Patent · US Expired

Filter for separating photoactive agent

US5660731A · kind A · utility

43Cited by
13References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 8, 1994
Grant dateAug 26, 1997
Priority date—
Expiry dateNov 8, 2014

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61M1/3686
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Methods, systems, and devices for removing methylene blue from a biological fluid are disclosed.

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