Patent · US Active

Laser marking

US8048608B2 · kind B2 · utility

49Cited by
4References
25Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 6, 2007
Grant dateNov 1, 2011
Priority date—
Expiry dateJan 31, 2028

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41M5/32
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

An ink formulation comprises a marking component, e.g. ammonium octamolybdate, and a metal salt that absorbs laser irradiation at 780-2500 nm, e.g. reduced indium tin oxide, and thereby causes the marking component to change colour.

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