Assignee
HYDROTREAT INC
US·28 granted patents·878 citations·filing 1978–2010
Top patents by PatentIndex Score
28 records- 0197US6669843B2Apparatus for mixing fluidsHYDROTREAT INC·Filed 2001·Granted Dec 30, 2003·63 cites·12 claims
- 0296US6811713B2Method and apparatus for mixing fluids, separating fluids, and separating solids from fluidsHYDROTREAT INC·Filed 2003·Granted Nov 2, 2004·74 cites·20 claims
- 0396US5647977AMethod and apparatus for removing contaminants from industrial waste waterHYDROTREAT INC·Filed 1994·Granted Jul 15, 1997·118 cites·23 claims
- 0493US6805806B2Method and apparatus for treatment of wastewater employing membrane bioreactorsHYDROTREAT INC·Filed 2002·Granted Oct 19, 2004·103 cites·28 claims
- 0590US6811690B2Method and apparatus for mixing fluids, separating fluids, and separating solids from fluidsHYDROTREAT INC·Filed 2003·Granted Nov 2, 2004·36 cites·21 claims
- 0689US6962654B2Methods and apparatus for supplying high concentrations of dissolved oxygen and ozone for chemical and biological processesHYDROTREAT INC·Filed 2002·Granted Nov 8, 2005·50 cites·26 claims
- 0788US6960294B2Apparatus for the separation of solids from liquids by dissolved gas floatationHYDROTREAT INC·Filed 2002·Granted Nov 1, 2005·48 cites·27 claims
- 0887US6797179B2Method for removing dissolved metals from wastewater by electrocoagulationHYDROTREAT INC·Filed 2003·Granted Sep 28, 2004·29 cites·21 claims
- 0986US4517089AMethod and apparatus for constructing filter elementHYDROTREAT INC·Filed 1983·Granted May 14, 1985·47 cites·10 claims
- 1085US6582592B2Apparatus for removing dissolved metals from wastewater by electrocoagulationHYDROTREAT INC·Filed 2001·Granted Jun 24, 2003·26 cites·29 claims
- 1181US6811709B2Method and apparatus for mixing fluids, separating fluids, and separating solids from fluidsHYDROTREAT INC·Filed 2003·Granted Nov 2, 2004·16 cites·12 claims
- 1279US7993051B2Methods and apparatus for enhancing venturi suction in eductor mixersHYDROTREAT INC·Filed 2010·Granted Aug 9, 2011·4 cites·25 claims
- 1378US6875351B2Methods and apparatus for oil demulsification and separation of oil and suspended solids from produced waterHYDROTREAT INC·Filed 2002·Granted Apr 5, 2005·54 cites·27 claims
- 1477US7776213B2Apparatus for enhancing venturi suction in eductor mixersHYDROTREAT INC·Filed 2004·Granted Aug 17, 2010·16 cites·5 claims
- 1577US6808693B2Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas driveHYDROTREAT INC·Filed 2002·Granted Oct 26, 2004·22 cites·40 claims
- 1669US4235698AElectronic water treatment apparatusHYDROTREAT INC·Filed 1978·Granted Nov 25, 1980·22 cites·34 claims
- 1765US7285212B2Method and apparatus for treatment of wastewater employing membrane bioreactorsHYDROTREAT INC·Filed 2004·Granted Oct 23, 2007·8 cites·3 claims
- 1864US6254267B1Method and apparatus for mixing dry powder into liquidsHYDROTREAT INC·Filed 1998·Granted Jul 3, 2001·28 cites·35 claims
- 1959US4906361AApparatus for treating fluidsHYDROTREAT INC·Filed 1986·Granted Mar 6, 1990·15 cites·6 claims
- 2057US5038830APipe and sealing deviceHYDROTREAT INC·Filed 1988·Granted Aug 13, 1991·21 cites·12 claims
- 2156US7232524B2Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas driveHYDROTREAT INC·Filed 2004·Granted Jun 19, 2007·6 cites·3 claims
- 2256US6811699B2Method and apparatus for mixing fluids, separating fluids, and separating solids from fluidsHYDROTREAT INC·Filed 2003·Granted Nov 2, 2004·3 cites·41 claims
- 2354US6228257B1Apparatus for contacting fluids and solidsHYDROTREAT INC·Filed 1991·Granted May 8, 2001·15 cites·4 claims
- 2454US4686038AFilter apparatusHYDROTREAT INC·Filed 1985·Granted Aug 11, 1987·16 cites·4 claims
- 2553US5006243AFilter bag securing ringHYDROTREAT INC·Filed 1989·Granted Apr 9, 1991·14 cites·9 claims
- 2650US5124043AMethod for treating fluidsHYDROTREAT INC·Filed 1991·Granted Jun 23, 1992·12 cites·5 claims
- 2738US7243721B2Methods and apparatus for heating oil production reservoirsHYDROTREAT INC·Filed 2004·Granted Jul 17, 2007·7 cites·20 claims
- 2837US4565628AFilter apparatusHYDROTREAT INC·Filed 1984·Granted Jan 21, 1986·5 cites·6 claims
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