PATENTS RELATED TO ULTRAFILTRATION

Although it is not necessary for a patent agent to have personal experience with the specific subject matter, it has its advantages. Dr. Demchick's experience includes laboratory experience involving

Dr. Demchick is a scientist with a quarter of a century of research experience in academic, industrial and governmental settings.

If you are considering patent protection for an invention, Dr. Demchick will be glad to discuss the matter with you. There is no charge for an initial discussion.

The following sampling is to give you some sense of the types of ultrafiltration related inventions which have received United States patent protection. The patent list is not exhaustive and is certainly not a substitute for a proper patent search . It should be noted that only U.S. Patents are included.

It should be noted that spelling, form and typographical errors in the original patents are preserved here.

Process for the production in continuous of hydrocarbons from synthesis gas in slurry reactors and for the separation of the liquid phase produced from the solid phase (United States Patent 7,144,924)

Melt-spun polysulfone semipermeable membranes and methods for making the same (United States Patent 7,144,505)

Membrane cascade-based separation (United States Patent 7,141,171)

Process for extraction of .beta.-glucan from cereals and products obtained therefrom (United States Patent 7,138,519)

Method and apparatus for ultrafiltration utilizing a peripheral access dual lumen venous cannula (United States Patent 7,135,008)

Safety device for a blood treatment machine and a method of increasing the safety of a blood treatment machine (United States Patent 7,131,957)

Dialysis machine and method of controlling it (United States Patent 7,131,956)

Use of secondary cell wall polymer of procaryotic microorganisms (United States Patent 7,125,707)

Universal procedure for refolding recombinant proteins (United States Patent 7,119,166)

Pharmaceutical compositions containing plasma protein (United States Patent 7,119,124)

Process for removing protein aggregates and virus from a protein solution (United States Patent 7,118,675)

Energy-efficient biological treatment with membrane filtration (United States Patent 7,118,674)

Volumetric fluid balance control for extracorporeal blood treatment (United States Patent 7,112,273)

High-resolution virus removal methodology and filtration capsule useful therefor (United States Patent 7,108,791)

Device and process for electrodialysis of ultrafiltration premeate of electrocoat paint (United States Patent 7,108,772)

Process for debittering peanut hearts (United States Patent 7,097,874)

Method of deflavoring whey protein (United States Patent 7,094,439)

Processes for obtaining sterols and polar lipids from vegetable oil lecithin fractions (United States Patent 7,091,012)

Oilseed processing (United States Patent 7,090,887)

Method of promoting natural bypass (United States Patent 7,087,577)

Process for manufacturing a soy protein concentrate having high isoflavone content (United States Patent 7,083,819)

Process for debittering peanut hearts (United States Patent 7,081,264)

Recovery of linear nucleic acids by salt dilution and/or reduced pressure prior to continuous pressure differential ultrafiltration (United States Patent 7,074,333)

Oligosaccharide synthesizer (United States Patent 7,070,988)

Micro-filtration (United States Patent 7,066,336)

Hemoconcentrator in extracorporeal blood circuit (United States Patent 7,063,816)

Immersed membrane filtration system and overflow process (United States Patent 7,052,610)

Ultrafiltration membrane, device, bioartificial organ, and methods (United States Patent 7,048,856)

Flexible processing apparatus for isolating and purifying viruses, soluble proteins and peptides from plant sources (United States Patent 7,048,211)

Method of deflavoring soy-derived materials (United States Patent 7,045,163)

Process for producing sugars and acids-rich juice and phytochemical-rich juice (United States Patent 7,022,368)

Treatment of shipboard-generated oily wastewaters (United States Patent 7,018,539)

Device and a method for determining blood recirculation in a vascular access (United States Patent 7,001,353)

Screening of xenobiotics and endogenous compounds for metabolic transformation, formation of toxic metabolites, and bioavailability (United States Patent 6,995,022)

Anti-ulcer pharmaceutical composition and the preparation thereof (United States Patent 6,991,815)

Skinned hollow fiber membrane and method of manufacture (United States Patent 6,977,043)

Compounds inhibiting COX-2 and iNOS promoter activities (United States Patent 6,969,532)

Production of a zeolite-containing solid (United States Patent 6,967,181)

Anti-ulcer pharmaceutical composition and the preparation thereof (United States Patent 6,962,719)

Method for preparing nicotianamine or nicotianamine-containing product (United States Patent 6,949,263)

Apparatus for producing USP or WFI purified water (United States Patent 6,949,192)

Apparatus and method for selective reduction of segmental intracellular and extracellular edema (United States Patent 6,949,078)

Bioartificial filtration device for filtering blood to mimic kidney function (United States Patent 6,942,879)

System for treating tissue swelling (United States Patent 6,942,634)

Method for determining a treatment parameter on a haemofiltration device, and haemofiltration device for applying the method (United States Patent 6,939,471)

Carbohydrate purification using ultrafiltration, reverse osmosis and nanofiltration (United States Patent 6,936,173)

Device and assembly for cross-flow filtration (United States Patent 6,929,743)

Method and apparatus for filtering a chemical polishing slurry of a wafer fabrication process (United States Patent 6,929,532)

Skinned hollow fiber membrane and method of manufacture (United States Patent 6,921,482)

Water filtering module with hollow fibers (United States Patent 6,911,147)

Preparation of metal chalcogenide dispersions (United States Patent 6,911,081)

Process for debittering peanut hearts (United States Patent 6,908,637)

Flexible processing apparatus for isolating and purifying viruses, soluble proteins and peptides from plant sources (United States Patent 6,906,172)

Dietary fiber and oligosaccharides from ginseng and process for preparation thereof (United States Patent 6,899,902)

Water filtering device (United States Patent 6,899,809)

Immersed membrane filtration system and overflow process (United States Patent 6,893,568)

Method and apparatus for vein fluid removal in heart failure (United States Patent 6,890,315)

Porous poly(aryl ether ketone) membranes, processes for their preparation and use thereof (United States Patent 6,887,408)

Blood pump having a disposable blood passage cartridge with integrated pressure sensors (United States Patent 6,887,214)

Hydrogen-dissolved water production apparatus (United States Patent 6,884,344)

Method for recycling aqueous paint (United States Patent 6,881,436)

Melt-spun polysulfone semipermeable membranes and methods for making the same (United States Patent 6,881,337)

Process for the production of virus-inactivated human gammaglobulin G (United States Patent 6,875,848)

Method for producing polylactic acid and corresponding device (United States Patent 6,875,839)

Method of using high molecular weight water soluble polymers in membrane bioreactor systems (United States Patent 6,872,312)

Methods of synthesizing cell-free protein (United States Patent 6,869,774)

Method and device for intravascular plasma fluid removal (United States Patent 6,869,412)

Pump for low flow rates (United States Patent 6,860,993)

Process for preparing solutions of anionic organic compounds (United States Patent 6,860,906)

Process for the preparation of ultrafiltration membranes of polyacrylonitrile, using malic acid as an additive (United States Patent 6,858,141)

Filter module having a closure element (United States Patent 6,858,137)

UV-assisted grafting of PES and PSF membranes (United States Patent 6,852,769)

Cleaning agent and method for cleaning ultrafiltration membranes in electrophoretic dip coating installations (United States Patent 6,843,856)

Method for sensing stickies (United States Patent 6,841,390)

Highly permeable composite reverse osmosis membrane and method of producing the same (United States Patent 6,837,381)

Production of gluconate salts (United States Patent 6,828,130)

Soy protein concentrate having high isoflavone content and process for its manufacture (United States Patent 6,818,246)

Water purification pack (United States Patent 6,814,724)

Method and apparatus for treatment of wastewater employing membrane bioreactors (United States Patent 6,805,806)

Specialized hollow fiber membranes for in-vivo plasmapheresis and ultrafiltration (United States Patent 6,802,971)

Specialized hollow fiber membranes for in-vivo plasmapheresis and ultrafiltration (United States Patent 6,802,820)

Anti-ulcer pharmaceutical composition and the preparation thereof (United States Patent 6,800,304)

Degumming of edible oils by ultrafiltration (United States Patent 6,797,172)

Method of removing n-terminal alanine residues from polypeptides with aeromonas aminopeptidase (United States Patent 6,794,159)

Immersed membrane element and module (United States Patent 6,790,360)

Method of deflavoring soy-derived materials (United States Patent 6,787,173)

Safety device for a blood treatment machine and a method of increasing the safety of a blood treatment machine (United States Patent 6,767,333)

Pigment extraction system and method (United States Patent 6,764,703)

Method of forming well(s) containing filtration devices (United States Patent 6,764,653)

Method of plasmid recovery and apparatus for doing so (United States Patent 6,759,233)

Making a variety of L-lysine feed supplements (United States Patent 6,756,510)

Filter device with an electrically grounded ceramic membrane filter element (United States Patent 6,752,925)

System and method for producing high purity colloidal silica and potassium hydroxide (United States Patent 6,747,065)

Method of measuring transcutaneous access blood flow (United States Patent 6,746,407)

Pharmaceutical compositions containing plasma protein (United States Patent 6,743,826)

Method of removing N-terminal alanine residues from polypeptides with Aeromonas aminopeptidase (United States Patent 6,743,600)

Dialyzing system and method of operating the same (United States Patent 6,733,676)

Hemofiltration systems, methods and devices used to treat inflammatory mediator related disease (United States Patent 6,730,266)

Method of using water soluble cationic polymers in membrane biological reactors (United States Patent 6,723,245)

Process for the preparation of solutions of anionic organic compounds (United States Patent 6,719,906)

Process for the production in continuous of hydrocarbons from synthesis gas in slurry reactors and for the separation of the liquid phase produced from the solid phase (United States Patent 7,144,924)

Melt-spun polysulfone semipermeable membranes and methods for making the same (United States Patent 7,144,505)

Membrane cascade-based separation (United States Patent 7,141,171)

Process for extraction of .beta.-glucan from cereals and products obtained therefrom (United States Patent 7,138,519)

Method and apparatus for ultrafiltration utilizing a peripheral access dual lumen venous cannula (United States Patent 7,135,008)

Safety device for a blood treatment machine and a method of increasing the safety of a blood treatment machine (United States Patent 7,131,957)

Dialysis machine and method of controlling it (United States Patent 7,131,956)

Use of secondary cell wall polymer of procaryotic microorganisms (United States Patent 7,125,707)

Universal procedure for refolding recombinant proteins (United States Patent 7,119,166)

Pharmaceutical compositions containing plasma protein (United States Patent 7,119,124)

Process for removing protein aggregates and virus from a protein solution (United States Patent 7,118,675)

Energy-efficient biological treatment with membrane filtration (United States Patent 7,118,674)

Volumetric fluid balance control for extracorporeal blood treatment (United States Patent 7,112,273)

High-resolution virus removal methodology and filtration capsule useful therefor (United States Patent 7,108,791)

Device and process for electrodialysis of ultrafiltration premeate of electrocoat paint (United States Patent 7,108,772)

Process for debittering peanut hearts (United States Patent 7,097,874)

Method of deflavoring whey protein (United States Patent 7,094,439)

Processes for obtaining sterols and polar lipids from vegetable oil lecithin fractions (United States Patent 7,091,012)

Oilseed processing (United States Patent 7,090,887)

Method of promoting natural bypass (United States Patent 7,087,577)

Process for manufacturing a soy protein concentrate having high isoflavone content (United States Patent 7,083,819)

Process for debittering peanut hearts (United States Patent 7,081,264)

Recovery of linear nucleic acids by salt dilution and/or reduced pressure prior to continuous pressure differential ultrafiltration (United States Patent 7,074,333)

Oligosaccharide synthesizer (United States Patent 7,070,988)

Micro-filtration (United States Patent 7,066,336)

Hemoconcentrator in extracorporeal blood circuit (United States Patent 7,063,816)

Immersed membrane filtration system and overflow process (United States Patent 7,052,610)

Ultrafiltration membrane, device, bioartificial organ, and methods (United States Patent 7,048,856)

Flexible processing apparatus for isolating and purifying viruses, soluble proteins and peptides from plant sources (United States Patent 7,048,211)

Method of deflavoring soy-derived materials (United States Patent 7,045,163)

Process for producing sugars and acids-rich juice and phytochemical-rich juice (United States Patent 7,022,368)

Treatment of shipboard-generated oily wastewaters (United States Patent 7,018,539)

Device and a method for determining blood recirculation in a vascular access (United States Patent 7,001,353)

Screening of xenobiotics and endogenous compounds for metabolic transformation, formation of toxic metabolites, and bioavailability (United States Patent 6,995,022)

Anti-ulcer pharmaceutical composition and the preparation thereof (United States Patent 6,991,815)

Skinned hollow fiber membrane and method of manufacture (United States Patent 6,977,043)

Compounds inhibiting COX-2 and iNOS promoter activities (United States Patent 6,969,532)

Production of a zeolite-containing solid (United States Patent 6,967,181)

Anti-ulcer pharmaceutical composition and the preparation thereof (United States Patent 6,962,719)

Method for preparing nicotianamine or nicotianamine-containing product (United States Patent 6,949,263)

Apparatus for producing USP or WFI purified water (United States Patent 6,949,192)

Apparatus and method for selective reduction of segmental intracellular and extracellular edema (United States Patent 6,949,078)

Bioartificial filtration device for filtering blood to mimic kidney function (United States Patent 6,942,879)

System for treating tissue swelling (United States Patent 6,942,634)

Method for determining a treatment parameter on a haemofiltration device, and haemofiltration device for applying the method (United States Patent 6,939,471)

Carbohydrate purification using ultrafiltration, reverse osmosis and nanofiltration (United States Patent 6,936,173)

Device and assembly for cross-flow filtration (United States Patent 6,929,743)

Method and apparatus for filtering a chemical polishing slurry of a wafer fabrication process (United States Patent 6,929,532)

Skinned hollow fiber membrane and method of manufacture (United States Patent 6,921,482)

Water filtering module with hollow fibers (United States Patent 6,911,147)

Preparation of metal chalcogenide dispersions (United States Patent 6,911,081)

Process for debittering peanut hearts (United States Patent 6,908,637)

Flexible processing apparatus for isolating and purifying viruses, soluble proteins and peptides from plant sources (United States Patent 6,906,172)

Dietary fiber and oligosaccharides from ginseng and process for preparation thereof (United States Patent 6,899,902)

Water filtering device (United States Patent 6,899,809)

Immersed membrane filtration system and overflow process (United States Patent 6,893,568)

Method and apparatus for vein fluid removal in heart failure (United States Patent 6,890,315)

Porous poly(aryl ether ketone) membranes, processes for their preparation and use thereof (United States Patent 6,887,408)

Blood pump having a disposable blood passage cartridge with integrated pressure sensors (United States Patent 6,887,214)

Hydrogen-dissolved water production apparatus (United States Patent 6,884,344)

Method for recycling aqueous paint (United States Patent 6,881,436)

Melt-spun polysulfone semipermeable membranes and methods for making the same (United States Patent 6,881,337)

Process for the production of virus-inactivated human gammaglobulin G (United States Patent 6,875,848)

Method for producing polylactic acid and corresponding device (United States Patent 6,875,839)

Method of using high molecular weight water soluble polymers in membrane bioreactor systems (United States Patent 6,872,312)

Methods of synthesizing cell-free protein (United States Patent 6,869,774)

Method and device for intravascular plasma fluid removal (United States Patent 6,869,412)

Pump for low flow rates (United States Patent 6,860,993)

Process for preparing solutions of anionic organic compounds (United States Patent 6,860,906)

Process for the preparation of ultrafiltration membranes of polyacrylonitrile, using malic acid as an additive (United States Patent 6,858,141)

Filter module having a closure element (United States Patent 6,858,137)

UV-assisted grafting of PES and PSF membranes (United States Patent 6,852,769)

Cleaning agent and method for cleaning ultrafiltration membranes in electrophoretic dip coating installations (United States Patent 6,843,856)

Method for sensing stickies (United States Patent 6,841,390)

Highly permeable composite reverse osmosis membrane and method of producing the same (United States Patent 6,837,381)

Production of gluconate salts (United States Patent 6,828,130)

Soy protein concentrate having high isoflavone content and process for its manufacture (United States Patent 6,818,246)

Water purification pack (United States Patent 6,814,724)

Method and apparatus for treatment of wastewater employing membrane bioreactors (United States Patent 6,805,806)

Specialized hollow fiber membranes for in-vivo plasmapheresis and ultrafiltration (United States Patent 6,802,971)

Specialized hollow fiber membranes for in-vivo plasmapheresis and ultrafiltration (United States Patent 6,802,820)

Anti-ulcer pharmaceutical composition and the preparation thereof (United States Patent 6,800,304)

Degumming of edible oils by ultrafiltration (United States Patent 6,797,172)

Method of removing n-terminal alanine residues from polypeptides with aeromonas aminopeptidase (United States Patent 6,794,159)

Immersed membrane element and module (United States Patent 6,790,360)

Method of deflavoring soy-derived materials (United States Patent 6,787,173)

Safety device for a blood treatment machine and a method of increasing the safety of a blood treatment machine (United States Patent 6,767,333)

Pigment extraction system and method (United States Patent 6,764,703)

Method of forming well(s) containing filtration devices (United States Patent 6,764,653)

Method of plasmid recovery and apparatus for doing so (United States Patent 6,759,233)

Making a variety of L-lysine feed supplements (United States Patent 6,756,510)

Filter device with an electrically grounded ceramic membrane filter element (United States Patent 6,752,925)

System and method for producing high purity colloidal silica and potassium hydroxide (United States Patent 6,747,065)

Method of measuring transcutaneous access blood flow (United States Patent 6,746,407)

Pharmaceutical compositions containing plasma protein (United States Patent 6,743,826)

Method of removing N-terminal alanine residues from polypeptides with Aeromonas aminopeptidase (United States Patent 6,743,600)

Dialyzing system and method of operating the same (United States Patent 6,733,676)

Hemofiltration systems, methods and devices used to treat inflammatory mediator related disease (United States Patent 6,730,266)

Method of using water soluble cationic polymers in membrane biological reactors (United States Patent 6,723,245)

Process for the preparation of solutions of anionic organic compounds (United States Patent 6,719,906)

Although his recognition as a registered patent agent permits him to represent others in all patent matters before the United States Patent and Trademark Office, Dr. Demchick limits his practice to patent matters involving inventions for which he is confident that his expertise will allow him to serve his client well. He will gladly discuss whether he is comfortable handling cases involving inventions in a particular field. He will err on the side of declining cases if he has uncertainty about his ability to do what is needed in the case. Dr. Demchick does not represent clients in court. However, he refers clients to a patent attorney who does represent others in court, if it appears likely that patent related representation in court is appropriate. Dr. Demchick prepares and files non-provisional (regular) patent applications and provisional patent applications. He prepares and files utility patent applications and design patent applications. He prepares and files U.S. patent applications and international patent applications under the Patent Cooperation Treaty (PCT). He prepares and files applications to enter the U.S. National Phase for inventions for which international patent applications (PCT) were already filed. One of the matters he discusses with each client or potential client is which type of application(s) best meets that client's needs. He usually does a patent search (patentability search) as part of the preparation of a patent application. He discusses the value of patent searching with each inventor before agreeing to prepare a patent application for that inventor.