Patent details
EP1171389 Title: COMPOSITION AND METHOD FOR SIMULTANEOUSLY PRECIPITATING METAL IONS FROM SEMICONDUCTOR WASTEWATER AND ENHANCING MICROFILTER OPERATION
Basic Information
- Publication number:
- EP1171389
- PCT Application Number:
- PCT/US/1999/028477
- Type:
- European Patent Granted for LU
- Legal Status:
- Lapsed
- Application number:
- EP999629652
- PCT Publication Number:
- WO/2000/041974
- First applicant's nationality:
- Translation Language:
- EPO Publication Language:
- English
- English Title of Invention:
- COMPOSITION AND METHOD FOR SIMULTANEOUSLY PRECIPITATING METAL IONS FROM SEMICONDUCTOR WASTEWATER AND ENHANCING MICROFILTER OPERATION
- French Title of Invention:
- COMPOSITION ET PROCEDE PERMETTANT DE PRECIPITER LES IONS METALLIQUES DES EAUX RESIDUAIRES ISSUES DU TRAITEMENT DES SEMI-CONDUCTEURS TOUT EN AMELIORANT LE FONCTIONNEMENT D'UN MICROFILTRE
- German Title of Invention:
- ZUSAMMENSETZUNG UND VERFAHREN ZUR GLEICHZEITIGEN FÄLLUNG VON MATALLIONEN AUS HALBLEITERABWÄSSERN UND VERBESSERTES FUNKTIONIEREN EINES MIKROFILTERS
- SPC Number:
Dates
- Filing date:
- 02/12/1999
- Grant date:
- 22/07/2009
- EP Publication Date:
- 22/07/2009
- PCT Publication Date:
- 20/07/2000
- Claims Translation Received Date:
- Translations Received Date (B1 EP Publication):
- Translations Received Date (B2 EP Publication):
- Translations Received Date (B3 EP Publication):
- Publication date:
- 16/01/2002
- EP B1 Publication Date:
- 22/07/2009
- EP B2 Publication Date:
- EP B3 Publication Date:
- Lapsed date:
- 02/12/2009
- Expiration date:
- 02/12/2019
- Renunciation date:
- Revocation date:
- Annulment date:
Owner
- From:
- 02/12/1999
- Name:
- NALCO CHEMICAL COMPANY
- Address:
- One Nalco Center, Naperville Illinois 60563-1198, United States (US)
Agent
- Name:
- OFFICE FREYLINGER S.A.
- From:
- 22/07/2009
- Address:
- Boîte Postale 48, L-8001, STRASSEN, Luxembourg (LU)
- To:
Inventor
1
- Name:
- WARD William, J.
- Address:
- United States (US)
2
- Name:
- KOWALSKI Angela, S.
- Address:
- United States (US)
3
- Name:
- ZEIHER E., H., Kelle
- Address:
- United States (US)
4
- Name:
- SALMEN Kristine, S.
- Address:
- United States (US)
Priority
- Priority Number:
- 232485
- Priority Date:
- 15/01/1999
- Priority Country:
- United States (US)
Classification
- Main IPC Class:
- C02F 1/62;
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