# US 2018/0322813 A1 · Anti-counterfeiting device and method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0322813 A1 - Document ID: US20180322813A1 - Status: Published application - Kind: A1 - Application number: 15/775,878 - Filed: 2016-11-14 - Published: 2018-11-08 - Earliest claimed: 2015-11-12 - Assignees: Lavoisier LLC - Applicants: Lavoisier LLC - Inventors: Matthew McGuire; Anastasia D'Orazio; Meet Pravin Vora - Web page: https://patentgrep.com/patent/US20180322813A1 ## CPC - G09F 3/0294: {where the change is not permanent, e.g. labels only readable under a special light, temperature indicating labels and the like} - B42D 25/30: Identification or security features, e.g. for preventing forgery - B42D 25/36: comprising special materials - B42D 25/364: Liquid crystals - B42D 25/378: Special inks - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - B42D: BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS ## Abstract The present invention is directed to an anti-counterfeiting device comprising a first sensor configured to undergo a first user perceptible change in response to a first biologically produced stimulus that emanates directly from a biological source; and a second sensor configured to undergo a second user perceptible change in response to a second biologically produced stimulus that emanates directly from the biological source. The second biologically produced stimulus is different than the first biologically produced stimulus. ## Claims ### Claim 1 An anti-counterfeiting device comprising: a first sensor configured to undergo a first user perceptible change in response to a first biologically produced stimulus that emanates directly from a biological source; and a second sensor configured to undergo a second user perceptible change in response to a second biologically produced stimulus that emanates directly from the biological source, the second biologically produced stimulus being different than the first biologically produced stimulus. ### Claim 2 (depends on 1) The anti-counterfeiting device according to claim 1, wherein the first biologically produced stimulus is selected from at least one of change in temperature, application of pressure, change in pH, and exposure to human breath vapor. ### Claim 3 (depends on 1) The anti-counterfeiting device according to claim 1, wherein the first user perceptible change comprises transitioning from a first color to a second color, the first color being different from the second color. ### Claim 4 (depends on 3) The anti-counterfeiting device according to claim 3, wherein the transition from the first color to the second color is temporary. ### Claim 5 (depends on 1) The anti-counterfeiting device according to claim 1, wherein the first biological source is a human body. ### Claim 6 (depends on 1) The anti-counterfeiting device according to claim 1, wherein the second biologically produced stimulus is selected from at least one of change in temperature, application of pressure, pH change, and exposure to human breath vapor. ### Claim 7 (depends on 1) The anti-counterfeiting device according to claim 1, wherein the second user perceptible response comprises transitioning from a third color to a fourth color, the third color being different from the fourth color. ### Claim 8 (depends on 7) The anti-counterfeiting device according to claim 7, wherein the transition from the third color to the fourth color is temporary. ### Claim 9 (depends on 1) The anti-counterfeiting device according to claim 1, wherein the sensor is configured to undergo the first user perceptible change for a first period of time and the second user perceptible response for a second period of time, and the first period of time overlaps with the second period of time. ### Claim 10 An anti-counterfeiting device comprising: a visible surface comprising: a first authentication zone configured to transition between a first state and a second state in response to a first stimulus, the transition between the first state and the second state being perceptible to a user; and a second authentication zone configured to transition between a third state and a fourth state in response to a second stimulus that is different than the first stimulus, the transition between the third state and the fourth state being perceptible to the user. ### Claim 11 (depends on 10) The anti-counterfeiting device according to claim 10, wherein the anti-counterfeiting device is configured such that the first authentication zone in the second state while the second authentication zone being in the fourth state. ### Claim 12 (depends on 10) The anti-counterfeiting device according to claim 10, wherein the transition from the first state to the second state of the first authentication zone is temporary. ### Claim 13 (depends on 10) The anti-counterfeiting device according to claim 10, wherein the transition from the third state to the fourth state of the first authentication zone is temporary. ### Claim 14 (depends on 10) The anti-counterfeiting device according to claim 10, wherein the first state is a first color and the second state is a second color, and wherein the first color is different from the second color. ### Claim 15 (depends on 10) The anti-counterfeiting device according to claim 10, wherein the third state is a third color and the fourth state is a fourth color, and wherein the third color is different from the fourth color. ### Claim 16 (depends on 10) The anti-counterfeiting device according to claim 10, wherein the first authentication zone and the second authentication zone overlap on the visible surface of the anti-counterfeiting device. ### Claim 17 (depends on 10) The anti-counterfeiting device according to claim 10, wherein the first authentication zone and the second authentication zone are isolated from each other on the visible surface of the anti-counterfeiting device. ### Claim 18 (depends on 10) The anti-counterfeiting device according to claim 10, wherein the first authentication zone and the second authentication zone are immediately adjacent to each other on the visible surface of the anti-counterfeiting device. ### Claim at position 19 -25. (canceled) ### Claim 26 An anti-counterfeiting device comprising: a first substrate comprising an upper surface opposite a lower surface; a first sensor applied to the upper surface of the first substrate, the first sensor configured to undergo a first user perceptible change in response to a first stimulus; and a second sensor applied to the upper surface of the first substrate, the second sensor configured to undergo a second user perceptible change in response to a second stimulus. ### Claim 27 (depends on 26) The anti-counterfeiting device according to claim 26, wherein the first sensor emits the second color for a first period of time and the gel emits the fourth color for a second period of time, wherein the first period of time overlaps with the second period of time. ### Claim at position 22 -31. (canceled)