Security markers for determining composition of a medium

Gary A. Ross (Inventor), Graham I. Johnson (Inventor), Barrie Clark (Inventor), Simon J. Forrest (Inventor), Jeffrey Cegalis (Inventor), William J. Greaves (Inventor), Charles Q. Maney (Inventor)

Research output: Patent

Abstract

A method of determining a component of a medium comprises illuminating the medium to excite a marker associated with the component. Detected photoluminescent emission from the marker in response to the excitation is compared with one or more emission profiles. The component is identified based on a match between the detected photoluminescent emission and at least one of the emission profiles.
Original languageEnglish
Patent numberUS 7,256,398 B2
Filing date2/11/05
Publication statusPublished - 14 Aug 2007
Externally publishedYes

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Ross, G. A., Johnson, G. I., Clark, B., Forrest, S. J., Cegalis, J., Greaves, W. J., & Maney, C. Q. (2007). Security markers for determining composition of a medium. (Patent No. US 7,256,398 B2). USPTO (United States Patent and Trademark Office).
Ross, Gary A. (Inventor) ; Johnson, Graham I. (Inventor) ; Clark, Barrie (Inventor) ; Forrest, Simon J. (Inventor) ; Cegalis, Jeffrey (Inventor) ; Greaves, William J. (Inventor) ; Maney, Charles Q. (Inventor). / Security markers for determining composition of a medium. USPTO (United States Patent and Trademark Office). Patent No.: US 7,256,398 B2. Nov 02, 2005.
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title = "Security markers for determining composition of a medium",
abstract = "A method of determining a component of a medium comprises illuminating the medium to excite a marker associated with the component. Detected photoluminescent emission from the marker in response to the excitation is compared with one or more emission profiles. The component is identified based on a match between the detected photoluminescent emission and at least one of the emission profiles.",
author = "Ross, {Gary A.} and Johnson, {Graham I.} and Barrie Clark and Forrest, {Simon J.} and Jeffrey Cegalis and Greaves, {William J.} and Maney, {Charles Q.}",
year = "2007",
month = "8",
day = "14",
language = "English",
publisher = "USPTO (United States Patent and Trademark Office)",
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}

Ross, GA, Johnson, GI, Clark, B, Forrest, SJ, Cegalis, J, Greaves, WJ & Maney, CQ Nov. 02 2005, Security markers for determining composition of a medium, Patent No. US 7,256,398 B2.

Security markers for determining composition of a medium. / Ross, Gary A. (Inventor); Johnson, Graham I. (Inventor); Clark, Barrie (Inventor); Forrest, Simon J. (Inventor); Cegalis, Jeffrey (Inventor); Greaves, William J. (Inventor); Maney, Charles Q. (Inventor).

USPTO (United States Patent and Trademark Office). Patent No.: US 7,256,398 B2. Nov 02, 2005.

Research output: Patent

TY - PAT

T1 - Security markers for determining composition of a medium

AU - Ross, Gary A.

AU - Johnson, Graham I.

AU - Clark, Barrie

AU - Forrest, Simon J.

AU - Cegalis, Jeffrey

AU - Greaves, William J.

AU - Maney, Charles Q.

PY - 2007/8/14

Y1 - 2007/8/14

N2 - A method of determining a component of a medium comprises illuminating the medium to excite a marker associated with the component. Detected photoluminescent emission from the marker in response to the excitation is compared with one or more emission profiles. The component is identified based on a match between the detected photoluminescent emission and at least one of the emission profiles.

AB - A method of determining a component of a medium comprises illuminating the medium to excite a marker associated with the component. Detected photoluminescent emission from the marker in response to the excitation is compared with one or more emission profiles. The component is identified based on a match between the detected photoluminescent emission and at least one of the emission profiles.

M3 - Patent

M1 - US 7,256,398 B2

Y2 - 2005/11/02

PB - USPTO (United States Patent and Trademark Office)

ER -

Ross GA, Johnson GI, Clark B, Forrest SJ, Cegalis J, Greaves WJ et al, inventors. Security markers for determining composition of a medium. US 7,256,398 B2. 2007 Aug 14.