PATENTS RELATED TO HEMATOCRIT

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 HEMATOCRIT

Although Dr. Demchick also represents patent seekers with non-biological inventions, his doctorate is in biology. Biology has been the primary focus of his research and teaching. He especially loves dealing with patent searches and applications for involving biology.

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 hematocrit 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.

Method and device for measurement of hematocrit (United States Patent 7,115,421)
Hematocrit sampling system (United States Patent 7,018,353)
Red blood cell processing systems and methods which control red blood cell hematocrit (United States Patent 7,011,761)
Noninvasive method of measuring blood density and hematocrit (United States Patent 7,011,631)
Electrochemical methods and devices for use in the determination of hematocrit corrected analyte concentrations (United States Patent 6,890,421)
Blood processing systems and methods using red blood cell hematocrit as a process control parameter (United States Patent 6,802,982)
System and method for in-vivo hematocrit measurement using impedance and pressure plethysmography (United States Patent 6,766,191)
Continuous optoacoustic monitoring of hemoglobin concentration and hematocrit (United States Patent 6,751,490)
Blood collection systems and methods that derive estimated effects upon the donor's blood volume and hematocrit (United States Patent 6,730,054)
System for noninvasive hematocrit monitoring (United States Patent 6,681,128)
Method and device for the noninvasive determination of hemoglobin and hematocrit (United States Patent 6,662,031)
Air gap for controlling sample absorption and hematocrit dependence (United States Patent 6,656,741)
Method and apparatus for improving the accuracy of noninvasive hematocrit measurements (United States Patent 6,606,509)
Hematocrit sampling system (United States Patent 6,554,788)
Apparatus for measuring hematocrit (United States Patent 6,522,398)
Method and apparatus for determining erythrocyte sedimentation rate and hematocrit (United States Patent 6,506,606)
Electrochemical methods and devices for use in the determination of hematocrit corrected analyte concentrations (United States Patent 6,475,372)
Blood processing systems and methods using apparent hematocrit as a process of control parameter (United States Patent 6,451,203)
Systems and methods for sensing red blood cell hematocrit (United States Patent 6,419,822)
Capillary hematocrit separation structure and method (United States Patent 6,319,719)
Non-invasive optical measurement of blood hematocrit (United States Patent 6,304,767)
Systems and methods for sensing red blood cell hematocrit (United States Patent 6,294,094)
System for noninvasive hematocrit monitoring (United States Patent 6,266,546)
Blood processing systems and methods using apparent hematocrit as a process control parameter (United States Patent 6,207,063)
System and method for in-vivo hematocrit measurement using impedance and pressure plethysmography (United States Patent 6,128,518)
Systems and methods for separating high hematocrit red blood cell concentrations (United States Patent 6,080,322)
Optical measurement of blood hematocrit incorporating a self-calibration algorithm (United States Patent 6,064,474)
Blood processing systems and methods using apparent hematocrit as a process control parameter (United States Patent 6,059,979)
Planar hematocrit sensor incorporating a seven-electrode conductivity measurement cell (United States Patent 6,058,934)
Non-invasive optical measurement of blood hematocrit (United States Patent 6,006,119)
Systems and methods for collecting mononuclear cells employing control of packed red blood cell hematocrit (United States Patent 5,961,842)
Presealed integral hematocrit test assembly and method (United States Patent 5,916,814)
Method and apparatus for ratiometric measurement of hematocrit (United States Patent 5,869,971)
System for noninvasive hematocrit monitoring (United States Patent 5,803,908)
Blood glucose strip having reduced sensitivity to hematocrit (United States Patent 5,789,255)
Systems for separating high hematocrit red blood cell concentrations (United States Patent 5,762,791)
Method and apparatus for noninvasive prediction of hematocrit (United States Patent 5,755,226)
Blood processing systems and methods using apparent hematocrit as a process control parameter (United States Patent 5,730,883)
Method and apparatus for noninvasively determining hematocrit (United States Patent 5,642,734)
Method and apparatus for noninvasive prediction of hematocrit (United States Patent 5,553,615)
Method for increasing the hematocrit of a normal mammal (United States Patent 5,541,158)
Method and apparatus for noninvasively determining hematocrit (United States Patent 5,526,808)
Determination of an individual's inflammation index from whole blood fibrinogen and hematocrit or hemoglobin measurements (United States Patent 5,506,145)
System for noninvasive hematocrit monitoring (United States Patent 5,499,627)
Biosensor and method for hematocrit determination (United States Patent 5,385,846)
Apparatus for monitoring hematocrit levels of blood (United States Patent 5,385,539)
System and method for noninvasive hematocrit monitoring (United States Patent 5,372,136)
Apparatus for measurement of blood saturation and hematocrit (United States Patent 5,356,593)
Noninvasive measurement of hematocrit and hemoglobin content by differential optical analysis (United States Patent 5,277,181)
Syringe for hematocrit and oxygen saturation blood analyzer (United States Patent 5,249,584)
Methods and apparatus for quantifying tissue damage, determining tissue type, monitoring neural activity, and determining hematocrit (United States Patent 5,200,345)
Noncontact hematocrit reader apparatus and method (United States Patent 5,139,328)
Method for noninvasive intermittent and/or continuous hemoglobin, arterial oxygen content, and hematocrit determination (United States Patent 5,101,825)
Hematocrit and oxygen saturation blood analyzer (United States Patent 5,066,859)
Method and apparatus for estimating hematocrit in a blood constituent processing system (United States Patent 4,964,847)
Method of performing measurement of hematocrit value and separate sampling of blood component (United States Patent 4,939,925)
Hematocrit reader apparatus and method (United States Patent 4,887,458)
Apparatus and method for using ultrasound to determine hematocrit (United States Patent 4,854,170)
Process for the determination of the hematocrit level of whole blood and apparatus for carrying out the process (United States Patent 4,835,477)
Hematocrit measurement by differential optical geometry in a short-term diagnostic cardiovascular catheter, and application to correction of blood-oxygen measurement (United States Patent 4,776,340)
Hematocrit measuring apparatus (United States Patent 4,745,279)
Apparatus and method for obtaining a rapid hematocrit (United States Patent 4,738,655)
Electrochemical determination of hematocrit (United States Patent 4,699,887)
Apparatus and control kit for analyzing blood sample values including hematocrit (United States Patent 4,686,479)
Electrochemical determination of hematocrit (United States Patent 4,605,628)
Instrument for measuring the hematocrit value of blood (United States Patent 4,547,735)
Hematocrit measuring instrument (United States Patent 4,484,135)
Hematocrit value determining element (United States Patent 4,340,565)
Method and apparatus for making a rapid measurement of the hematocrit of blood (United States Patent 4,303,336)
Coincidence correction of hematocrit in a hematology measurement apparatus (United States Patent 4,251,768)
Blood hematocrit monitoring system (United States Patent 4,243,883)
Reader for hematocrit value (United States Patent 4,163,615)
Hematocrit measurement in an automatic hematology analyzer (United States Patent 4,086,631)
Method and apparatus for determining hematocrit (United States Patent 4,068,169)
Multiple holder for determining hematocrit (United States Patent 4,028,930)
Method and device for measurement of hematocrit (United States Patent 7,115,421)
Hematocrit sampling system (United States Patent 7,018,353)
Red blood cell processing systems and methods which control red blood cell hematocrit (United States Patent 7,011,761)
Noninvasive method of measuring blood density and hematocrit (United States Patent 7,011,631)
Electrochemical methods and devices for use in the determination of hematocrit corrected analyte concentrations (United States Patent 6,890,421)
Blood processing systems and methods using red blood cell hematocrit as a process control parameter (United States Patent 6,802,982)
System and method for in-vivo hematocrit measurement using impedance and pressure plethysmography (United States Patent 6,766,191)
Continuous optoacoustic monitoring of hemoglobin concentration and hematocrit (United States Patent 6,751,490)
Blood collection systems and methods that derive estimated effects upon the donor's blood volume and hematocrit (United States Patent 6,730,054)
System for noninvasive hematocrit monitoring (United States Patent 6,681,128)
Method and device for the noninvasive determination of hemoglobin and hematocrit (United States Patent 6,662,031)
Air gap for controlling sample absorption and hematocrit dependence (United States Patent 6,656,741)
Method and apparatus for improving the accuracy of noninvasive hematocrit measurements (United States Patent 6,606,509)
Hematocrit sampling system (United States Patent 6,554,788)
Apparatus for measuring hematocrit (United States Patent 6,522,398)
Method and apparatus for determining erythrocyte sedimentation rate and hematocrit (United States Patent 6,506,606)
Electrochemical methods and devices for use in the determination of hematocrit corrected analyte concentrations (United States Patent 6,475,372)
Blood processing systems and methods using apparent hematocrit as a process of control parameter (United States Patent 6,451,203)
Systems and methods for sensing red blood cell hematocrit (United States Patent 6,419,822)
Capillary hematocrit separation structure and method (United States Patent 6,319,719)
Non-invasive optical measurement of blood hematocrit (United States Patent 6,304,767)
Systems and methods for sensing red blood cell hematocrit (United States Patent 6,294,094)
System for noninvasive hematocrit monitoring (United States Patent 6,266,546)
Blood processing systems and methods using apparent hematocrit as a process control parameter (United States Patent 6,207,063)
System and method for in-vivo hematocrit measurement using impedance and pressure plethysmography (United States Patent 6,128,518)
Systems and methods for separating high hematocrit red blood cell concentrations (United States Patent 6,080,322)
Optical measurement of blood hematocrit incorporating a self-calibration algorithm (United States Patent 6,064,474)
Blood processing systems and methods using apparent hematocrit as a process control parameter (United States Patent 6,059,979)
Planar hematocrit sensor incorporating a seven-electrode conductivity measurement cell (United States Patent 6,058,934)
Non-invasive optical measurement of blood hematocrit (United States Patent 6,006,119)
Systems and methods for collecting mononuclear cells employing control of packed red blood cell hematocrit (United States Patent 5,961,842)
Presealed integral hematocrit test assembly and method (United States Patent 5,916,814)
Method and apparatus for ratiometric measurement of hematocrit (United States Patent 5,869,971)
System for noninvasive hematocrit monitoring (United States Patent 5,803,908)
Blood glucose strip having reduced sensitivity to hematocrit (United States Patent 5,789,255)
Systems for separating high hematocrit red blood cell concentrations (United States Patent 5,762,791)
Method and apparatus for noninvasive prediction of hematocrit (United States Patent 5,755,226)
Blood processing systems and methods using apparent hematocrit as a process control parameter (United States Patent 5,730,883)
Method and apparatus for noninvasively determining hematocrit (United States Patent 5,642,734)
Method and apparatus for noninvasive prediction of hematocrit (United States Patent 5,553,615)
Method for increasing the hematocrit of a normal mammal (United States Patent 5,541,158)
Method and apparatus for noninvasively determining hematocrit (United States Patent 5,526,808)
Determination of an individual's inflammation index from whole blood fibrinogen and hematocrit or hemoglobin measurements (United States Patent 5,506,145)
System for noninvasive hematocrit monitoring (United States Patent 5,499,627)
Biosensor and method for hematocrit determination (United States Patent 5,385,846)
Apparatus for monitoring hematocrit levels of blood (United States Patent 5,385,539)
System and method for noninvasive hematocrit monitoring (United States Patent 5,372,136)
Apparatus for measurement of blood saturation and hematocrit (United States Patent 5,356,593)
Noninvasive measurement of hematocrit and hemoglobin content by differential optical analysis (United States Patent 5,277,181)
Syringe for hematocrit and oxygen saturation blood analyzer (United States Patent 5,249,584)
Methods and apparatus for quantifying tissue damage, determining tissue type, monitoring neural activity, and determining hematocrit (United States Patent 5,200,345)
Noncontact hematocrit reader apparatus and method (United States Patent 5,139,328)
Method for noninvasive intermittent and/or continuous hemoglobin, arterial oxygen content, and hematocrit determination (United States Patent 5,101,825)
Hematocrit and oxygen saturation blood analyzer (United States Patent 5,066,859)
Method and apparatus for estimating hematocrit in a blood constituent processing system (United States Patent 4,964,847)
Method of performing measurement of hematocrit value and separate sampling of blood component (United States Patent 4,939,925)
Hematocrit reader apparatus and method (United States Patent 4,887,458)
Apparatus and method for using ultrasound to determine hematocrit (United States Patent 4,854,170)
Process for the determination of the hematocrit level of whole blood and apparatus for carrying out the process (United States Patent 4,835,477)
Hematocrit measurement by differential optical geometry in a short-term diagnostic cardiovascular catheter, and application to correction of blood-oxygen measurement (United States Patent 4,776,340)
Hematocrit measuring apparatus (United States Patent 4,745,279)
Apparatus and method for obtaining a rapid hematocrit (United States Patent 4,738,655)
Electrochemical determination of hematocrit (United States Patent 4,699,887)
Apparatus and control kit for analyzing blood sample values including hematocrit (United States Patent 4,686,479)
Electrochemical determination of hematocrit (United States Patent 4,605,628)
Instrument for measuring the hematocrit value of blood (United States Patent 4,547,735)
Hematocrit measuring instrument (United States Patent 4,484,135)
Hematocrit value determining element (United States Patent 4,340,565)
Method and apparatus for making a rapid measurement of the hematocrit of blood (United States Patent 4,303,336)
Coincidence correction of hematocrit in a hematology measurement apparatus (United States Patent 4,251,768)
Blood hematocrit monitoring system (United States Patent 4,243,883)
Reader for hematocrit value (United States Patent 4,163,615)
Hematocrit measurement in an automatic hematology analyzer (United States Patent 4,086,631)
Method and apparatus for determining hematocrit (United States Patent 4,068,169)
Multiple holder for determining hematocrit (United States Patent 4,028,930)
Method and device for measurement of hematocrit (United States Patent 7,115,421)
Hematocrit sampling system (United States Patent 7,018,353)
Red blood cell processing systems and methods which control red blood cell hematocrit (United States Patent 7,011,761)
Noninvasive method of measuring blood density and hematocrit (United States Patent 7,011,631)
Electrochemical methods and devices for use in the determination of hematocrit corrected analyte concentrations (United States Patent 6,890,421)
Blood processing systems and methods using red blood cell hematocrit as a process control parameter (United States Patent 6,802,982)
System and method for in-vivo hematocrit measurement using impedance and pressure plethysmography (United States Patent 6,766,191)
Continuous optoacoustic monitoring of hemoglobin concentration and hematocrit (United States Patent 6,751,490)
Blood collection systems and methods that derive estimated effects upon the donor's blood volume and hematocrit (United States Patent 6,730,054)
System for noninvasive hematocrit monitoring (United States Patent 6,681,128)
Method and device for the noninvasive determination of hemoglobin and hematocrit (United States Patent 6,662,031)
Air gap for controlling sample absorption and hematocrit dependence (United States Patent 6,656,741)
Method and apparatus for improving the accuracy of noninvasive hematocrit measurements (United States Patent 6,606,509)
Hematocrit sampling system (United States Patent 6,554,788)
Apparatus for measuring hematocrit (United States Patent 6,522,398)
Method and apparatus for determining erythrocyte sedimentation rate and hematocrit (United States Patent 6,506,606)
Electrochemical methods and devices for use in the determination of hematocrit corrected analyte concentrations (United States Patent 6,475,372)
Blood processing systems and methods using apparent hematocrit as a process of control parameter (United States Patent 6,451,203)
Systems and methods for sensing red blood cell hematocrit (United States Patent 6,419,822)
Capillary hematocrit separation structure and method (United States Patent 6,319,719)
Non-invasive optical measurement of blood hematocrit (United States Patent 6,304,767)
Systems and methods for sensing red blood cell hematocrit (United States Patent 6,294,094)
System for noninvasive hematocrit monitoring (United States Patent 6,266,546)
Blood processing systems and methods using apparent hematocrit as a process control parameter (United States Patent 6,207,063)
System and method for in-vivo hematocrit measurement using impedance and pressure plethysmography (United States Patent 6,128,518)
Systems and methods for separating high hematocrit red blood cell concentrations (United States Patent 6,080,322)
Optical measurement of blood hematocrit incorporating a self-calibration algorithm (United States Patent 6,064,474)
Blood processing systems and methods using apparent hematocrit as a process control parameter (United States Patent 6,059,979)
Planar hematocrit sensor incorporating a seven-electrode conductivity measurement cell (United States Patent 6,058,934)
Non-invasive optical measurement of blood hematocrit (United States Patent 6,006,119)
Systems and methods for collecting mononuclear cells employing control of packed red blood cell hematocrit (United States Patent 5,961,842)
Presealed integral hematocrit test assembly and method (United States Patent 5,916,814)
Method and apparatus for ratiometric measurement of hematocrit (United States Patent 5,869,971)
System for noninvasive hematocrit monitoring (United States Patent 5,803,908)
Blood glucose strip having reduced sensitivity to hematocrit (United States Patent 5,789,255)
Systems for separating high hematocrit red blood cell concentrations (United States Patent 5,762,791)
Method and apparatus for noninvasive prediction of hematocrit (United States Patent 5,755,226)
Blood processing systems and methods using apparent hematocrit as a process control parameter (United States Patent 5,730,883)
Method and apparatus for noninvasively determining hematocrit (United States Patent 5,642,734)
Method and apparatus for noninvasive prediction of hematocrit (United States Patent 5,553,615)
Method for increasing the hematocrit of a normal mammal (United States Patent 5,541,158)
Method and apparatus for noninvasively determining hematocrit (United States Patent 5,526,808)
Determination of an individual's inflammation index from whole blood fibrinogen and hematocrit or hemoglobin measurements (United States Patent 5,506,145)
System for noninvasive hematocrit monitoring (United States Patent 5,499,627)
Biosensor and method for hematocrit determination (United States Patent 5,385,846)
Apparatus for monitoring hematocrit levels of blood (United States Patent 5,385,539)
System and method for noninvasive hematocrit monitoring (United States Patent 5,372,136)
Apparatus for measurement of blood saturation and hematocrit (United States Patent 5,356,593)
Noninvasive measurement of hematocrit and hemoglobin content by differential optical analysis (United States Patent 5,277,181)
Syringe for hematocrit and oxygen saturation blood analyzer (United States Patent 5,249,584)

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.