Invention Grant
- Patent Title: Security devices
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Application No.: US13885673Application Date: 2011-11-15
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Publication No.: US09731540B2Publication Date: 2017-08-15
- Inventor: John S. Lettow , Dan Scheffer
- Applicant: John S. Lettow , Dan Scheffer
- Assignee: VORBECK MATERIALS CORP.
- Current Assignee: VORBECK MATERIALS CORP.
- Agent Trentice V. Bolar, Esq.
- International Application: PCT/US2011/060878 WO 20111115
- International Announcement: WO2012/068177 WO 20120524
- Main IPC: B42D25/00
- IPC: B42D25/00 ; B42D25/373 ; B42D25/21 ; B42D25/45 ; B82Y30/00 ; B42D15/00 ; B42D25/29
Abstract:
Multilayered security devices comprising a patterned substrate over which a graphene-based coating has been applied.
Public/Granted literature
- US20140145426A1 Security Devices Public/Granted day:2014-05-29
Information query
