PATENT CLAIM ANALYSIS

Application Number: 15875446
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["359", "572000"]

Abstract:
A multilayer body ( 1, 2, 3 ) and a method for producing a security element are described. The multilayer body has a metal layer ( 21 ). An optically active surface relief is molded at least in areas in a first surface of the metal layer ( 21 ) facing the upper side of the multilayer body or forming the upper side of the multilayer body and/or in a second surface of the metal layer ( 21 ) facing the underside of the multilayer body or forming the underside of the multilayer body. In at least one first area ( 31  to  39 ) of the multilayer body the surface relief is formed by a first relief structure ( 61 ). In at least one direction ( 617 ) determined by an allocated azimuth angle, the first relief structure ( 61 ) has a sequence of elevations ( 612 ) and depressions ( 614 ), the elevations ( 612 ) of which follow on from each other with a period P which is smaller than a wavelength of visible light, wherein the minima of the depressions ( 614 ) lie on a base surface and the first relief structure ( 61 ) has a relief depth t which is determined by the spacing of the maxima of the elevations ( 612 ) of the first relief structure ( 61 ) from the base surface in a direction perpendicular to the base surface. The profile shape and/or the relief depth t of the first relief structure ( 61 ) is chosen such that the colored appearance of the light ( 52, 53 ) incident on the first area ( 31  to  39 ) at least at a first angle of incidence and directly reflected by the metal layer ( 21 ) in the first area or directly transmitted through the metal layer is modified, in particular is modified by plasmon resonance of the metal layer with the incident light.

Claim (Index 1):
A security element for security documents, the security element comprising a multilayer body with a first surface facing an upper side of the multilayer body and a second surface facing an underside of the multilayer body, wherein the multilayer body has a metal layer,\n wherein an optically active surface relief is molded in areas of at least one of the first and second surfaces, and wherein, in at least one first area of the multilayer body the surface relief is formed by a first relief structure which has a sequence of elevations and depressions, the elevations of which follow on from each other with a period P which is smaller than a wavelength of visible light, wherein the minima of the depressions lie on a base surface and the first relief structure has a relief depth t which is determined by the spacing of the maxima of the elevations of the first relief structure from the base surface in a direction perpendicular to the base surface, and wherein the sequence of elevations and depressions define a profile shape, wherein the profile shape or the relief depth t of the first relief structure is chosen such that the colored appearance of the light incident on the first area at least at one first angle of incidence and reflected directly by the metal layer in the first area or transmitted directly through the metal layer is modified, by plasmon resonance of the metal layer with the incident light, and wherein the multilayer body has at least one first layer bordering the first surface of the metal layer or one second layer bordering the second surface of the metal layer, which second layer has dyes or luminescent substances, wherein the first or second layer covers the first surface or the second surface of the metal layer in areas or over the whole surface in the first area or in at least one of the first areas in which the first relief structure is molded into the first or second surface.

Metadata:
- Claim Count in Document: 16.0
- Percentile: 86.0
- Lexical Diversity: 3.10909
- Patent Class: 359.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14425183', '14424678', '14361098', '14892420', '14768893']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.816731218701316
- 35 USC 102 Novelty (BERT): 0.4992557041309554
- Combined Prediction Score: 0.78498366724428
- Mean Citation Score: 258.534444
- Max Citation Score: 286.99805
- Similarity Product: 195.35267992594245

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test