Patents by Inventor Stephan Steinlein
Stephan Steinlein 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: 11148447Abstract: An intaglio printing ink includes capsule luminescent pigments and a further machine-readable feature substance. The capsule luminescent pigments include at least one core with a luminescent substance and one shell encapsulating the at least one core. They are characterized by their high luminescence intensity and high chemical stability, which enables a simultaneous loading of the intaglio printing ink with a further machine-readable feature. A printing method and a printed product include the intaglio printing ink.Type: GrantFiled: May 7, 2018Date of Patent: October 19, 2021Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBHInventors: Johann Kecht, Stephan Steinlein, Thomas Giering
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Publication number: 20210213771Abstract: A security transfer element includes a security element layer composite with a functional layer arranged to develop an optically variable effect for a viewer. On the opposite side of the functional layer with respect to the viewer, the security element layer composite has at least one luminescent substance. The luminescent substance has a primary emission wavelength and can be excited by an excitation radiation. The functional layer is configured to be opaque to the emission radiation of the luminescent substance. The security transfer element comprises a carrier film, and the security element layer composite is arranged on the carrier film in a detachable manner. The security element layer composite comprises a functional layer and an adhesive layer. The functional layer has an embossing lacquer with an embossed structure. The embossing lacquer is coated with a metallization. The adhesive layer comprises several luminescent substances.Type: ApplicationFiled: September 6, 2019Publication date: July 15, 2021Inventors: Wolfgang DECKENBACH, Thomas GIERING, Stephan STEINLEIN, Johann KECHT, Thomas HAPP
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Publication number: 20210070080Abstract: An intaglio printing ink includes capsule luminescent pigments and a further machine-readable feature substance. The capsule luminescent pigments include at least one core with a luminescent substance and one shell encapsulating the at least one core. They are characterized by their high luminescence intensity and high chemical stability, which enables a simultaneous loading of the intaglio printing ink with a further machine-readable feature. A printing method and a printed product include the intaglio printing ink.Type: ApplicationFiled: May 7, 2018Publication date: March 11, 2021Inventors: Johann KECHT, Stephan STEINLEIN, Thomas GIERING
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Patent number: 10576773Abstract: A security element for securing value documents comprises a first polymer containing a feature substance, which is at least partially surrounded by a second polymer, wherein the first polymer is a hydrophobic, water-insoluble polymer which, at an elevated pH value and at elevated ambient temperature at a treatment duration of less than 60 minutes can be converted into a hydrophilic, water-soluble polymer. The security elements also contains a second polymer, which is a hydrophilic, water-soluble polymer, wherein the elevated pH value is greater than 12 and the elevated ambient temperature is greater than 90° C.Type: GrantFiled: August 22, 2017Date of Patent: March 3, 2020Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBHInventors: Johann Kecht, Axel Schlossbauer, Stephan Steinlein
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Publication number: 20190168530Abstract: A security element for securing value documents comprises a first polymer containing a feature substance, which is at least partially surrounded by a second polymer, wherein the first polymer is a hydrophobic, water-insoluble polymer which, at an elevated pH value and at elevated ambient temperature at a treatment duration of less than 60 minutes can be converted into a hydrophilic, water-soluble polymer. The security elements also contains a second polymer, which is a hydrophilic, water-soluble polymer, wherein the elevated pH value is greater than 12 and the elevated ambient temperature is greater than 90° C.Type: ApplicationFiled: August 22, 2017Publication date: June 6, 2019Inventors: Johann KECHT, Axel SCHLOSSBAUER, Stephan STEINLEIN
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Patent number: 10144242Abstract: A method for checking the authenticity and/or the nominal value of a value document having luminescent feature substances, comprises: a1) the step of carrying out a location-specific measurement of first luminescence intensities (L1) at a first emission wavelength at different locations of the value document that have the location coordinates (O), to thereby obtain (O/L1) measurement value pairs; b1) the step of statistically analyzing the first luminescence intensities (L1) measured in dependence on the individual location coordinates (O), by determining at least one statistical parameter using a statistical method; and c1) the step of comparing the statistical parameter determined in the step b1) with one or more threshold values.Type: GrantFiled: September 27, 2013Date of Patent: December 4, 2018Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBHInventors: Thomas Giering, Johann Kecht, Wolfgang Rauscher, Stephan Steinlein
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Patent number: 10040995Abstract: The invention relates to a security feature having a luminescent substance with the general formula AXO3: Z (I) or B0.5XO3: Z (II) or A1-2yByXO3: Z (III), where A is an alkali metal, B is an alkaline earth metal, X stands for Nb or Ta, Z is the luminescence activator, and y lies between 0 and 0.5. The invention also relates to a security element, a security paper and a value document which is equipped with the security feature according to the invention, and to the use of the luminescent substance with the general formula (I), (II) or (III) as a feature substance for authentication. The luminescent substance is obtained by annealing solid starting materials.Type: GrantFiled: May 3, 2016Date of Patent: August 7, 2018Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBHInventors: Johann Kecht, Stephan Steinlein, Kai Uwe Stock
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Patent number: 9908360Abstract: The invention relates to a security feature for securing documents of value having a plurality of microcapsules, which respectively have a wall and in which is respectively contained a liquid medium in which are distributed several magnetic particles which are movable in the liquid medium and whose arrangement within the microcapsule is changeable by the action of a magnetic field, whereby the magnetic particles are configured to arrange themselves within the microcapsule such that they form a light-diffractive structure.Type: GrantFiled: May 31, 2010Date of Patent: March 6, 2018Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBHInventors: Johann Kecht, Stephan Steinlein
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Patent number: 9776450Abstract: A method for checking, in particular the authenticity and/or the nominal value of a value document having luminescent feature substances, comprises: a1) the step of carrying out a location-specific measurement of first luminescence intensities at a first emission wavelength at different locations of the value document that have the location coordinates, to thereby obtain measurement value pairs; b1) the step of statistically analyzing the first luminescence intensities measured in dependence on the individual location coordinates, by determining at least one statistical parameter using a statistical method; and c1) the step of comparing the statistical parameter determined in the step b1) with one or more threshold values.Type: GrantFiled: September 27, 2013Date of Patent: October 3, 2017Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBHInventors: Thomas Giering, Johann Kecht, Wolfgang Rauscher, Stephan Steinlein
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Patent number: 9540771Abstract: A security feature has a luminescent component and a component camouflaging the luminescent component. A security feature has a luminescent component with at least one luminophore consisting of a doped host lattice, and a component camouflaging the luminescent component, wherein for camouflaging the luminescent component, relevant properties required for identifying the luminescent component are camouflaged by the camouflaging component by the relevant properties of the luminescent component. The relevant properties being camouflaged by the camouflaging component in at least two of the relevant properties by the camouflaging component having relevant properties that correspond to the respective relevant properties of the luminescent component, thereby impeding or preventing a recognition of the luminescent component.Type: GrantFiled: December 19, 2012Date of Patent: January 10, 2017Assignee: GIESECKE & DEVRIENT GMBHInventors: Thomas Giering, Johann Kecht, Stephan Steinlein
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Patent number: 9469145Abstract: The invention relates to a security feature having a luminescent component and a component camouflaging the luminescent component. The invention starts out from a security feature having a luminescent component having at least one luminophore consisting of at least one doped host lattice, and a component camouflaging the luminescent component, wherein the camouflaging component has chemical elements that have similar structure-chemical properties to the chemical elements of the luminescent component, wherein the chemical elements of the camouflaging component and the chemical elements of the luminescent component are formed by different chemical elements.Type: GrantFiled: December 19, 2012Date of Patent: October 18, 2016Assignee: GIESECKE & DEVRIENT GMBHInventors: Thomas Giering, Johann Kecht, Stephan Steinlein
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Patent number: 9453162Abstract: The invention relates to a security feature having a luminescent substance with the general formula AXO3:Z (I) or B0.5XO3:Z (II) or A1-2yByXO3:Z (III), where A is an alkali metal, B is an alkaline earth metal, X stands for Nb or Ta, Z is the luminescence activator, and y lies between 0 and 0.5. The invention also relates to a security element, a security paper and a value document which is equipped with the security feature according to the invention, and to the use of the luminescent substance with the general formula (I), (II) or (III) as a feature substance for authentication. The luminescent substance is obtained by annealing solid starting materials.Type: GrantFiled: July 7, 2011Date of Patent: September 27, 2016Assignee: GIESECKE & DEVRIENT GMBHInventors: Johann Kecht, Stephan Steinlein, Kai Uwe Stock
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Patent number: 9447544Abstract: The invention relates to a security feature having a luminescent component and a component camouflaging the luminescent component. The invention starts out from a security feature having a luminescent component having at least one luminophore consisting of a doped host lattice, and a component camouflaging the luminescent component, in which the camouflaging component has at least two substances, the first substance of the camouflaging component having an X-ray diffractogram which hides the X-ray diffractogram of the luminescent component, and the second substance of the camouflaging component having at least one cationic element of the luminescent component and at least one cationic element of the first substance of the camouflaging component, with the luminescent component and the first substance of the camouflaging component being formed of different cationic elements.Type: GrantFiled: December 18, 2012Date of Patent: September 20, 2016Assignee: Giesecke & Devrient GmbHβInventors: Thomas Giering, Johann Kecht, Stephan Steinlein
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Publication number: 20160243876Abstract: The invention relates to a security feature having a luminescent substance with the general formula AXO3: Z (I) or B0.5XO3: Z (II) or A1-2yByXO3: Z (III), where A is an alkali metal, B is an alkaline earth metal, X stands for Nb or Ta, Z is the luminescence activator, and y lies between 0 and 0.5. The invention also relates to a security element, a security paper and a value document which is equipped with the security feature according to the invention, and to the use of the luminescent substance with the general formula (I), (II) or (III) as a feature substance for authentication. The luminescent substance is obtained by annealing solid starting materials.Type: ApplicationFiled: May 3, 2016Publication date: August 25, 2016Inventors: Johann KECHT, Stephan STEINLEIN, Kai Uwe STOCK
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Patent number: 9409434Abstract: The invention relates to a security feature with a luminescent pigment which has a host lattice doped with a luminophore and which is optically excitable to emit luminescent light. The luminescent light of the luminescent pigment has a luminescence spectrum with a first luminescence peak and a second luminescence peak whose peak intensities respectively depend on an amount fraction x of the luminophore in the luminescent pigment. In the luminescent pigment according to the invention, the host lattice and the luminophore and the amount fraction x of the luminophore are chosen such that even a slight increase or reduction of the amount fraction x of the luminophore causes a strong relative change of the peak intensities IA and IB. This increases the forgery-proofness of the luminescent pigment according to the invention.Type: GrantFiled: December 23, 2010Date of Patent: August 9, 2016Assignee: Giesecke & Devrient GmbHInventors: Johann Kecht, Kai Uwe Stock, Stephan Steinlein
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Patent number: 9327542Abstract: The invention relates to a value document having luminescent, particulate agglomerates which respectively include at least two different, luminescent, solid homogeneous phases emitting at a first and a second emission wavelength, respectively, wherein upon an evaluation of measurement values that are obtainable by a measurement of the first luminescence intensity at the first emission wavelength and of the second luminescence intensity at the second emission wavelength, said measurement being location-specific and carried out at different locations, a statistical correlation is present between the first luminescence intensities and the second luminescence intensities.Type: GrantFiled: June 28, 2013Date of Patent: May 3, 2016Assignee: GIESECKE & DEVRIENT GMBHInventors: Johann Kecht, Wolfgang Rauscher, Stephan Steinlein
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Publication number: 20150328915Abstract: The invention relates to a value document having luminescent, particulate agglomerates which respectively include at least two different, luminescent, solid homogeneous phases emitting at a first and a second emission wavelength, respectively, wherein upon an evaluation of measurement values that are obtainable by a measurement of the first luminescence intensity at the first emission wavelength and of the second luminescence intensity at the second emission wavelength, said measurement being location-specific and carried out at different locations, a statistical correlation is present between the first luminescence intensities and the second luminescence intensities.Type: ApplicationFiled: June 28, 2013Publication date: November 19, 2015Inventors: Johann KECHT, Wolfgang RAUSCHER, Stephan STEINLEIN
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Publication number: 20150294522Abstract: A method for checking the authenticity and/or the nominal value of a value document having luminescent feature substances, comprises: a1) the step of carrying out a location-specific measurement of first luminescence intensities (L1) at a first emission wavelength at different locations of the value document that have the location coordinates (O), to thereby obtain (O/L1) measurement value pairs; b1) the step of statistically analyzing the first luminescence intensities (L1) measured in dependence on the individual location coordinates (O), by determining at least one statistical parameter using a statistical method; and c1) the step of comparing the statistical parameter determined in the step b1) with one or more threshold values.Type: ApplicationFiled: September 27, 2013Publication date: October 15, 2015Inventors: Thomas GIERING, Johann KECHT, Wolfgang RAUSCHER, Stephan STEINLEIN
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Publication number: 20150276601Abstract: A method for checking, in particular the authenticity and/or the nominal value of a value document having luminescent feature substances, comprises: a1) the step of carrying out a location-specific measurement of first luminescence intensities at a first emission wavelength at different locations of the value document that have the location coordinates, to thereby obtain measurement value pairs; b1) the step of statistically analyzing the first luminescence intensities measured in dependence on the individual location coordinates, by determining at least one statistical parameter using a statistical method; and c1) the step of comparing the statistical parameter determined in the step b1) with one or more threshold values.Type: ApplicationFiled: September 27, 2013Publication date: October 1, 2015Inventors: Thomas Giering, Johann Kecht, Wolfgang Rauscher, Stephan Steinlein
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Publication number: 20140367958Abstract: A security feature has a luminescent component and a component camouflaging the luminescent component. A security feature has a luminescent component with at least one luminophore consisting of a doped host lattice, and a component camouflaging the luminescent component, wherein for camouflaging the luminescent component, relevant properties required for identifying the luminescent component are camouflaged by the camouflaging component by the relevant properties of the luminescent component. The relevant properties being camouflaged by the camouflaging component in at least two of the relevant properties by the camouflaging component having relevant properties that correspond to the respective relevant properties of the luminescent component, thereby impeding or preventing a recognition of the luminescent component.Type: ApplicationFiled: December 19, 2012Publication date: December 18, 2014Inventors: Thomas Giering, Johann Kecht, Stephan Steinlein