Professor Demchick's Patent Services

Paul H. Demchick, United States Registered Patent Agent
(United States Patent and Trademark Office Registration 52,808)


PATENTS RELATED TO BLOOD SUBSTITUTES, ARTIFICAL BLOOD COMPONENTS AND BLOOD EXTENDERS

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 blood substitutes, artifical blood components and blood extenders.

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 blood substitutes, artifical blood components and blood extenders 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.

Preserving a hemoglobin blood substitute with a transparent overwrap (United States Patent 7,041,800)

Preserving a hemoglobin blood substitute with a transparent overwrap (United States Patent 7,041,799)

Acellular red blood cell substitute (United States Patent 6,914,127)

Automated system and method for pre-surgical blood donation and fluid replacement (United States Patent 6,808,503)

Automated electrode replacement apparatus for a plasma processing system (United States Patent 6,753,498)

Preserving a hemoglobin blood substitute with a transparent overwrap (United States Patent 6,610,832)

Acellular red blood cell substitute (United States Patent 6,552,173)

Method and apparatus for preparing an acellular red blood cell substitute (United States Patent 6,498,141)

Acellular red blood cell substitute (United States Patent 6,323,320)

Preserving a hemoglobin blood substitute with a transparent overwrap (United States Patent 6,288,027)

Method for preserving a hemoglobin blood substitute (United States Patent 6,271,351)

Method and device for checking proper replacement of a used filter in a device for extracorporeal treatment of blood (United States Patent 6,187,207)

Acellular red blood cell substitute (United States Patent 6,133,425)

Blood substitute suppression by peroxides (United States Patent 6,013,467)

Canine-derived hemoglobin blood substitute, the process for preparing same and uses thereof (United States Patent 6,005,078)

Modified hemoglobin and its use as a component of an artificial blood substitute (United States Patent 5,962,651)

Method for producing a stable polymerized hemoglobin blood-substitute (United States Patent 5,955,581)

Oxygen-transporting albumin-based blood replacement composition and blood volume expander (United States Patent 5,948,609)

Method for producing ultrapure stable polmerized hemoglobin blood-substitute (United States Patent 5,840,852)

Short-coupled-path extender for plasma source (United States Patent 5,814,154)

Method for producing a stable polymerized hemoglobin blood-substitute (United States Patent 5,753,616)

Acellular red blood cell substitute (United States Patent 5,747,649)

Blood substitute comprising 0-5 mM K.sup.+ (United States Patent 5,702,880)

Method for preserving a hemoglobin blood substitute (United States Patent 5,691,452)

Biodegradable polymer membrane containing hemoglobin for blood substitute (United States Patent 5,670,173)

Plasma expander and blood substitute (United States Patent 5,571,801)

Metabolizable plasma substitute (United States Patent 5,470,841)

Acellular red blood cell substitute (United States Patent 5,464,814)

Red blood cell substitute emulsions containing alkyl- or alkylglyucerophosphoryl choline surfactants and methods of use (United States Patent 5,439,944)

Blood substitute (United States Patent 5,439,882)

Chemically modified hemoglobin as an effective, stable, non-immunogenic red blood cell substitute (United States Patent 5,386,014)

Fluorocarbon blood substitute (United States Patent 5,374,624)

Pasteurizable, freeze-driable hemoglobin-based blood substitute (United States Patent 5,364,932)

Chemically modified hemoglobin as an effective, stable non-immunogenic red blood cell substitute (United States Patent 5,234,903)

Air-entraining adjuvant containing blood plasma as a substitute for synthetic colloid, and product obtained (United States Patent 5,196,060)

Acellular red blood cell substitute (United States Patent 5,194,590)

Pasteurizable, freeze-driable hemoglobin-based blood substitute (United States Patent 5,189,146)

Blood substitute (United States Patent 5,130,230)

Extra pure semi-synthetic blood substitute (United States Patent 5,084,558)

Plasma extender (United States Patent 5,039,520)

Blood substitute (United States Patent 4,923,442)

Blood substitute (United States Patent 4,920,194)

Blood substitute comprising liposome-encapsulated hemoglobin (United States Patent 4,911,929)

Replacement of human plasma using sterile solution of human plasma proteins excluding blood coagulation factors (United States Patent 4,900,720)

Pasteurizable, freeze-driable hemoglobin-based blood substitute (United States Patent 4,857,636)

Substitute for human blood and a method of making the same (United States Patent 4,853,370)

Installation with multiple functions for replacement of the natural filtration of the blood (United States Patent 4,844,810)

Replacement of coke in plasma-fired cupola (United States Patent 4,828,607)

Acellular red blood cell substitute (United States Patent 4,826,811)

Artificial replacement kidney implant and method of dialyzing blood (United States Patent 4,769,037)

Substitute for human blood and a method of making the same (United States Patent 4,738,952)

Gas driven system for preparing large volumes of non-oxidized, pyridoxylated, polymerized stroma-free hemoglobin solution for use as a blood substitute (United States Patent 4,730,936)

Replacement fluid control system for a blood fractionation apparatus and the like (United States Patent 4,582,598)

Agent for avoiding occlusion of shunts in substitute blood tubes (United States Patent 4,579,852)

Flow regulator for setting and maintaining a constant flow of blood, blood-substitute, or similar liquid (United States Patent 4,564,171)

Synthetic whole blood substitute and a method of making the same (United States Patent 4,558,032)

Plasma protein concentrates of reduced thrombogenicity and their use in clinical replacement therapy (United States Patent 4,447,416)

Buffered serum substitute for blood oxygen analyzer (United States Patent 4,403,038)

Oxygen carrier for blood substitute (United States Patent 4,377,512)

Immunoassay with solid phase having coating containing blood platelet substitute (United States Patent 4,360,358)

Blood substitute containing modified hemoglobin (United States Patent 4,301,144)

Substitute blood vessel and a process for preparing the same (United States Patent 4,098,571)

Blood substitute based on hemoglobin (United States Patent 4,064,118)

Blood substitute and blood plasma expander comprising polyhemoglobin (United States Patent 4,001,401)

Plasma substitute including artificial starch and method for the preparation thereof (United States Patent 3,937,821)

Preserving a hemoglobin blood substitute with a transparent overwrap (United States Patent 7,041,800)

Preserving a hemoglobin blood substitute with a transparent overwrap (United States Patent 7,041,799)

Acellular red blood cell substitute (United States Patent 6,914,127)

Automated system and method for pre-surgical blood donation and fluid replacement (United States Patent 6,808,503)

Automated electrode replacement apparatus for a plasma processing system (United States Patent 6,753,498)

Preserving a hemoglobin blood substitute with a transparent overwrap (United States Patent 6,610,832)

Acellular red blood cell substitute (United States Patent 6,552,173)

Method and apparatus for preparing an acellular red blood cell substitute (United States Patent 6,498,141)

Acellular red blood cell substitute (United States Patent 6,323,320)

Preserving a hemoglobin blood substitute with a transparent overwrap (United States Patent 6,288,027)

Method for preserving a hemoglobin blood substitute (United States Patent 6,271,351)

Method and device for checking proper replacement of a used filter in a device for extracorporeal treatment of blood (United States Patent 6,187,207)

Acellular red blood cell substitute (United States Patent 6,133,425)

Blood substitute suppression by peroxides (United States Patent 6,013,467)

Canine-derived hemoglobin blood substitute, the process for preparing same and uses thereof (United States Patent 6,005,078)

Modified hemoglobin and its use as a component of an artificial blood substitute (United States Patent 5,962,651)

Method for producing a stable polymerized hemoglobin blood-substitute (United States Patent 5,955,581)

Oxygen-transporting albumin-based blood replacement composition and blood volume expander (United States Patent 5,948,609)

Method for producing ultrapure stable polmerized hemoglobin blood-substitute (United States Patent 5,840,852)

Short-coupled-path extender for plasma source (United States Patent 5,814,154)

Method for producing a stable polymerized hemoglobin blood-substitute (United States Patent 5,753,616)

Acellular red blood cell substitute (United States Patent 5,747,649)

Blood substitute comprising 0-5 mM K.sup.+ (United States Patent 5,702,880)

Method for preserving a hemoglobin blood substitute (United States Patent 5,691,452)

Biodegradable polymer membrane containing hemoglobin for blood substitute (United States Patent 5,670,173)

Plasma expander and blood substitute (United States Patent 5,571,801)

Metabolizable plasma substitute (United States Patent 5,470,841)

Acellular red blood cell substitute (United States Patent 5,464,814)

Red blood cell substitute emulsions containing alkyl- or alkylglyucerophosphoryl choline surfactants and methods of use (United States Patent 5,439,944)

Blood substitute (United States Patent 5,439,882)

Chemically modified hemoglobin as an effective, stable, non-immunogenic red blood cell substitute (United States Patent 5,386,014)

Fluorocarbon blood substitute (United States Patent 5,374,624)

Pasteurizable, freeze-driable hemoglobin-based blood substitute (United States Patent 5,364,932)

Chemically modified hemoglobin as an effective, stable non-immunogenic red blood cell substitute (United States Patent 5,234,903)

Air-entraining adjuvant containing blood plasma as a substitute for synthetic colloid, and product obtained (United States Patent 5,196,060)

Acellular red blood cell substitute (United States Patent 5,194,590)

Pasteurizable, freeze-driable hemoglobin-based blood substitute (United States Patent 5,189,146)

Blood substitute (United States Patent 5,130,230)

Extra pure semi-synthetic blood substitute (United States Patent 5,084,558)

Plasma extender (United States Patent 5,039,520)

Blood substitute (United States Patent 4,923,442)

Blood substitute (United States Patent 4,920,194)

Blood substitute comprising liposome-encapsulated hemoglobin (United States Patent 4,911,929)

Replacement of human plasma using sterile solution of human plasma proteins excluding blood coagulation factors (United States Patent 4,900,720)

Pasteurizable, freeze-driable hemoglobin-based blood substitute (United States Patent 4,857,636)

Substitute for human blood and a method of making the same (United States Patent 4,853,370)

Installation with multiple functions for replacement of the natural filtration of the blood (United States Patent 4,844,810)

Replacement of coke in plasma-fired cupola (United States Patent 4,828,607)

Acellular red blood cell substitute (United States Patent 4,826,811)

Artificial replacement kidney implant and method of dialyzing blood (United States Patent 4,769,037)

Substitute for human blood and a method of making the same (United States Patent 4,738,952)

Gas driven system for preparing large volumes of non-oxidized, pyridoxylated, polymerized stroma-free hemoglobin solution for use as a blood substitute (United States Patent 4,730,936)

Replacement fluid control system for a blood fractionation apparatus and the like (United States Patent 4,582,598)

Agent for avoiding occlusion of shunts in substitute blood tubes (United States Patent 4,579,852)

Flow regulator for setting and maintaining a constant flow of blood, blood-substitute, or similar liquid (United States Patent 4,564,171)

Synthetic whole blood substitute and a method of making the same (United States Patent 4,558,032)

Plasma protein concentrates of reduced thrombogenicity and their use in clinical replacement therapy (United States Patent 4,447,416)

Buffered serum substitute for blood oxygen analyzer (United States Patent 4,403,038)

Oxygen carrier for blood substitute (United States Patent 4,377,512)

Immunoassay with solid phase having coating containing blood platelet substitute (United States Patent 4,360,358)

Blood substitute containing modified hemoglobin (United States Patent 4,301,144)

Substitute blood vessel and a process for preparing the same (United States Patent 4,098,571)

Blood substitute based on hemoglobin (United States Patent 4,064,118)

Blood substitute and blood plasma expander comprising polyhemoglobin (United States Patent 4,001,401)

Plasma substitute including artificial starch and method for the preparation thereof (United States Patent 3,937,821)

Preserving a hemoglobin blood substitute with a transparent overwrap (United States Patent 7,041,800)

Preserving a hemoglobin blood substitute with a transparent overwrap (United States Patent 7,041,799)

Acellular red blood cell substitute (United States Patent 6,914,127)

Automated system and method for pre-surgical blood donation and fluid replacement (United States Patent 6,808,503)

Automated electrode replacement apparatus for a plasma processing system (United States Patent 6,753,498)

Preserving a hemoglobin blood substitute with a transparent overwrap (United States Patent 6,610,832)

Acellular red blood cell substitute (United States Patent 6,552,173)

Method and apparatus for preparing an acellular red blood cell substitute (United States Patent 6,498,141)

Acellular red blood cell substitute (United States Patent 6,323,320)

Preserving a hemoglobin blood substitute with a transparent overwrap (United States Patent 6,288,027)

Method for preserving a hemoglobin blood substitute (United States Patent 6,271,351)

Method and device for checking proper replacement of a used filter in a device for extracorporeal treatment of blood (United States Patent 6,187,207)

Acellular red blood cell substitute (United States Patent 6,133,425)

Blood substitute suppression by peroxides (United States Patent 6,013,467)

Canine-derived hemoglobin blood substitute, the process for preparing same and uses thereof (United States Patent 6,005,078)

Modified hemoglobin and its use as a component of an artificial blood substitute (United States Patent 5,962,651)

Method for producing a stable polymerized hemoglobin blood-substitute (United States Patent 5,955,581)

Oxygen-transporting albumin-based blood replacement composition and blood volume expander (United States Patent 5,948,609)

Method for producing ultrapure stable polmerized hemoglobin blood-substitute (United States Patent 5,840,852)

Short-coupled-path extender for plasma source (United States Patent 5,814,154)

Method for producing a stable polymerized hemoglobin blood-substitute (United States Patent 5,753,616)

Acellular red blood cell substitute (United States Patent 5,747,649)

Blood substitute comprising 0-5 mM K.sup.+ (United States Patent 5,702,880)

Method for preserving a hemoglobin blood substitute (United States Patent 5,691,452)

Biodegradable polymer membrane containing hemoglobin for blood substitute (United States Patent 5,670,173)

Plasma expander and blood substitute (United States Patent 5,571,801)

Metabolizable plasma substitute (United States Patent 5,470,841)

Acellular red blood cell substitute (United States Patent 5,464,814)

Red blood cell substitute emulsions containing alkyl- or alkylglyucerophosphoryl choline surfactants and methods of use (United States Patent 5,439,944)

Blood substitute (United States Patent 5,439,882)

Chemically modified hemoglobin as an effective, stable, non-immunogenic red blood cell substitute (United States Patent 5,386,014)

Fluorocarbon blood substitute (United States Patent 5,374,624)

Pasteurizable, freeze-driable hemoglobin-based blood substitute (United States Patent 5,364,932)

Chemically modified hemoglobin as an effective, stable non-immunogenic red blood cell substitute (United States Patent 5,234,903)

Air-entraining adjuvant containing blood plasma as a substitute for synthetic colloid, and product obtained (United States Patent 5,196,060)

Acellular red blood cell substitute (United States Patent 5,194,590)

Pasteurizable, freeze-driable hemoglobin-based blood substitute (United States Patent 5,189,146)

Blood substitute (United States Patent 5,130,230)

Extra pure semi-synthetic blood substitute (United States Patent 5,084,558)

Plasma extender (United States Patent 5,039,520)

Blood substitute (United States Patent 4,923,442)

Blood substitute (United States Patent 4,920,194)

Blood substitute comprising liposome-encapsulated hemoglobin (United States Patent 4,911,929)

Replacement of human plasma using sterile solution of human plasma proteins excluding blood coagulation factors (United States Patent 4,900,720)

Pasteurizable, freeze-driable hemoglobin-based blood substitute (United States Patent 4,857,636)

Substitute for human blood and a method of making the same (United States Patent 4,853,370)

Installation with multiple functions for replacement of the natural filtration of the blood (United States Patent 4,844,810)

Replacement of coke in plasma-fired cupola (United States Patent 4,828,607)

Acellular red blood cell substitute (United States Patent 4,826,811)

Artificial replacement kidney implant and method of dialyzing blood (United States Patent 4,769,037)

Substitute for human blood and a method of making the same (United States Patent 4,738,952)

Gas driven system for preparing large volumes of non-oxidized, pyridoxylated, polymerized stroma-free hemoglobin solution for use as a blood substitute (United States Patent 4,730,936)

Replacement fluid control system for a blood fractionation apparatus and the like (United States Patent 4,582,598)

Agent for avoiding occlusion of shunts in substitute blood tubes (United States Patent 4,579,852)

Flow regulator for setting and maintaining a constant flow of blood, blood-substitute, or similar liquid (United States Patent 4,564,171)

Synthetic whole blood substitute and a method of making the same (United States Patent 4,558,032)

Plasma protein concentrates of reduced thrombogenicity and their use in clinical replacement therapy (United States Patent 4,447,416)

Buffered serum substitute for blood oxygen analyzer (United States Patent 4,403,038)

Oxygen carrier for blood substitute (United States Patent 4,377,512)

Immunoassay with solid phase having coating containing blood platelet substitute (United States Patent 4,360,358)

Blood substitute containing modified hemoglobin (United States Patent 4,301,144)

Substitute blood vessel and a process for preparing the same (United States Patent 4,098,571)

Blood substitute based on hemoglobin (United States Patent 4,064,118)

Blood substitute and blood plasma expander comprising polyhemoglobin (United States Patent 4,001,401)

Plasma substitute including artificial starch and method for the preparation thereof (United States Patent 3,937,821)

Preserving a hemoglobin blood substitute with a transparent overwrap (United States Patent 7,041,800)

Preserving a hemoglobin blood substitute with a transparent overwrap (United States Patent 7,041,799)

Acellular red blood cell substitute (United States Patent 6,914,127)

Automated system and method for pre-surgical blood donation and fluid replacement (United States Patent 6,808,503)

Automated electrode replacement apparatus for a plasma processing system (United States Patent 6,753,498)

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.