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US 7,531,108 B2 |
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| Security features incorporating photoluminescent phosphor powders and methods for making security features |
| Mark J. Hampden-Smith, Albuquerque, N. Mex. (US); Toivo T. Kodas, Albuquerque, N. Mex. (US); James Caruso, Albuquerque, N. Mex. (US); Daniel J. Skamser, Simpsonville, S.C. (US); Quint H. Powell, Albuquerque, N. Mex. (US); and Klaus Kunze, Albuquerque, N. Mex. (US) |
| Assigned to Cabot Corporation, Boston, Mass. (US) |
| Filed on Feb. 21, 2007, as Appl. No. 11/677,268. |
| Application 11/677268 is a division of application No. 10/730756, filed on Dec. 08, 2003, granted, now 7,229,572. |
| Application 10/730756 is a division of application No. 09/800426, filed on Mar. 06, 2001, granted, now 6,660,185. |
| Application 09/800426 is a division of application No. 09/141393, filed on Aug. 27, 1998, granted, now 6,197,218. |
| Application 09/141393 is a continuation in part of application No. 09/028603, filed on Feb. 24, 1998, granted, now 6,180,029. |
| Application 09/028603 is a continuation in part of application No. 09/030060, filed on Feb. 24, 1998, granted, now 6,153,123. |
| Application 09/030060 is a continuation in part of application No. 09/030057, filed on Feb. 24, 1998, granted, now 6,338,809. |
| Claims priority of provisional application 60/038262, filed on Feb. 24, 1997. |
| Claims priority of provisional application 60/039450, filed on Feb. 24, 1997. |
| Prior Publication US 2007/0138438 A1, Jun. 21, 2007 |
| This patent is subject to a terminal disclaimer. |
| Int. Cl. C09K 11/78 (2006.01); C09D 5/22 (2006.01); B41M 3/14 (2006.01)
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