United States Patent (10) Patent No.: US 7,670,491 B2 Callan Et Al
USOO7670491 B2 (12) United States Patent (10) Patent No.: US 7,670,491 B2 Callan et al. (45) Date of Patent: Mar. 2, 2010 (54) BUFFERED COMPOSITIONS FOR DIALYSIS 5,674.404 A 10/1997 Kenley et al. ............... 210,741 5,690.821 A 1 1/1997 Kenley et al. ............... 210,195 (75) Inventors: t le, S. Ran 5,698, 100 A 12, 1997 Levin et al. ................. 210,321 alter A. Van Scna KWK, Issaquan, WA (US); James J. Cole, Arlington, WA 5,728,678 A 3/1998 Trimbo et al. ................. 514/12 (US); Suhail Ahmad, Seattle, WA (US) 5,762,782 A 6, 1998 Kenley et al. ................. 210,85 5,780.438 A 7, 1998 Gilchrist et al. ............... 514, 21 (73) Assignee: Advanced Renal Technologies, 5,783,072 A 7, 1998 Kenley et al. ............... 210,195 Bellevue, WA (US) 5,827,820 A 10/1998 duMoulin et al. .............. 514/2 (*) Notice: Subject to any disclaimer,- the term of this 5,851,483 A 12,f 1998 Nicolle et al. ................. 422/28f patent is extended or adjusted under 35 5,906,978 A 5/1999 Ash ............................ 514, 23 U.S.C. 154(b) by 1478 days. 5,945,129 A 8/1999 Knerr et al. ................. 424f676 6,019,925 A 2/2000 Diamantoglou et al. ..... 264/203 (21) Appl. No.: 10/606,150 6,077,836 A 6/2000 Milner ........................ 514/54 22) Filed: Jun. 24, 2003 6,610,206 B1* 8/2003 Callan et al. ................ 210,646 (22) Filed: ll. A4 6,779,468 B1* 8/2004 Gupta ........................ 210,647 (65) Prior Publication Data 2005/01 19598 A1 6/2005 Callan et al.
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