On-site wastewater treatment using a functionalized green filtration media sorption field Grant US-8101079-B1 United States of America 24 Jan 2012
Green sorption material mixes for water treatment Grant US-8002984-B1 United States of America 23 Aug 2011
Functionalized green filtration media for passive underground drainfield for septic tank… Grant US-7955507-B2 United States of America 07 Jun 2011
Passive underground drainfield for septic tank nutrient removal using functionalized… Grant US-7927484-B2 United States of America 19 Apr 2011