decorative ply is applied to a carrier ply with a first and a second side. A metal layer is applied to the side of the first decorative ply facing away from the carrier ply and structured such that the metal layer is provided with a first layer thickness in one or more first zones and is provided with a second layer thickness different from the first layer thickness in one or more second zones, wherein in particular the second layer thickness is equal to zero. A single- or multi-layered second decorative ply is applied to the side of the metal layer facing away from the first decorative ply and structured using the metal layer as mask such that the first or second decorative ply is at least partially removed in the first or second zones.Type: GrantFiled: June 25, 2018Date of Patent: February 23, 2021Assignee: LEONHARD KURZ STIFTUNG & CO. KGInventors: Ludwig Brehm, Tibor Mannsfeld, Juri Attner, Thorsten Schaller
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Publication number: 20210031553Abstract: A method and a security element with a front side and a rear side lying opposite the front side, wherein the security element has two or more security features, wherein a first security feature of the two or more security features has one or more first layers and a second security feature of the two or more security features has one or more second layers, wherein the first security feature and the second security feature are in particular arranged in register with each other, wherein the first security feature generates at least one first optically variable effect and the second security feature generates at least one second optically variable effect, wherein the at least one first optically variable effect has a first color and the at least one second optically variable effect has a second color, wherein the first color and the second color differ from each other, as well as a method for producing a security element.Type: ApplicationFiled: February 14, 2019Publication date: February 4, 2021Inventors: Ludwig BREHM, Anja CATHOMEN, Christian SCHULZ, René STAUB, Harald WALTER
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Patent number: 10882351Abstract: A method for producing a multilayer body, with the steps of: a) providing a substrate film with a replication layer; b) molding a surface relief appearing to the observer in the form of a three-dimensional free-form surface, which is formed in particular by structures with a lens-like design generating a magnifying, demagnifying or distorting effect, into a surface of the replication layer; c) applying a first metal layer to the surface of the replication layer forming the surface relief; d) wet-chemically applying an at least partially transparent spacer layer to the metal layer; e) applying a second metal layer to the spacer layer.Type: GrantFiled: January 11, 2016Date of Patent: January 5, 2021Assignees: LEONHARD KURZ Stiftung & Co. KG, OVD KINEGRAM AGInventors: Harald Walter, Ludwig Brehm, Sebastian Mader, Wayne Robert Tompkin, Eser Alper Unal
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Patent number: 10850551Abstract: A method for producing a multi-layer body, in particular a security element, in which a partial first layer or partial first layer system is produced on a substrate, wherein the partial first layer or partial first layer system is present in a first partial area and not in a second partial area. Subsequently, a partial second layer or partial second layer system is produced, wherein the partial second layer or partial second layer system is present in a third partial area and not in a fourth partial area, and wherein the third partial area overlaps with the first and second partial areas. Finally, the partial first layer or partial first layer system is structured as a mask using the partial second layer or partial second layer system.Type: GrantFiled: April 3, 2018Date of Patent: December 1, 2020Assignees: LEONHARD KURZ Stiftung & Co. KG, OVD KINEGRAM AGInventors: Rene Staub, Ludwig Brehm, Patrick Kramer, Rouven Spiess, Karin Forster
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Publication number: 20200057410Abstract: A security document having a security element including a multilayer body with a volume hologram layer and a partial opaque layer, arranged on a surface of the volume hologram layer, which is present in a first area and is not present in a second area.Type: ApplicationFiled: October 25, 2019Publication date: February 20, 2020Inventors: Klaus Pforte, Ludwig Brehm
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Patent number: 10488819Abstract: The invention relates to a multilayer body with a volume hologram layer and a partial opaque layer, arranged on a surface of the volume hologram layer, which is present in a first area and is not present in a second area. The invention furthermore relates to a method for the production of such a multilayer body, as well as a security element and security document with such a multilayer body.Type: GrantFiled: November 19, 2015Date of Patent: November 26, 2019Assignee: LEONHARD KURZ STIFTUNG & CO. KGInventors: Klaus Pforte, Ludwig Brehm
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Patent number: 10195889Abstract: An optically variable element has first and second diffraction gratings which are high-frequency and therefore act reflectively into the zero diffraction order. Either a first color is generated by the first diffraction grating at a particular angle of rotation and a particular angle of illumination and simultaneously a second color, different from the first color, is generated by the second diffraction grating or a visible color is generated essentially only by the first diffraction grating at a first angle of rotation and a visible color is generated essentially only by the second diffraction grating at a second angle of rotation.Type: GrantFiled: May 6, 2014Date of Patent: February 5, 2019Assignees: Leonhard Kurz Stiftung & Co. KG, OVD Kinegram AGInventors: Ludwig Brehm, Sebastian Mader, Andreas Schilling, Wayne Robert Tompkin, Harald Walter
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Patent number: 10179472Abstract: The invention concerns a process for producing a film element having mutually registered metallic layers (11, 16) and a film element which can be produced by such a process. A first metallic layer (11) provided on a first surface of a flexible single-layer or multi-layer carrier film (10) and a masking layer (13) provided on the second surface of the carrier film (10), opposite to the first surface, are structured in accurate register relationship with each other by means of mutually synchronized structuring procedures. After structuring of the first metallic layer (11) and the masking layer (13) one or more further layers are applied to the first metallic layer (11). Applied to the one or more further layers (15) is a second metallic layer (16) to which a first photoactivatable layer (17) is applied.Type: GrantFiled: September 8, 2016Date of Patent: January 15, 2019Assignee: Leonhard Kurz Stiftung & Co. KGInventors: Ludwig Brehm, Haymo Katschorek, Norbert Laus
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Publication number: 20180326775Abstract: In a process for producing a multilayer body, an HRI layer made of a material having a high refractive index is applied to at least part of the surface area of a substrate. At least one partial region of the HRI layer is then physically removed from the substrate again by treatment with an alkaline solution. Additionally specified is a multilayer body that can be obtained by such a process.Type: ApplicationFiled: April 10, 2018Publication date: November 15, 2018Inventors: Rene Staub, Ludwig Brehm, Juri Attner, Michael Hoffmann, Peter Seeholzer
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Publication number: 20180304667Abstract: A method for producing a multilayer body, as well as a multilayer body produced thereby. A single- or multi-layered first decorative ply is applied to a carrier ply with a first and a second side. A metal layer is applied to the side of the first decorative ply facing away from the carrier ply and structured such that the metal layer is provided with a first layer thickness in one or more first zones and is provided with a second layer thickness different from the first layer thickness in one or more second zones, wherein in particular the second layer thickness is equal to zero. A single- or multi-layered second decorative ply is applied to the side of the metal layer facing away from the first decorative ply and structured using the metal layer as mask such that the first or second decorative ply is at least partially removed in the first or second zones.Type: ApplicationFiled: June 25, 2018Publication date: October 25, 2018Inventors: Ludwig BREHM, Tibor MANNSFELD, Juri ATTNER, Thorsten SCHALLER
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Publication number: 20180290480Abstract: A method for producing a multi-layer body, in particular a security element, in which a partial first layer or partial first layer system is produced on a substrate, wherein the partial first layer or partial first layer system is present in a first partial area and not in a second partial area. Subsequently, a partial second layer or partial second layer system is produced, wherein the partial second layer or partial second layer system is present in a third partial area and not in a fourth partial area, and wherein the third partial area overlaps with the first and second partial areas. Finally, the partial first layer or partial first layer system is structured as a mask using the partial second layer or partial second layer system.Type: ApplicationFiled: April 3, 2018Publication date: October 11, 2018Inventors: Rene Staub, Ludwig Brehm, Patrick Kramer, Rouven Spiess, Karin Forster
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Patent number: 10029505Abstract: The invention relates to a method for producing a multilayer body (100, 200, 300, 400), as well as a multilayer body (100, 200, 300, 400) produced thereby. A single- or multi-layered first decorative ply (3) is applied to a carrier ply with a first (11) and a second (12) side. A metal layer (5) is applied to the side of the first decorative ply (3) facing away from the carrier ply and structured such that the metal layer (5) is provided with a first layer thickness in one or more first zones (8) and is provided with a second layer thickness different from the first layer thickness in one or more second zones (9), wherein in particular the second layer thickness is equal to zero. A single- or multi-layered second decorative ply (7) is applied to the side of the metal layer (5) facing away from the first decorative ply (3) and structured using the metal layer (5) as mask such that the first (3) or second (7) decorative ply is at least partially removed in the first (8) or second (9) zones.Type: GrantFiled: June 26, 2014Date of Patent: July 24, 2018Assignee: LEONHARD KURZ STIFTUNG & CO. KGInventors: Ludwig Brehm, Tibor Mannsfeld, Juri Attner, Thorsten Schaller
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Patent number: 9969203Abstract: In a process for producing a multilayer body, an HRI layer made of a material having a high refractive index is applied to at least part of the surface area of a substrate. At least one partial region of the HRI layer is then physically removed from the substrate again by treatment with an alkaline solution. Additionally specified is a multilayer body that can be obtained by such a process.Type: GrantFiled: August 8, 2014Date of Patent: May 15, 2018Assignees: LEOHNARD KURZ STIFTUNG & CO. KG, OVD KINEGRAM AGInventors: René Staub, Ludwig Brehm, Juri Attner, Michael Hoffmann, Peter Seeholzer
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Patent number: 9956807Abstract: The invention relates to a method for producing a multi-layer body, in particular a security element, in which a partial first layer or partial first layer system is produced on a substrate, wherein the partial first layer or partial first layer system is present in a first partial area and not in a second partial area. Subsequently, a partial second layer or partial second layer system is produced, wherein the partial second layer or partial second layer system is present in a third partial area and not in a fourth partial area, and wherein the third partial area overlaps with the first and second partial areas. Finally, the partial first layer or partial first layer system is structured as a mask using the partial second layer or partial second layer system.Type: GrantFiled: November 28, 2014Date of Patent: May 1, 2018Assignees: LEONHARD KURZ STIFTUNG & CO. KG, OVD KINEGRAM AGInventors: Rene Staub, Ludwig Brehm, Patrick Kramer, Rouven Spiess, Karin Forster
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Publication number: 20180043723Abstract: A method for producing a multilayer body, with the steps: a) providing a first printed layer; b) partially applying a second printed layer to the first printed layer; c) structuring the first printed layer using the second printed layer as a mask. A multilayer body obtainable in this way and a security document with such a multilayer body.Type: ApplicationFiled: March 9, 2016Publication date: February 15, 2018Inventors: Ludwig Brehm, Klaus Pforte, Patrick Kramer, Karin Forster
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Publication number: 20170368864Abstract: A method for producing a multilayer body, with the steps of: a) providing a substrate film with a replication layer; b) molding a surface relief appearing to the observer in the form of a three-dimensional free-form surface, which is formed in particular by structures with a lens-like design generating a magnifying, demagnifying or distorting effect, into a surface of the replication layer; c) applying a first metal layer to the surface of the replication layer forming the surface relief; d) wet-chemically applying an at least partially transparent spacer layer to the metal layer; e) applying a second metal layer to the spacer layer.Type: ApplicationFiled: January 11, 2016Publication date: December 28, 2017Applicants: LEONHARD KURZ Stiftung & Co. KG, OVD Kinegram AGInventors: Harald Walter, Ludwig Brehm, Sebastian Mader, Wayne Robert Tompkin, Eser Alper Unal
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Publication number: 20170322515Abstract: The invention relates to a multilayer body with a volume hologram layer and a partial opaque layer, arranged on a surface of the volume hologram layer, which is present in a first area and is not present in a second area. The invention furthermore relates to a method for the production of such a multilayer body, as well as a security element and security document with such a multilayer body.Type: ApplicationFiled: November 19, 2015Publication date: November 9, 2017Inventors: Klaus Pforte, Ludwig Brehm