Filtering method

Details for Australian Patent Application No. 2004200982 (hide)

Owner NGK Insulators, Ltd.

Inventors Murata, Naoki; Oyachi, Hiroyuki; Aoki, Nobuhiro; Yonekawa, Hitoshi

Agent Patent Attorney Services

Pub. Number AU-B-2004200982

Priority 2003-063414 10.03.03 JP

Filing date 10 March 2004

Wipo publication date 30 September 2004

Acceptance publication date 6 November 2008

International Classifications

B01D 61/14 (2006.01) Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration - Ultrafiltration

B01D 61/22 (2006.01) Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration - Controlling or regulating

B01D 63/06 (2006.01) Apparatus in general for separation processes using semi-permeable membranes - Tubular membrane modules

B01D 65/02 (2006.01) Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes

B01D 71/02 (2006.01) Semi-permeable membranes for separation processes or apparatus characterised by the material

C02F 1/44 (2006.01) Treatment of water, waste water, or sewage - by dialysis, osmosis or reverse osmosis

Event Publications

25 March 2004 Complete Application Filed

  Priority application(s): 2003-063414 10.03.03 JP

30 September 2004 Application Open to Public Inspection

  Published as AU-B-2004200982

25 October 2007 Section 223 Application Allowed

  NGK Insulators, Ltd. The time in which to request examination has been extended to 27 Sep 2007. Address for service in Australia - Patent Attorney Services 26 Ellingworth Parade Box Hill VIC 3128

6 November 2008 Application Accepted

  Published as AU-B-2004200982

5 March 2009 Standard Patent Sealed

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