Method of cleaning membranes

Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C095S045000, C095S281000, C210S639000, C210S650000, C210S651000

Reexamination Certificate

active

06955762

ABSTRACT:
The present invention relates a method for cleaning polymeric microfiltration membranes and membrane units, and to compositions useful in such methods. The compositions include at least one soluble sulfite reducing agent and a compatible solvent.

REFERENCES:
patent: 3228876 (1966-01-01), Mahon
patent: 3693406 (1972-09-01), Tobin
patent: 3968192 (1976-07-01), Hoffman et al.
patent: 3992301 (1976-11-01), Shippey et al.
patent: 4188817 (1980-02-01), Steigelmann
patent: 4192750 (1980-03-01), Elfes et al.
patent: 4193780 (1980-03-01), Cotton et al.
patent: 4218324 (1980-08-01), Hartmann et al.
patent: 4248648 (1981-02-01), Kopp
patent: 4384474 (1983-05-01), Kowalski
patent: 4385150 (1983-05-01), Miyake et al.
patent: 4451369 (1984-05-01), Sekino et al.
patent: 4511471 (1985-04-01), Müller
patent: 4540490 (1985-09-01), Shibata et al.
patent: 4547289 (1985-10-01), Okano et al.
patent: 4609465 (1986-09-01), Miller
patent: 4614109 (1986-09-01), Hofmann
patent: 4632745 (1986-12-01), Giuffrida et al.
patent: 4636296 (1987-01-01), Kunz
patent: 4642182 (1987-02-01), Drori
patent: 4647377 (1987-03-01), Miura
patent: 4650586 (1987-03-01), Ellis, III
patent: 4656865 (1987-04-01), Callan
patent: 4660411 (1987-04-01), Reid
patent: 4670145 (1987-06-01), Edwards
patent: 4673507 (1987-06-01), Brown
patent: 4687561 (1987-08-01), Kunz
patent: 4688511 (1987-08-01), Gerlach et al.
patent: 4718270 (1988-01-01), Storr
patent: 4744240 (1988-05-01), Reichelt
patent: 4756875 (1988-07-01), Tajima et al.
patent: 4763612 (1988-08-01), Iwanami
patent: 4767539 (1988-08-01), Ford
patent: 4779448 (1988-10-01), Gogins
patent: 4784771 (1988-11-01), Wathen et al.
patent: 4793932 (1988-12-01), Ford et al.
patent: 4797211 (1989-01-01), Ehrfeld et al.
patent: 4810384 (1989-03-01), Fabre
patent: 4812235 (1989-03-01), Seleman et al.
patent: 4816160 (1989-03-01), Ford et al.
patent: 4846970 (1989-07-01), Bertelsen et al.
patent: 4876006 (1989-10-01), Ohkubo et al.
patent: 4876012 (1989-10-01), Kopp et al.
patent: 4921610 (1990-05-01), Ford et al.
patent: 4931186 (1990-06-01), Ford et al.
patent: 4935143 (1990-06-01), Kopp et al.
patent: 4988444 (1991-01-01), Applegate et al.
patent: 4999038 (1991-03-01), Lundberg
patent: 5005430 (1991-04-01), Kibler et al.
patent: 5024762 (1991-06-01), Ford et al.
patent: 5066375 (1991-11-01), Parsi et al.
patent: 5066401 (1991-11-01), Muller et al.
patent: 5066402 (1991-11-01), Anselme et al.
patent: 5069065 (1991-12-01), Sprunt et al.
patent: 5076925 (1991-12-01), Roesink et al.
patent: 5079272 (1992-01-01), Allegrezza et al.
patent: 5094750 (1992-03-01), Kopp et al.
patent: 5104546 (1992-04-01), Filson et al.
patent: H1045 (1992-05-01), Wilson
patent: 5135663 (1992-08-01), Newberth, III et al.
patent: 5137631 (1992-08-01), Eckman et al.
patent: 5138870 (1992-08-01), Lyssy
patent: 5151191 (1992-09-01), Sunaoka et al.
patent: 5151193 (1992-09-01), Grobe et al.
patent: 5158721 (1992-10-01), Allegrezza et al.
patent: 5192456 (1993-03-01), Ishida et al.
patent: 5194149 (1993-03-01), Selbie et al.
patent: 5198116 (1993-03-01), Comstock et al.
patent: 5209852 (1993-05-01), Sunaoka et al.
patent: 5211823 (1993-05-01), Giuffrida et al.
patent: 5221478 (1993-06-01), Dhingra et al.
patent: 5227063 (1993-07-01), Langerak et al.
patent: 5248424 (1993-09-01), Cote et al.
patent: 5297420 (1994-03-01), Gilliland et al.
patent: 5320760 (1994-06-01), Freund et al.
patent: 5353630 (1994-10-01), Soda et al.
patent: 5361625 (1994-11-01), Ylvisaker
patent: 5364527 (1994-11-01), Zimmermann et al.
patent: 5389260 (1995-02-01), Hemp et al.
patent: 5401401 (1995-03-01), Hickok et al.
patent: 5403479 (1995-04-01), Smith et al.
patent: 5405528 (1995-04-01), Selbie et al.
patent: 5417101 (1995-05-01), Weich
patent: 5419816 (1995-05-01), Sampson et al.
patent: 5470469 (1995-11-01), Eckman
patent: 5477731 (1995-12-01), Mouton
patent: 5480553 (1996-01-01), Yamamori et al.
patent: 5531848 (1996-07-01), Brinda et al.
patent: 5531900 (1996-07-01), Raghavan et al.
patent: 5543002 (1996-08-01), Brinda et al.
patent: 5554283 (1996-09-01), Brinda et al.
patent: 5607593 (1997-03-01), Cote et al.
patent: 5639373 (1997-06-01), Mahendran et al.
patent: 5643455 (1997-07-01), Kopp et al.
patent: 5647988 (1997-07-01), Kawanishi et al.
patent: D396046 (1998-07-01), Scheel et al.
patent: 5783083 (1998-07-01), Henshaw et al.
patent: D396726 (1998-08-01), Sadr et al.
patent: D400890 (1998-11-01), Gambardella
patent: 5888401 (1999-03-01), Nguyen
patent: 5910250 (1999-06-01), Mahendran et al.
patent: 5914039 (1999-06-01), Mahendran
patent: 5918264 (1999-06-01), Drummond et al.
patent: 5942113 (1999-08-01), Morimura
patent: 5944997 (1999-08-01), Pedersen et al.
patent: 6024872 (2000-02-01), Mahendran
patent: 6039872 (2000-03-01), Wu et al.
patent: 6042677 (2000-03-01), Mahendran et al.
patent: 6048454 (2000-04-01), Jenkins
patent: 6077435 (2000-06-01), Beck et al.
patent: 6083393 (2000-07-01), Wu et al.
patent: 6146747 (2000-11-01), Wang et al.
patent: 6156200 (2000-12-01), Zha et al.
patent: 6159373 (2000-12-01), Beck et al.
patent: 6193890 (2001-02-01), Pedersen et al.
patent: 6202475 (2001-03-01), Selbie et al.
patent: 6254773 (2001-07-01), Biltoft
patent: 6294039 (2001-09-01), Mahendran et al.
patent: RE37549 (2002-02-01), Mahendran et al.
patent: 6354444 (2002-03-01), Mahendran
patent: 6440303 (2002-08-01), Spriegel
patent: D462699 (2002-09-01), Johnson et al.
patent: 6524481 (2003-02-01), Zha et al.
patent: 6555005 (2003-04-01), Zha et al.
patent: D478913 (2003-08-01), Johnson et al.
patent: 6620319 (2003-09-01), Behmann et al.
patent: 6641733 (2003-11-01), Zha et al.
patent: 6685832 (2004-02-01), Mahendran et al.
patent: 6783008 (2004-08-01), Zha et al.
patent: 6821420 (2004-11-01), Zha et al.
patent: 2002/0148767 (2002-10-01), Johnson et al.
patent: 2002/0195390 (2002-12-01), Zha et al.
patent: 2003/0057155 (2003-03-01), Husain et al.
patent: 2003/0075504 (2003-04-01), Zha et al.
patent: 2003/0089659 (2003-05-01), Zha et al.
patent: 2003/0136746 (2003-07-01), Behman et al.
patent: 2003/0178365 (2003-09-01), Zha et al.
patent: 2003/0205519 (2003-11-01), Zha et al.
patent: 2003/0226797 (2003-12-01), Phelps
patent: 2003/0234221 (2003-12-01), Johnson et al.
patent: 2004/0000520 (2004-01-01), Gallagher et al.
patent: 2004/0035782 (2004-02-01), Muller
patent: 4 117 422 (1992-11-01), None
patent: 126714 (1984-05-01), None
patent: 0 463 627 (1995-05-01), None
patent: 0 763 758 (1996-10-01), None
patent: 1 052 012 (2000-11-01), None
patent: 2 674 448 (1992-02-01), None
patent: 2 253 572 (1992-09-01), None
patent: 55-129107 (1980-10-01), None
patent: 58-088007 (1983-05-01), None
patent: 61-097005 (1986-05-01), None
patent: 61-107905 (1986-05-01), None
patent: 61-257203 (1986-11-01), None
patent: 61-263605 (1986-11-01), None
patent: 62-004408 (1987-01-01), None
patent: 62-114609 (1987-05-01), None
patent: 62-140607 (1987-06-01), None
patent: 62-179540 (1987-08-01), None
patent: 63-097634 (1988-04-01), None
patent: 01-307409 (1989-12-01), None
patent: 02-164423 (1990-06-01), None
patent: 02-284035 (1990-11-01), None
patent: 03-018373 (1991-01-01), None
patent: 03-028797 (1991-02-01), None
patent: 31-010445 (1991-05-01), None
patent: 04-310223 (1992-11-01), None
patent: 05-023557 (1993-02-01), None
patent: 05-157654 (1993-06-01), None
patent: 06-071120 (1994-03-01), None
patent: 06-114240 (1994-04-01), None
patent: 07-000770 (1995-01-01), None
patent: 07-275665 (1995-10-01), None
patent: 08-010585 (1996-01-01), None
patent: 09-141063 (1997-06-01), None
patent: 10-156149 (1998-06-01), None
patent: WO 90/00434 (1990-01-01), None
patent: WO 96/41676 (1996-12-01), None
Almulla et al., Desalination 153 (2002) 237-243.
Rosenberger et al., Desalination 151 (2002) 195-200.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of cleaning membranes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of cleaning membranes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of cleaning membranes will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3446787

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.