Assignee
ZENON ENVIRONMENTAL INC
CA·83 granted patents·2 pending applications·9,743 citations·filing 1987–2005
Top patents by PatentIndex Score
85 records- 0199US5783083AVertical cylindrical skein of hollow fiber membranes and method of maintaining clean fiber surfacesZENON ENVIRONMENTAL INC·Filed 1996·Granted Jul 21, 1998·303 cites·14 claims
- 0298US6706189B2Cyclic aeration system for submerged membrane modulesZENON ENVIRONMENTAL INC·Filed 2003·Granted Mar 16, 2004·146 cites·31 claims
- 0398US6685832B2Method of potting hollow fiber membranesZENON ENVIRONMENTAL INC·Filed 2002·Granted Feb 3, 2004·151 cites·18 claims
- 0498US6682652B2Apparatus for withdrawing permeate using an immersed vertical skein of hollow fiber membranesZENON ENVIRONMENTAL INC·Filed 2002·Granted Jan 27, 2004·129 cites·11 claims
- 0598US6645374B2Membrane module for gas transfer and membrane supported biofilm processZENON ENVIRONMENTAL INC·Filed 2003·Granted Nov 11, 2003·120 cites·11 claims
- 0698US6550747B2Cyclic aeration system for submerged membrane modulesZENON ENVIRONMENTAL INC·Filed 2001·Granted Apr 22, 2003·154 cites·23 claims
- 0798US6325928B1Immersed membrane element and moduleZENON ENVIRONMENTAL INC·Filed 2000·Granted Dec 4, 2001·182 cites·12 claims
- 0898US6294039B1Potted header for hollow fiber membranesZENON ENVIRONMENTAL INC·Filed 2000·Granted Sep 25, 2001·127 cites·2 claims
- 0998US6245239B1Cyclic aeration system for submerged membrane modulesZENON ENVIRONMENTAL INC·Filed 2000·Granted Jun 12, 2001·216 cites·8 claims
- 1098US6193890B1System for maintaining a clean skein of hollow fibers while filtering suspended solidsZENON ENVIRONMENTAL INC·Filed 1999·Granted Feb 27, 2001·243 cites·11 claims
- 1198US6042677APotted header for hollow fiber membranes and method for making itZENON ENVIRONMENTAL INC·Filed 1999·Granted Mar 28, 2000·196 cites·4 claims
- 1298US5944997ASystem for maintaining a clean skein of hollow fibers while filtering suspended solidsZENON ENVIRONMENTAL INC·Filed 1998·Granted Aug 31, 1999·244 cites·8 claims
- 1398US5910250ABaffle for conversion of fine bubbles to coarse while filtering with a vertical skein of hollow fibersZENON ENVIRONMENTAL INC·Filed 1997·Granted Jun 8, 1999·210 cites·9 claims
- 1498US5639373AVertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeateZENON ENVIRONMENTAL INC·Filed 1995·Granted Jun 17, 1997·354 cites·22 claims
- 1598US5501798AMicrofiltration enhanced reverse osmosis for water treatmentZENON ENVIRONMENTAL INC·Filed 1994·Granted Mar 26, 1996·233 cites·22 claims
- 1698US5248424AFrameless array of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeateZENON ENVIRONMENTAL INC·Filed 1992·Granted Sep 28, 1993·315 cites·24 claims
- 1797US7052610B2Immersed membrane filtration system and overflow processZENON ENVIRONMENTAL INC·Filed 2005·Granted May 30, 2006·69 cites·5 claims
- 1897US6964741B2Apparatus for withdrawing permeate using an immersed vertical skein of hollow fiber membranesZENON ENVIRONMENTAL INC·Filed 2003·Granted Nov 15, 2005·74 cites·7 claims
- 1997US6863823B2Inverted air box aerator and aeration method for immersed membraneZENON ENVIRONMENTAL INC·Filed 2002·Granted Mar 8, 2005·83 cites·14 claims
- 2097US6375848B1Water filtration using immersed membranesZENON ENVIRONMENTAL INC·Filed 1999·Granted Apr 23, 2002·178 cites·11 claims
- 2197US6361695B1Shipboard wastewater treatment systemZENON ENVIRONMENTAL INC·Filed 2000·Granted Mar 26, 2002·174 cites·37 claims
- 2297US6354444B1Hollow fiber membrane and braided tubular support thereforZENON ENVIRONMENTAL INC·Filed 1999·Granted Mar 12, 2002·241 cites·11 claims
- 2397USRE37549EVertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeateZENON ENVIRONMENTAL INC·Filed 1999·Granted Feb 19, 2002·179 cites·29 claims
- 2497US5403479AIn situ cleaning system for fouled membranesZENON ENVIRONMENTAL INC·Filed 1993·Granted Apr 4, 1995·242 cites·2 claims
- 2597US5254253AModular shipboard membrane bioreactor system for combined wastewater streamsZENON ENVIRONMENTAL INC·Filed 1992·Granted Oct 19, 1993·159 cites·20 claims
- 2696US6893568B1Immersed membrane filtration system and overflow processZENON ENVIRONMENTAL INC·Filed 2000·Granted May 17, 2005·104 cites·11 claims
- 2796US6863817B2Membrane bioreactor, process and aeratorZENON ENVIRONMENTAL INC·Filed 2002·Granted Mar 8, 2005·98 cites·20 claims
- 2896US6485645B1Biological process for removing phosphorus involving a membrane filterZENON ENVIRONMENTAL INC·Filed 2002·Granted Nov 26, 2002·123 cites·17 claims
- 2996US6406629B1Biological process for removing phosphorous involving a membrane filterZENON ENVIRONMENTAL INC·Filed 2000·Granted Jun 18, 2002·139 cites·12 claims
- 3096US6319411B1Method of maintaining clean vertical skeins of hollow fiber membranes and system thereforZENON ENVIRONMENTAL INC·Filed 1999·Granted Nov 20, 2001·137 cites·6 claims
- 3196US5914039AFiltration membrane with calcined α-alumina particles thereinZENON ENVIRONMENTAL INC·Filed 1997·Granted Jun 22, 1999·168 cites·12 claims
- 3295US7025885B2Water filtration using immersed membranesZENON ENVIRONMENTAL INC·Filed 2004·Granted Apr 11, 2006·74 cites·8 claims
- 3395US6899812B2Water filtration using immersed membranesZENON ENVIRONMENTAL INC·Filed 2002·Granted May 31, 2005·88 cites·9 claims
- 3495US6881343B2Cyclic aeration system for submerged membrane modulesZENON ENVIRONMENTAL INC·Filed 2003·Granted Apr 19, 2005·82 cites·7 claims
- 3595US6708957B2Moving aerator for immersed membranesZENON ENVIRONMENTAL INC·Filed 2002·Granted Mar 23, 2004·98 cites·19 claims
- 3695US6558549B2Membrane module for gas transfer and membrane supported biofilm processZENON ENVIRONMENTAL INC·Filed 2001·Granted May 6, 2003·73 cites·14 claims
- 3795US6303035B1Immersed membrane filtration processZENON ENVIRONMENTAL INC·Filed 1999·Granted Oct 16, 2001·145 cites·4 claims
- 3895US6214231B1System for operation of multiple membrane filtration assembliesZENON ENVIRONMENTAL INC·Filed 1999·Granted Apr 10, 2001·186 cites·22 claims
- 3995US6027649AProcess for purifying water using fine floc and microfiltration in a single tank reactorZENON ENVIRONMENTAL INC·Filed 1997·Granted Feb 22, 2000·123 cites·26 claims
- 4095US5182019ACartridge of hybrid frameless arrays of hollow fiber membranes and module containing an assembly of cartridgesZENON ENVIRONMENTAL INC·Filed 1992·Granted Jan 26, 1993·171 cites·31 claims
- 4194US7087173B2Inverted cavity aerator for membrane moduleZENON ENVIRONMENTAL INC·Filed 2004·Granted Aug 8, 2006·81 cites·4 claims
- 4294US7070695B2Ultrafiltration and microfiltration module and systemZENON ENVIRONMENTAL INC·Filed 2004·Granted Jul 4, 2006·57 cites·9 claims
- 4394US6814861B2Ultrafiltration and microfiltration module and systemZENON ENVIRONMENTAL INC·Filed 2002·Granted Nov 9, 2004·82 cites·10 claims
- 4494US6656356B2Aerated immersed membrane systemZENON ENVIRONMENTAL INC·Filed 2001·Granted Dec 2, 2003·121 cites·17 claims
- 4594US6120688APortable reverse osmosis unit for producing drinking waterZENON ENVIRONMENTAL INC·Filed 1998·Granted Sep 19, 2000·143 cites·17 claims
- 4694US5104535AFrameless array of hollow fiber membranes and module containing a stack of arraysZENON ENVIRONMENTAL INC·Filed 1990·Granted Apr 14, 1992·155 cites·23 claims
- 4793US5997745AMethod for producing high purity water using triple pass reverse osmosis (TPRO)ZENON ENVIRONMENTAL INC·Filed 1998·Granted Dec 7, 1999·141 cites·17 claims
- 4893US5151187AMembrane bioreactor system with in-line gas micronizerZENON ENVIRONMENTAL INC·Filed 1991·Granted Sep 29, 1992·90 cites·19 claims
- 4992US6589426B1Ultrafiltration and microfiltration module and systemZENON ENVIRONMENTAL INC·Filed 2000·Granted Jul 8, 2003·67 cites·20 claims
- 5092US6324898B1Method and apparatus for testing the integrity of filtering membranesZENON ENVIRONMENTAL INC·Filed 1999·Granted Dec 4, 2001·109 cites·15 claims
Showing the top 50 of 85 patent records by PatentIndex Score.
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