Patent · US Active

Security devices

US9731540B2 · kind B2 · utility

0Cited by
1References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 15, 2011
Grant dateAug 15, 2017
Priority date—
Expiry dateNov 15, 2031

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB42D2033/20
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

Multilayered security devices comprising a patterned substrate over which a graphene-based coating has been applied.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.