Invention Grant
- Patent Title: Double-blind security features
- Patent Title (中): 双盲安全功能
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Application No.: US11741513Application Date: 2007-04-27
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Publication No.: US07976068B2Publication Date: 2011-07-12
- Inventor: Thomas M. Wicker , David M. Wicker , Michael Scott Caton
- Applicant: Thomas M. Wicker , David M. Wicker , Michael Scott Caton
- Applicant Address: US NY Rochester
- Assignee: Document Security Systems, Inc.
- Current Assignee: Document Security Systems, Inc.
- Current Assignee Address: US NY Rochester
- Agency: Harter Secrest & Emery LLP
- Agent Stephen B. Salai, Esq.; Brian B. Shaw, Esq.
- Main IPC: B42D15/00
- IPC: B42D15/00 ; B42D15/10

Abstract:
A compound security feature is formed by printing latent images together with visually integrated settings using an invisible ink. Even if illuminated by a wavelength capable of rendering the inks visible, the latent images remain visually indistinguishable from their visually integrated settings. However, the latent images and visually integrated settings differ in one or more less obvious ways so that the latent images can be distinguished by using a visual aid.
Public/Granted literature
- US20070201116A1 DOUBLE-BLIND SECURITY FEATURES Public/Granted day:2007-08-30
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