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Patent applications and USPTO patent grants for Wessels; Esther.The latest application filed is for "irreversible application of an invisible marking to polymer mouldings".
Patent | Date |
---|---|
Laser-writable polymer composition Grant 6,903,153 - Wessels , et al. June 7, 2 | 2005-06-07 |
Irreversible application of an invisible marking to polymer mouldings App 20040055492 - Van Den Elshout, Wihelmus H.H.A. ;   et al. | 2004-03-25 |
Flame-retarded laser-markable polyester composition App 20020134771 - Wenger, Richard ;   et al. | 2002-09-26 |
Laser-writable polymer composition App 20020077380 - Wessels, Esther ;   et al. | 2002-06-20 |
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