| Patent | Date |
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Spacer for filled cell electrodialysis
Grant 7,794,577 - Carson , et al. September 14, 2 | 2010-09-14 |
Device and method for electrodialysis
Grant 7,662,267 - Carson , et al. February 16, 2 | 2010-02-16 |
Water treatment/remediation system
Grant 7,371,326 - Dale May 13, 2 | 2008-05-13 |
Control of water treatment system with low level boron detection
Grant 7,264,737 - Godec , et al. September 4, 2 | 2007-09-04 |
EDI and related stacks and method and apparatus for preparing such
Grant 7,094,325 - Mack , et al. August 22, 2 | 2006-08-22 |
Ion exchange and electrochemical methods and devices employing one-step quaternized and polymerized anion selective polymers
Grant 7,087,654 - MacDonald , et al. August 8, 2 | 2006-08-08 |
Water treatment method for heavy oil production
App 20050022989 - Heins, William F. | 2005-02-03 |
Method and apparatus for preparing pure water
Grant 6,796,436 - Carson , et al. September 28, 2 | 2004-09-28 |
Reverse osmosis pretreatment using low pressure filtration
App 20040108277 - Krulik, Gerald A. | 2004-06-10 |
Water treatment method for heavy oil production
Grant 6,733,636 - Heins May 11, 2 | 2004-05-11 |
Filter cleaning method
Grant 6,723,246 - Krulik April 20, 2 | 2004-04-20 |
Simultaneous ammonia and fluoride treatment for wastewater
Grant 6,652,758 - Krulik November 25, 2 | 2003-11-25 |
System and method for removal of fluoride from wastewater using single fluoride sensing electrode
Grant 6,645,385 - Krulik , et al. November 11, 2 | 2003-11-11 |
Method for simultaneous removal of arsenic and fluoride from aqueous solutions
Grant 6,613,230 - Krulik , et al. September 2, 2 | 2003-09-02 |
Method of treating industrial waste waters
Grant 6,582,605 - Krulik , et al. June 24, 2 | 2003-06-24 |
Method and apparatus for preparing pure water
App 20030019818 - Carson, William W. ; et al. | 2003-01-30 |
Ion exchange and electrochemical methods and devices employing one-step quaternized and polymerized anion selective polymers
Grant 6,410,672 - MacDonald , et al. June 25, 2 | 2002-06-25 |
Electrodialysis including filled cell electrodialysis (electrodeionization)
Grant 6,126,805 - Batchelder , et al. October 3, 2 | 2000-10-03 |
Damped storage rack for nuclear fuel assemblies
Grant 6,009,136 - Loftis , et al. December 28, 1 | 1999-12-28 |
Electrodialysis including filled cell electrodialysis (Electrodeionization)
Grant 5,948,230 - McRae September 7, 1 | 1999-09-07 |
Membrane-frame for processes including electrodialysis
Grant 5,891,328 - Goldstein April 6, 1 | 1999-04-06 |
Multi-port multi-stream valve apparatus
Grant 5,702,582 - Goldstein , et al. December 30, 1 | 1997-12-30 |
Catalyst mediated method of interfacial polymerization on a microporous support, and polymers, fibers, films and membranes made by such method
Grant 5,693,227 - Costa December 2, 1 | 1997-12-02 |
Electrodialysis including filled cell electrodialysis (electrodeionization)
Grant 5,679,229 - Goldstein , et al. October 21, 1 | 1997-10-21 |
Electrodialysis including filled cell electrodialysis (electrodeionization)
Grant 5,679,228 - Elyanow , et al. October 21, 1 | 1997-10-21 |
Solvent extraction process using water absorbing solvent at preselected temperature
Grant 5,662,802 - Heins , et al. September 2, 1 | 1997-09-02 |
Salt basket for crystallizer and method of use in zero liquid discharge industrial facilities
Grant 5,656,161 - Solomon , et al. August 12, 1 | 1997-08-12 |
Nanofiltration apparatus and processes
Grant 5,616,249 - Hodgdon April 1, 1 | 1997-04-01 |
High ionic conductance ion exchange membranes and their preparation
Grant 5,510,394 - Hodgdon April 23, 1 | 1996-04-23 |
Electrodialysis including filled cell electrodialysis (electrodeionization)
Grant 5,503,729 - Elyanow , et al. April 2, 1 | 1996-04-02 |
Highly damped storage rack for nuclear fuel assemblies
Grant 5,384,813 - Loftis , et al. January 24, 1 | 1995-01-24 |
Polymers prepared from concentrated solutions of N',N'methylenebisacrylamide
Grant 5,354,903 - MacDonald October 11, 1 | 1994-10-11 |
Process for manufacturing continuous supported ion selective membranes using non-polymerizable high boiling point solvents
Grant 5,264,125 - MacDonald , et al. November 23, 1 | 1993-11-23 |
Electrodialysis method for demineralization of liquid, whey-based material
Grant 5,223,107 - Batchelder June 29, 1 | 1993-06-29 |
Cation exchange membranes
Grant 5,203,982 - MacDonald April 20, 1 | 1993-04-20 |
Process for manufacturing continuous, supported polymeric sheet from polymerizable liquid starting materials
Grant 5,194,189 - Papastavros , et al. March 16, 1 | 1993-03-16 |
Polyamine-polyamide composite nanofiltration membrane for water softening
Grant 5,152,901 - Hodgdon October 6, 1 | 1992-10-06 |
Selectively permeable barriers
Grant 5,147,553 - Waite September 15, 1 | 1992-09-15 |
Process for manufacturing continuous supported ion selective membranes using non-polymerizable high boiling point solvents
Grant 5,145,618 - MacDonald , et al. September 8, 1 | 1992-09-08 |
Carbon monitor containing anion exchange resin
Grant 5,141,717 - McRae August 25, 1 | 1992-08-25 |
Aliphatic anion exchange polymeric membranes having improved resistance to fouling
Grant 5,137,925 - Hodgdon August 11, 1 | 1992-08-11 |
High ion exchange capacity polyelectrolytes having high crosslink densities and caustic stability
Grant 5,118,717 - Hodgdon , et al. June 2, 1 | 1992-06-02 |
Extrusion canister
Grant D325,740 - Loftis April 28, 1 | 1992-04-28 |
Asymmetric semipermeable poly(aryletherketone) membranes and method of producing same
Grant 5,089,192 - Costa February 18, 1 | 1992-02-18 |
Composite semipermeable membrane created by precipitation of emulsion polymers onto base film microporous surfaces
Grant 5,075,011 - Waite December 24, 1 | 1991-12-24 |
Introducing and removing ion-exchange and other particulates from an assembled electrodeionization stack
Grant 5,066,375 - Parsi , et al. November 19, 1 | 1991-11-19 |
Apparatus for manufacturing continuous, supported polymeric sheets from polymerizable liquid starting materials
Grant 5,056,996 - Papastavros , et al. October 15, 1 | 1991-10-15 |
Acid efficient membrane for use in electrodialysis for recovery of acid
Grant 5,045,171 - MacDonald September 3, 1 | 1991-09-03 |
Anion selective polymers prepared from concentrated solutions of N,N'-methylenebisacrylamide
Grant 5,037,858 - MacDonald August 6, 1 | 1991-08-06 |
Electrodeionization polarity reversal apparatus and process
Grant 5,026,465 - Katz , et al. June 25, 1 | 1991-06-25 |
Bottled water dispenser
Grant D313,330 - Brusa January 1, 1 | 1991-01-01 |
Process for monitoring the quality of water
Grant 4,977,094 - Goldstein , et al. December 11, 1 | 1990-12-11 |
Apparatus and process for the removal of acidic and basic gases from fluid mixtures using bipolar membranes
Grant 4,969,983 - Parsi November 13, 1 | 1990-11-13 |
Chlorine tolerant composite semipermeable membrane
Grant 4,913,816 - Waite * April 3, 1 | 1990-04-03 |
Apparatus for the removal of dissolved solids from liquids using bipolar membranes
Grant 4,871,431 - Parsi October 3, 1 | 1989-10-03 |
Novel bipolar membranes and process of manufacture
Grant 4,851,100 - Hodgdon , et al. July 25, 1 | 1989-07-25 |
Acid efficient membrane for use in electrodialysis for recovery of acid
Grant 4,822,471 - MacDonald April 18, 1 | 1989-04-18 |
Process for preparing microporous polyvinylidene fluoride membranes
Grant 4,806,291 - Susa February 21, 1 | 1989-02-21 |
Composite semipermeable membrane
Grant 4,802,984 - Waite February 7, 1 | 1989-02-07 |
Recovering free organic acids from solutions in which they occur with other organic matter
Grant 4,781,809 - Falcone, Jr. November 1, 1 | 1988-11-01 |
Process for preparing microporous polyvinylidene fluoride membranes
Grant 4,775,703 - Susa October 4, 1 | 1988-10-04 |
Water cooler and carbonator
Grant 4,764,315 - Brusa August 16, 1 | 1988-08-16 |
Spiral wound pressure membrane module
Grant 4,735,717 - Sims April 5, 1 | 1988-04-05 |
Cell for electrically controlled transdermal drug delivery
Grant 4,731,049 - Parsi March 15, 1 | 1988-03-15 |
Renaturing reversibly denatured polypeptides and proteins by electrodialysis of solutions thereof in denaturants
Grant 4,678,553 - Mandle , et al. July 7, 1 | 1987-07-07 |
Isoelectric focusing apparatus
Grant 4,673,483 - Mandle June 16, 1 | 1987-06-16 |
Process and apparatus for electrically desorbing components selectively sorbed on an electrolytically conducting barrier
Grant 4,661,224 - Goldstein , et al. * April 28, 1 | 1987-04-28 |
Decontamination of a radioactive waste liquid by electrodialysis
Grant 4,645,625 - Lundstrom February 24, 1 | 1987-02-24 |
Device for compressing a pair of plates
Grant 4,622,123 - Nejame, Jr. November 11, 1 | 1986-11-11 |
Synthesis of highly cross-linked cation-exchange polymers from an aqueous solution
Grant 4,617,321 - MacDonald October 14, 1 | 1986-10-14 |
Microliter scale electrodialysis apparatus
Grant 4,614,576 - Goldstein September 30, 1 | 1986-09-30 |
Electrodialysis apparatus and process
Grant 4,608,140 - Goldstein August 26, 1 | 1986-08-26 |
Process and apparatus for electrically desorbing components selectively sorbed on granules
Grant 4,594,135 - Goldstein June 10, 1 | 1986-06-10 |
One step process for preparing anion exchange polymers
Grant 4,587,269 - Thomas, Jr. May 6, 1 | 1986-05-06 |
Process and apparatus for electrically desorbing components selectively sorbed on an electrolytically conducting barrier
Grant 4,584,075 - Goldstein , et al. April 22, 1 | 1986-04-22 |
Electrolytic process for desulphurization and seed regeneration in coal fired magnetohydrodynamic (MHD) power generation systems
Grant 4,528,173 - Seamans July 9, 1 | 1985-07-09 |
Ion-exchange membranes reinforced with non-woven carbon fibers
Grant 4,505,797 - Hodgdon , et al. March 19, 1 | 1985-03-19 |
Separation of proteins using electrodialysis - isoelectric focusing combination
Grant 4,441,978 - Jain April 10, 1 | 1984-04-10 |
Electrodialysis preparation of purified AHF concentrate
Grant 4,435,318 - Pabst , et al. March 6, 1 | 1984-03-06 |
Selected recovery of proteins from fermentation broths
Grant 4,426,323 - Jain * January 17, 1 | 1984-01-17 |
Separation of proteins using electrodialysis-isoelectric focusing combination
Grant 4,396,477 - Jain August 2, 1 | 1983-08-02 |
Multi-stage electrodialysis stack electrode reversal system and method of operation
Grant 4,381,232 - Brown April 26, 1 | 1983-04-26 |
Synthesis of water soluble cross-linkers and their use in the manufacture of anionic polymers
Grant 4,374,720 - MacDonald February 22, 1 | 1983-02-22 |
Fractionation of protein mixtures
Grant 4,351,710 - Jain * September 28, 1 | 1982-09-28 |
Fractionation of protein mixtures
Grant 4,322,275 - Jain March 30, 1 | 1982-03-30 |
Fractionation of protein mixtures by salt addition followed by dialysis treatment
Grant 4,321,192 - Jain March 23, 1 | 1982-03-23 |
Synthesis of water soluble cross-linkers and their use in the manufacture of anionic polymers
Grant 4,310,631 - MacDonald January 12, 1 | 1982-01-12 |
Process for the preferential separation of fructose from glucose
Grant 4,299,677 - Venkatasubramanian , et al. November 10, 1 | 1981-11-10 |
Electrodialysis process for silica removal
Grant 4,298,442 - Giuffrida November 3, 1 | 1981-11-03 |
Synthesis of water soluble cross-linkers and their use in the manufacture of anionic polymers
Grant 4,275,227 - MacDonald June 23, 1 | 1981-06-23 |
Corrosion resistant electrode connector assembly
Grant 4,255,012 - Parent , et al. March 10, 1 | 1981-03-10 |
Process and apparatus for controlling impurities and pollution from membrane chlor-alkali cells
Grant 4,242,185 - McRae December 30, 1 | 1980-12-30 |
Electrodialysis membranes of high interstitial molality based upon methacrylate ester derivatives
Grant 4,231,855 - Hodgdon , et al. November 4, 1 | 1980-11-04 |
Process for chloro-alkali electrolysis cell
Grant 4,217,186 - McRae August 12, 1 | 1980-08-12 |
Ion exchange resin containing activated carbon
Grant 4,216,073 - Goldstein August 5, 1 | 1980-08-05 |
Fluid distribution cell module
Grant 4,202,772 - Goldstein May 13, 1 | 1980-05-13 |
Heat pipe recuperator
Grant 4,183,399 - Seehausen January 15, 1 | 1980-01-15 |
Apparatus for treating whey
Grant 4,180,451 - McRae December 25, 1 | 1979-12-25 |
Chlor-alkali electrolysis cell
Grant 4,173,524 - McRae November 6, 1 | 1979-11-06 |
Process for treating whey
Grant 4,146,455 - McRae March 27, 1 | 1979-03-27 |
Combustion cone for chemical analysis instrument
Grant 4,133,641 - Lueck January 9, 1 | 1979-01-09 |
Electrodialysis cell electrode reversal and anolyte recirculation system
Grant 4,115,225 - Parsi September 19, 1 | 1978-09-19 |
Ion exchange membranes based upon polyphenylene sulfide
Grant 4,110,265 - Hodgdon August 29, 1 | 1978-08-29 |
Electrode frame for use in an electrolytic filter press cell apparatus or the like
Grant D248,157 - Ganzi , et al. June 13, 1 | 1978-06-13 |
Sealing gasket for chamber wall
Grant 4,067,794 - Ganzi , et al. January 10, 1 | 1978-01-10 |
Ion exchange membranes having a macroporous surface area
Grant 3,926,864 - Hodgdon, Jr. December 16, 1 | 1975-12-16 |
Method and apparatus for separating weakly ionizable substances from fluids containing the same
Grant 3,896,015 - McRae July 22, 1 | 1975-07-22 |
Organic Carbon Method And Analyzer
Grant 3,840,341 - Rogers October 8, 1 | 1974-10-08 |
Process For Defouling Anion Exchange Resins With Chlorine Dioxide
Grant 3,787,339 - Hodgdon, Jr. , et al. January 22, 1 | 1974-01-22 |
Temperature-compensated Current Reference
Grant 3,700,934 - Swain October 24, 1 | 1972-10-24 |
Membrane Support
Grant 3,695,444 - Iaconelli October 3, 1 | 1972-10-03 |
Bifunctional Cation Exchange Membranes And Their Use In Electrolyticcells
Grant 3,657,104 - Hodgdon, Jr. April 18, 1 | 1972-04-18 |
Hydrazine Manufacture
Grant 3,616,312 - McGriff , et al. October 26, 1 | 1971-10-26 |
Apparatus For Evaporative Separation Of Liquids Through Microporous Panels
Grant 3,608,610 - Greatorex , et al. September 28, 1 | 1971-09-28 |
Method Of Making Stable Laminated Cation-exchange Membranes
Grant 3,607,706 - Eisenmann , et al. September 21, 1 | 1971-09-21 |
Battery Cell
Grant 3,607,417 - McRae , et al. September 21, 1 | 1971-09-21 |
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