IP Library Granted Patent US 9,303,194
Granted Patent B2
US 9,303,194 · App. 14/627,561 · Granted Apr 5, 2016

Marker system

Inventor: Michael Cleary (Liverpool, GB)
Assignee: SMARTWATER RESEARCH LIMITED
C09J133/08B32B37/1284B32B37/18B32B38/0036C09D5/18C09D7/1216B32B2519/00C08K3/40Y10T156/10Y10T436/13
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Quick Facts
Patent No.
US 9,303,194
App. No.
14/627,561
Granted
Apr 5, 2016
Kind
B2
Abstract

A marker system for applying to surfaces of items, articles, goods, vehicles and/or premises, said marker system comprising: a marker comprising a temperature resilient medium having a predefined carbonization temperature capable of securing the marker system onto a surface; wherein the medium contains an inorganic matrix having a predefined fusing point lower than the predefined carbonization temperature of the medium; such that when the marker system is subjected to temperatures above the predefined carbonization temperature of the medium, the inorganic matrix fuses to the marker to form an adhesive protective layer thereby securing the marker onto said surface. A composition comprising the marker system. An item, an article, a good, a vehicle and/or premises comprising a surface impregnated with the marker system.

Claims (26)

1. A method for applying a unique marker system to surfaces of items, articles, goods, vehicles and/or premises; wherein said marker system comprising:

a unique marker comprising a temperature resilient medium having a predefined carbonisation temperature capable of securing the marker system onto a surface;

wherein the medium contains an inorganic matrix having a predefined fusing point lower than the predefined carbonisation temperature of the medium;

the method comprising the steps of:

(i) subjecting the marker system to temperatures above the predefined carbonisation temperature of the medium, and

(ii) fusing the inorganic matrix to the marker to form an adhesive protective layer thereby securing the marker onto said surface.

2. The method of claim 1 , wherein the adhesive layer substantially preserves the integrity of the marker.

3. The method of claim 1 , wherein the inorganic matrix is a ground glass.

4. The method of claim 3 , wherein the glass is a finely ground glass.

5. The method of claim 3 , wherein the glass constitutes approximately 20% wt/wt of the marker.

6. The method of claim 1 , wherein the medium is an organic medium.

7. The method of claim 6 , wherein the medium comprises an aqueous acrylate emulsion.

8. The method of claim 1 , wherein the medium comprises a material having a high inherent stability that is resistant to environmental conditions and/or removal through washing or abrasion.

9. The method of claim 1 , wherein the marker further comprises a fingerprint.

10. The method of claim 9 , wherein the fingerprint is an organometalic fingerprint.

11. The method of claim 1 , wherein the marker further comprises an indicator.

12. The method of claim 11 , wherein the indicator comprises an inorganic indicator.

13. The method of claim 11 , wherein the indicator comprises at least one material capable of phosphorescing when subjected to stimulus.

14. The method of claim 11 , wherein the indicator comprises at least one material capable of emitting visible or near infra red radiation at a specific frequency when subjected to infra-red stimulus.

15. The method of claim 11 , wherein the indicator comprises at least one material capable of emitting visible or near infra red radiation when subjected to ultra-violet stimulus.

16. The method of claim 1 , wherein the surfaces of items, articles, goods, vehicles and/or premises comprise metal surfaces.

17. The method of claim 1 , wherein the matrix is capable of preserving the integrity of the markers at high temperatures.

18. The method of claim 17 , wherein the high temperatures include temperatures in excess of 1000° C.

19. The method of claim 1 , wherein said marker system is applied to said surface by spraying.

20. The method of claim 1 , further comprising a step of impregnating said surfaces with the marker system before subjecting the marker system to temperatures above the predefined carbonisation temperature of said medium.

21. The method of claim 1 , wherein the inorganic matrix is fused to the marker by the subjecting the marker system to the temperatures above the predefined carbonisation temperature of the medium, thereby resulting in carbonisation of the marker system.

Assignments (3)
CHANGE OF NAME Recorded Aug 23, 2021
From: SMARTWATER RESEARCH LIMITED
To: SMARTWATER TECHNOLOGY RESEARCH LTD
Reel/Frame 057255/0831 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 23, 2021
From: SMARTWATER TECHNOLOGY RESEARCH LTD
To: THEMIS RISK HOLDINGS LIMITED
Reel/Frame 057255/0884 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 11, 2016
From: CLEARY, MICHAEL
To: SMARTWATER RESEARCH LIMITED
Reel/Frame 037709/0304 →
Continuity (2)
Continuation 13639096
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