# US 2021/0172080 A1 · Counterfeiting Deterrent and Security Devices, Systems, and Methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0172080 A1 - Document ID: US20210172080A1 - Status: Published application - Kind: A1 - Application number: 17/069,165 - Filed: 2020-10-13 - Published: 2021-06-10 - Earliest claimed: 2013-07-16 - Assignees: Microfabrica Inc. - Applicants: Microfabrica Inc. - Inventors: Gregory P. Schmitz; Michael S. Lockard; Ming-Ting Wu; Eric C. Miller; Adam L. Cohen - Web page: https://patentgrep.com/patent/US20210172080A1 ## CPC - C25D 1/003: {3D structures, e.g. superposed patterned layers} - B32B 15/01: all layers being exclusively metallic {(making layered metal workpieces by pressure cladding B23K20/22; making coatings with a metallic material characterised by its composition C23C30/00)} - B33Y 40/20: Post-treatment, e.g. curing, coating or polishing - C25D 1/08: Perforated or foraminous objects, e.g. sieves (C25D1/10 takes precedence) - C25D 5/022: {using masking means} - C25D 5/48: After-treatment of electroplated surfaces - B33Y 10/00: Processes of additive manufacturing - B33Y 70/00: Materials specially adapted for additive manufacturing - B33Y 80/00: Products made by additive manufacturing - C25D 7/005: {Jewels; Clockworks; Coins} - C25D: PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING ## Abstract A counterfeiting deterrent device according to one implementation of the disclosure includes a plurality of layers formed by an additive process. Each of the layers may have a thickness of less than 100 microns. At least one of the layers has a series of indentations formed in an outer edge of the layer such that the indentations can be observed to verify that the device originated from a predetermined source. According to another implementation, a counterfeiting deterrent device includes at least one raised layer having outer edges in the shape of a logo. A light source is configured and arranged to shine a light through a slit in a substrate layer of the device and past an intermediate layer to light up the outer edge of the raised layer. The layers of the device are formed by an additive process and have a thickness of less than 100 microns each. ## Claims ### Claim 1 A counterfeiting deterrent device comprising: a plurality of layers formed by an additive process, wherein each of the layers has a thickness of less than 100 microns, wherein at least one of the layers has a series of indentations formed in an outer edge of the layer such that the indentations can be observed to verify that the device originated from a predetermined source. ### Claim 2 (depends on 1) The device of claim 1, wherein each of the layers has a thickness of less than 30 microns. ### Claim 3 (depends on 1) The device of claim 1, wherein each of the indentations has a width of less than 50 microns. ### Claim 4 (depends on 1) The device of claim 1, wherein each of the indentations has a depth of less than 200 microns. ### Claim 5 (depends on 1) The device of claim 1, wherein the series of indentations traverses more than one of the plurality of layers. ### Claim 6 (depends on 1) The device of claim 1, wherein the plurality of layers includes two adjacent layers each having a different series of indentations formed in its outer edge. ### Claim 7 (depends on 1) The device of claim 1, wherein the series of indentations forms a non-repeating digital code having a length of at least three indentations which together represent a three digit binary number. ### Claim 8 (depends on 1) The device of claim 1, wherein the series of indentations traverses less than all of the plurality of layers, such that an overhang exists over the indentations. ### Claim 9 (depends on 1) The device of claim 1, further comprising a series of collinear exterior edge surfaces located between the indentations, and wherein each of the indentions has at least one recessed surface that is non-parallel to the collinear exterior edge surfaces. ### Claim 10 (depends on 1) The device of claim 1, wherein each of the layers is formed of a deposited material with each successive layer formed on and adhered to a previously formed layer, wherein each successive layer comprising at least two materials, one of which is a structural material and the other of which is a sacrificial material, and wherein the forming of each of the plurality of successive layers comprises: (i) depositing a first of the at least two materials; (ii) depositing a second of the at least two materials; and (iii) planarizing the deposited first and second materials, wherein after the plurality of successive layers has been formed, at least a portion of the sacrificial material is separated from the structural material to reveal a three-dimensional structure. ### Claim 11 A method of deterring counterfeiting comprises the steps of: providing a counterfeiting deterrent device formed by a multilayer additive process, wherein each of the layers of the device has a thickness of less than 100 microns, and wherein at least one of the layers has a series of indentations formed in an outer edge of the layer such that the indentations can be observed to verify that the device originated from a predetermined source. ### Claim 12 (depends on 11) The method of claim 11, wherein the counterfeiting deterrent device is integrally formed on an article to be sold. ### Claim 13 (depends on 11) The method of claim 11, wherein the counterfeiting deterrent device is formed separately from an article to be sold, the method further comprising the step of attaching the device to the article to be sold. ### Claim 14 (depends on 11) The method of claim 11, further comprising the steps of directing a source of coherent light onto the series of indentations, and observing light that is reflected from the indentations with an electronic sensor. ### Claim 15 (depends on 11) The method of claim 11, wherein each of the layers is formed of a deposited material with each successive layer formed on and adhered to a previously formed layer, wherein each successive layer comprising at least two materials, one of which is a structural material and the other of which is a sacrificial material, and wherein the forming of each of the plurality of successive layers comprises: (i) depositing a first of the at least two materials; (ii) depositing a second of the at least two materials; and (iii) planarizing the deposited first and second materials, wherein after the plurality of successive layers has been formed, at least a portion of the sacrificial material is separated from the structural material to reveal a three-dimensional structure. ### Claim 16 A counterfeiting deterrent device comprising: at least one raised layer having outer edges in a shape of a logo; at least one substrate layer having lateral dimensions that extend beyond the outer edges of the raised layer; at least one intermediate layer disposed between the raised layer and the substrate layer and supporting the raised layer on the substrate layer, the intermediate layer having lateral dimensions that are recessed from the outer edges of the raised layer; a slit formed in the substrate layer, the slit having outer edges that correspond with the outer edges of the raised layer; and at least one light source located on an opposite side of the substrate layer from the intermediate and raised layers, the light source configured and arranged to shine a light through the slit in the substrate layer and past the intermediate layer to light up the outer edge of the raised layer, wherein the raised layer, substrate layer and intermediate layer are all formed by an additive process, and wherein each of the layers has a thickness of less than 100 microns. ### Claim 17 (depends on 16) The device of claim 16, wherein the outer edges of the slit are located laterally outward from the outer edges of the raised layer such that the light may travel through the slit and directly past the outer edges of the raised layer. ### Claim 18 (depends on 16) The device of claim 16, wherein the outer edges of the slit are located laterally inward from the outer edges of the raised layer such that the light must travel through the slit and scatter from a recessed surface of the raised layer and an outer surface of the substrate layer before passing the outer edges of the raised layer. ### Claim 19 (depends on 16) The device of claim 16, wherein each of the layers is formed of a deposited material with each successive layer formed on and adhered to a previously formed layer, wherein each successive layer comprising at least two materials, one of which is a structural material and the other of which is a sacrificial material, and wherein the forming of each of the plurality of successive layers comprises: (i) depositing a first of the at least two materials; (ii) depositing a second of the at least two materials; and (iii) planarizing the deposited first and second materials, wherein after the plurality of successive layers has been formed, at least a portion of the sacrificial material is separated from the structural material to reveal a three-dimensional structure. ### Claim 20 (depends on 16) The device of claim 16, wherein the device is formed separately from an article to be sold and configured to be attached to the article to be sold.