EP1252602A4 - Authentication and coding by size, shape, and fluorescence - Google Patents

Authentication and coding by size, shape, and fluorescence

Info

Publication number
EP1252602A4
EP1252602A4 EP00991733A EP00991733A EP1252602A4 EP 1252602 A4 EP1252602 A4 EP 1252602A4 EP 00991733 A EP00991733 A EP 00991733A EP 00991733 A EP00991733 A EP 00991733A EP 1252602 A4 EP1252602 A4 EP 1252602A4
Authority
EP
European Patent Office
Prior art keywords
fluorescence
authentication
coding
size
shape
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00991733A
Other languages
German (de)
French (fr)
Other versions
EP1252602A1 (en
Inventor
Nabil M Lawandy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spectra Science Corp
Original Assignee
Spectra Science Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spectra Science Corp filed Critical Spectra Science Corp
Publication of EP1252602A1 publication Critical patent/EP1252602A1/en
Publication of EP1252602A4 publication Critical patent/EP1252602A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00—Pattern recognition
EP00991733A 1999-11-09 2000-11-09 Authentication and coding by size, shape, and fluorescence Withdrawn EP1252602A4 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US708273 1996-09-03
US16438799P 1999-11-09 1999-11-09
US164387P 1999-11-09
US70827300A 2000-11-08 2000-11-08
PCT/US2000/042065 WO2001037207A1 (en) 1999-11-09 2000-11-09 Authentication and coding by size, shape, and fluorescence

Publications (2)

Publication Number Publication Date
EP1252602A1 EP1252602A1 (en) 2002-10-30
EP1252602A4 true EP1252602A4 (en) 2003-06-18

Family

ID=26860515

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00991733A Withdrawn EP1252602A4 (en) 1999-11-09 2000-11-09 Authentication and coding by size, shape, and fluorescence

Country Status (3)

Country Link
EP (1) EP1252602A4 (en)
AU (1) AU3438801A (en)
WO (1) WO2001037207A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007106514A2 (en) 2006-03-13 2007-09-20 Smi Holding, Inc. Automatic microparticle mark reader
US8330122B2 (en) 2007-11-30 2012-12-11 Honeywell International Inc Authenticatable mark, systems for preparing and authenticating the mark
US8825361B1 (en) * 2011-10-10 2014-09-02 The Boeing Company Methods and systems for determining performance characteristics of mechanical systems based on fuel properties
WO2015066607A1 (en) * 2013-11-04 2015-05-07 Invisidex, Inc. Systems and methods for developing quantifiable material standards for feedstocks and products used in additive manufactruing processes
US9358486B2 (en) 2014-06-27 2016-06-07 Eastman Chemical Company Method for characterizing fibers with shape and size used for coding
US9863920B2 (en) 2014-06-27 2018-01-09 Eastman Chemical Company Fibers with chemical markers and physical features used for coding
US9442074B2 (en) 2014-06-27 2016-09-13 Eastman Chemical Company Fibers with surface markings used for coding

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861886A (en) * 1968-11-13 1975-01-21 Melpar Inc Material identification coding methods and systems
GB2148486A (en) * 1983-09-13 1985-05-30 Bradbury Wilkinson Plc Identification of articles
US5643728A (en) * 1992-08-26 1997-07-01 Slater; James Howard Method of marking a liquid

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4131064A (en) * 1977-07-15 1978-12-26 Westinghouse Electric Corp. Tagging particles which are easily detected by luminescent response, or magnetic pickup, or both
US5225900A (en) * 1990-12-31 1993-07-06 Xerox Corporation Method of storing information within a reproduction system
US5543177A (en) * 1992-11-05 1996-08-06 Xerox Corporation Marking materials containing retroreflecting fillers
US5667924A (en) * 1996-02-14 1997-09-16 Xerox Corporation Superparamagnetic image character recognition compositions and processes of making and using

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861886A (en) * 1968-11-13 1975-01-21 Melpar Inc Material identification coding methods and systems
GB2148486A (en) * 1983-09-13 1985-05-30 Bradbury Wilkinson Plc Identification of articles
US5643728A (en) * 1992-08-26 1997-07-01 Slater; James Howard Method of marking a liquid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0137207A1 *

Also Published As

Publication number Publication date
AU3438801A (en) 2001-05-30
WO2001037207A1 (en) 2001-05-25
EP1252602A1 (en) 2002-10-30

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