US6384409B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical tracking system
Assignee: MQS Inc
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Filing: 1999-04-21
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Granted: 2002-05-07
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Expires: 2019-04-21
Abstract
Abstract An optical system for the tracking or verification of items, having an energy source (e.g., an illumination source), selectively producing a specific wavelength (or small set of wavelengths, such as a spectrum) of energy matched with a material sensitive to that illumination. When the material is subjected to the energy source, it emits a wavelength of energy which is then sensed by a detector.
Inventors
- 👤 Miles Augustus Libbey, III
- 👤 Randall Eugene McCoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:44
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G07F7/086; G07D; G07D7/00; G07D7/06; G07D7/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
80 words
An optical system for tracking or verification of an item comprising: (a) a first material receptive to a first wavelength, the first material emitting a second wavelength when subjected to the first wavelength; (b) a second receptive to the second wavelength, the second material emitting a third wavelength when subjected to the second wavelength; (c) an energy source capable of emitting energy in the first wavelength; and (d) a detector capable of detecting the energy emitted in the third wavelength.
Claim 2
Dependent Claim
80 words
An optical system for tracking or verification of an item comprising: (a) a first material receptive to a first wavelength, the first material emitting a second wavelength when subjected to the first wavelength; (b) a second receptive to the second wavelength, the second material emitting a third wavelength when subjected to the second wavelength; (c) an energy source capable of emitting energy in the first wavelength; and (d) a detector capable of detecting the energy emitted in the third wavelength.
Claim 3
Dependent Claim
10 words
An object comprising the wavelength-specific material of claim 1 .
Claim 4
Dependent Claim
11 words
An anti-counterfeit label comprising the wavelength-specific material of claim 1 .
Claim 5
Dependent Claim
14 words
The system of claim 1 , where a second detector detects the second wavelength.
Claim 6
Independent Claim
87 words
A method of tracking or verifying an item comprising: (a) providing a first material receptive to a first wavelength, wherein said first material emits energy at a second wavelength when subjected to the first wavelength; (b) providing a second material receptive to the second wavelength, wherein said second material emits energy in a third wavelength when subjected to the second wavelength; (c) exposing the first material and second material to an energy source in the first wavelength; and (d) detecting the energy emitted in the third wavelength.
Claim 7
Independent Claim
87 words
A method of tracking or verifying an item comprising: (a) providing a first material receptive to a first wavelength, wherein said first material emits energy at a second wavelength when subjected to the first wavelength; (b) providing a second material receptive to the second wavelength, wherein said second material emits energy in a third wavelength when subjected to the second wavelength; (c) exposing the first material and second material to an energy source in the first wavelength; and (d) detecting the energy emitted in the third wavelength.
Claim 8
Dependent Claim
11 words
An object comprising a wavelength specific material of claim 5 .
Claim 9
Dependent Claim
14 words
The method of claim 5 , where a second detector detects the second wavelength.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-05-06 | 2005-11-05 | 2006-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-05-06 | 2009-11-05 | 2010-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-05-06 | 2013-11-05 | 2014-05-07 | $7700.00 | Window Closed / Lapsed |