Patent · US Active

Filter

US9291756B2 · kind B2 · utility

0Cited by
3References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 28, 2011
Grant dateMar 22, 2016
Priority date—
Expiry dateSep 8, 2031

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S977/774
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Embodiments disclosed herein relate to a filter (100). In one embodiment, the filter includes a pattern (120). The pattern may reflect or fluoresce non-visible light.

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