1
Roland Gutmann, Benedikt Ahlers, Frank Kappe, Ralf Paugstadt, Arnim Franz Burgholz: Security document with optically excitable dyes for authenticity check. Bundesdruckerei, Darby & Darby, May 22, 2001: US06234537 (48 worldwide citation)

A security document with optically excitable dyes for authenticity checking. Dyes are applied to or embedded in the security documents. The dyes are advantageously embedded in a carrier material which in conjunction with the dyes forms a laser-active element. Certain optically excitable dyes are inc ...


2
Benedikt Ahlers, Arnim Franz Burgholz, Roland Gutmann, Wolfgang Schmidt, Frank Kappe: Value or security product with luminescent security elements and method for the production and use thereof in respect to visual and machine-operated detection of authenticity. Bundesdruckerei, The Maxham Firm, March 11, 2003: US06530527 (14 worldwide citation)

A value or security product such as a banknote, ID card or the like, is provided with luminescent security elements which are excitable in an electromagnetic alternating field. A production method of applying the required colors and substances to the value or security product is also provided. Also ...


3
Benedikt Ahlers, Anett Bailleu, Arnim Franz Burgholz, Oliver Muth, Manfred Paeschke, Hans Zerbel: Apparatus and method for detecting the authenticity of secured documents. Bundesdruckerei, Darby & Darby, August 15, 2006: US07092583 (7 worldwide citation)

A method and apparatus are disclosed for determining the authenticity of secured documents which include an authentication element of the type which, when excited with radiation of a specific excitation wavelength, emits radiation which can be detected by a detection unit and evaluated by an evaluat ...


4
Frank Kappe, Benedikt Ahlers, Arnim Franz Burgholz, Hans Jürgen Limburg, Detlef Starick, Monika Voh: Zinc sulfide electroluminophores and method for production thereof. Bundesdruckeri, Leuchtstoffwerk Breitungen, Browdy and Neimark PLLC, June 27, 2006: US07067071 (6 worldwide citation)

Zinc sulfide electroluminophores are prepared from solutions of zinc salts with hydrogen sulfide. The zinc sulfide compounds are mixed with activator and coactivator compounds to produce luminophores, and the mixtures are fired in the presence of fixing agents. These fired materials are then treated ...


5
Armin Weichmann, Arnim Franz Burgholz, Rainer Stamme, Andreas Schiller, Hans Fleischmann: Process and apparatus for gravure. MAN Roland Druckmaschinen, Cohen Pontani Lieberman & Pavane, October 14, 2003: US06631676 (6 worldwide citation)

A process and apparatus for gravure printing of an image using an erasable and reusable gravure form including a gravure blank form having a base screen which is designed for accommodating a maximum amount of ink to be transferred. The depressions of the base screen of the gravure blank form are uni ...


6
Anett Bailleu, Arnim Franz Burgholz, Hans Demanowski, Daniel Grammlich, Manfred Paeschke, Konstantin Pötschke, Martin Sprenger: Valuable document comprising a security element and method for producing said valuable document. Bundesdruckerei, Darby & Darby, September 23, 2008: US07427029 (5 worldwide citation)

A valuable document comprising at least one security element that is provided with a marking layer in a marking region, the layer containing an electroluminescent pigment and being applied to a carrier body. The electroluminescence of the pigment of one such valuable document must be able to be exci ...


7
Horst Dauer, Bernhard Feller, Arnim Franz Burgholz, Josef Gottling: Process and device for producing a printing form with a narrow transfer foil. MAN Roland Druckmaschinen, Cohen Pontani Lieberman Pavane, February 11, 1997: US05601022 (5 worldwide citation)

In order to permit a printing form to be produced by laser-induced thermotransfer in a simple manner that can be integrated into the printing machine, without the gases which arise during laser imaging detectably disturbing the transfer of material from the transfer foil, i.e., the image quality, a ...


8
Irina Menz, Günther Dausmann, Benedikt Ahlers, Arnim Franz Burgholz: Security system, particularly for valuable documents. Giesecke & Devrient, Dilworth & Barrese, January 1, 2008: US07315407 (4 worldwide citation)

The invention relates to a security system especially for security documents, wherein a security element is provided in a carrier plane, that under incident light holographically reconstructs a pattern outside the carrier plane, in which concealed information is stored and having a flat transparent ...


9
Benedikt Ahlers, Roland Gutmann, Arnim Franz Burgholz, Anett Bailleu, Manfred Paeschke, Peter Halter: Sensor for authenticity identification of signets on documents. Bundesruckerai, Bauner Electric, Katten Muchin Zavis Rosenman, May 25, 2004: US06741336 (3 worldwide citation)

A sensor is proposed for authenticity identification of luminescent identification features on documents, in which the identification feature is illuminated with an excitation wavelength and may respond at a different wavelength, with the response wavelength being detected and evaluated by a radiati ...


10
Benedikt Ahlers, Roland Gutmann, Arnim Franz Burgholz, Anett Bailleu, Manfred Paeschke, Peter Halter, Hans Zerbel, Uwe Weber: Handsensor for authenticity identification of signets on documents. Bundesdruckerei, Baumer Electric, Katten Muchin Zavis Rosenman, August 31, 2004: US06784441 (3 worldwide citation)

A manually controlled sensor for authenticity identification of luminescent identification features on documents is described, in which the identification feature is illuminated with an excitation wavelength and may respond at a different wavelength, with the response wavelength being detected and e ...