Compositions – Water-softening or purifying or scale-inhibiting agents – Plant or organic material containing
Reexamination Certificate
2005-12-27
2005-12-27
Metzmaier, Daniel S. (Department: 1712)
Compositions
Water-softening or purifying or scale-inhibiting agents
Plant or organic material containing
C119S231000, C426S805000
Reexamination Certificate
active
06979411
ABSTRACT:
A composition for long term improvement of water quality in biological tank systems is described as: 1) at least one highly or poorly soluble Al3+, Fe3+, TiO2+or ZrO2+salt of an organic carboxylic acid, optionally mixed with an organic carboxylic acid; 2) at least one water soluble N free biologically degradable organic compound; 3) at least one soluble alkali or alkaline earth metal salt of an organic carboxylic acid; and 4) at least one Mg2+salt of an organic carboxylic acid, optionally mixed with at least one Ca2+of an organic carboxylic acid; and also 5) trace elements and vitamins, particularly water soluble vitamins of the B series. Changes in water quality determining parameters can be reduced, minimized or eliminated by using the described agent and thus a significant reduction in partial water change frequency or a clear extension of periods without water changing can be achieved.
REFERENCES:
patent: 3992556 (1976-11-01), Kovacs et al.
patent: 5118513 (1992-06-01), Mehansho et al.
patent: 5618574 (1997-04-01), Bunch
patent: 6299928 (2001-10-01), Takeuchi et al.
patent: 6306453 (2001-10-01), Kurzinger
patent: 6376229 (2002-04-01), Morris et al.
patent: 6477982 (2002-11-01), Ritter
patent: 1 115 620 (1996-01-01), None
patent: 296 17 181 (1997-02-01), None
patent: 195 33 994 (1997-03-01), None
patent: 197 04 953 (1998-08-01), None
patent: 1 415 453 (1975-11-01), None
patent: WO 97/34838 (1997-09-01), None
patent: 61-96959 (1986-05-01), None
patent: WO 96/26905 (1996-09-01), None
patent: WO 9708960 (1997-03-01), None
patent: WO 97/34838 (1997-09-01), None
Leaflet supplied with the product “CENTRUM”, a food supplemental marketed in Apr. 1997 in Germany by the Company Whitehall-Much.
Merchant & Gould
Metzmaier Daniel S.
Tetra Holding (US), Inc.
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