Use of disulfonated anthracenes as inert fluorescent tracers

Details for Australian Patent Application No. 2004265235 (hide)

Owner Nalco Company

Inventors Godfrey, Martin R.; Hoots, John E.

Agent Griffith Hack

Pub. Number AU-A-2004265235

PCT Pub. Number WO2005/016479

Priority 10/631,606 31.07.03 US

Filing date 7 June 2004

Wipo publication date 24 February 2005

International Classifications

C23F 11/00 (2006.01) Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent

C02F 1/00 (2006.01) Treatment of water, waste water, or sewage

C02F 1/52 (2006.01) Treatment of water, waste water, or sewage - by flocculation or precipitation of suspended impurities

C02F 1/68 (2006.01) Treatment of water, waste water, or sewage - by addition of specified substances, e.g. trace elements, for ameliorating potable water

C02F 1/76 (2006.01) Treatment of water, waste water, or sewage - with halogens or compounds of halogens

C23F 11/06 (2006.01) Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent - in markedly alkaline liquids

G01N 1/00 (2006.01) Sampling

G01N 21/64 (2006.01) Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light - Fluorescence

G01N 21/66 (2006.01) Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light

Event Publications

12 January 2006 PCT application entered the National Phase

  PCT publication WO2005/016479 Priority application(s): WO2005/016479

7 January 2010 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(d). Examination has been requested or an examination report has issued for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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