Compositions – Water-softening or purifying or scale-inhibiting agents – Plant or organic material containing
Reexamination Certificate
2005-01-25
2005-01-25
Hruskoci, Peter A. (Department: 1724)
Compositions
Water-softening or purifying or scale-inhibiting agents
Plant or organic material containing
C210S729000, C210S906000, C534S015000, C534S016000
Reexamination Certificate
active
06846432
ABSTRACT:
Methods and compositions for removing phosphate from swimming pool waters are disclosed. The compositions include both soluble and substantially insoluble lanthanide carboxylates, preferred examples being lanthanum glycolate and lactate. The methods include the addition of the lanthanide compounds to the bulk of the pool water, but preferably involve the loading of the pool filter with the composition and the circulation of pool water through the filter to effect the removal of dissolved phosphate in the water.
REFERENCES:
patent: 4242232 (1980-12-01), Sylvester et al.
patent: 4461883 (1984-07-01), Takeuchi et al.
patent: 4747975 (1988-05-01), Ritter
patent: 4778671 (1988-10-01), Wusirika
patent: 5202130 (1993-04-01), Grant et al.
patent: 5597484 (1997-01-01), Tolley et al.
patent: 5683953 (1997-11-01), Mills
patent: 5783676 (1998-07-01), Yunlu
patent: 5801277 (1998-09-01), Sumida et al.
patent: 6054563 (2000-04-01), Alas et al.
patent: 6111082 (2000-08-01), Yunlu et al.
patent: 6524487 (2003-02-01), Kulperger et al.
patent: WO 0162673 (2001-08-01), None
Hruskoci Peter A.
Innovez Pty Ltd.
Mills Dudley John
Sidley Austin Brown & Wood LLP
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