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Showing 1 to 20 of 512 results

PATENT /PUB No. Country Patent Title Patent Owner Filing Date Issue/Pub Date Status
8840783 US Water treatment membrane cleaning with pulsed airlift pump Feb 12, 2013 Sep 23, 2014 Granted
6284124 US Electrodeionization apparatus and method Jan 29, 1999 Sep 4, 2001 Granted
5895570 US Modular filtering system Feb 9, 1996 Apr 20, 1999 Granted
10723645 US Concentration of wastewater to reduce flow rate, cost, and footprint of treatment system Nov 8, 2018 Jul 28, 2020 Granted
5906436 US Composting system Nov 3, 1997 May 25, 1999 Granted
8372276 US Membrane cleaning with pulsed airlift pump Nov 17, 2011 Feb 12, 2013 Granted
9725343 US System and method for measuring and treating a liquid stream Jun 16, 2014 Aug 8, 2017 Granted
9359239 US Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods May 12, 2014 Jun 7, 2016 Granted
7223340 US Hollow fibre restraining system Feb 11, 2005 May 29, 2007 Granted
11020735 US Ion exchange resin transportation and storage Feb 12, 2019 Jun 1, 2021 Granted
11753322 US Side stream treatment for overflow Apr 30, 2020 Sep 12, 2023 Granted
6047768 US Process and apparatus for treating waste May 6, 1997 Apr 11, 2000 Granted
11498752 US Digester cover left-in-place ballast ring May 14, 2020 Nov 15, 2022 Granted
10730013 US Use of porous glass media for a biofilter to remove odorous compounds from an air stream Oct 19, 2018 Aug 4, 2020 Granted
10159932 US Use of porous glass media for a biofilter to remove odorous compounds from an air stream Oct 22, 2015 Dec 25, 2018 Granted
7018533 US High solids module Mar 16, 2004 Mar 28, 2006 Granted
6159373 US Cleaning of hollow fibre membranes Aug 8, 1997 Dec 12, 2000 Granted
7022269 US Activated carbon for odor control and method for making same Dec 9, 2004 Apr 4, 2006 Granted
8101058 US Apparatus for fluid purification May 1, 2007 Jan 24, 2012 Granted
7160463 US Methods of minimizing the effect of integrity loss in hollow fibre membrane modules Dec 16, 2004 Jan 9, 2007 Granted

Showing 1 to 20 of 512 results

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