Patents by Inventor Paul R. Szatkowski

Paul R. Szatkowski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Urobilinogen control
    Patent number: 4703013
    Abstract: A stable control solution is provided for the determination of urobilinogen. The control solution comprises an aqueous solution of about 3-12% ethylene glycol, about 0.1% protein and preferably about 40-400 mg/dl urobilinogen, said composition buffered to pH about 8.0-9.0 and retained in a hermetically sealed container under a blanket of inert gas.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: October 27, 1987
    Inventors: Allan L. Louderback, Paul R. Szatkowski
  • Urobilinogen control
    Patent number: 4677075
    Abstract: A stable control solution is provided for the determination of urobilinogen. The control solution comprises an aqueous solution of about 3-12% ethylene glycol, about 0.1% protein and preferably about 40-400 mg/dl urobilinogen, said composition buffered to pH about 8.0-9.0 and retained in a hermetically sealed container under a blanket of inert gas.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: June 30, 1987
    Inventors: Allan L. Louderback, Paul R. Szatkowski
  • Blood biochemistry control standard
    Patent number: 4324687
    Abstract: A blood biochemistry control standard for the quality control of the analytical measurement of blood biochemistry components is disclosed. The control standard comprises an aqueous suspension of red blood cells which have been stabilized by mild treatment with aldehyde and saline and then slowly equilibrated with at least one additionally incorporated non-gaseous biochemical analyte in a concentration of clinical significance.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: April 13, 1982
    Inventors: Allan L. Louderback, Paul R. Szatkowski
  • Blood gas control
    Patent number: 4279775
    Abstract: There is disclosed a synthetic liquid control standard for use in the quality assurance of blood gas instrumentation systems which comprises an aqueous solution of a dye buffered to a pH of from about 7.1 to about 7.7 and containing sufficient bicarbonate ion to provide a pCO.sub.2 of from about 20 to about 80, ethylene glycol to provide a viscosity of from about 3 to about 9 centipoises and gaseous oxygen to provide a pO.sub.2 of from about 50 to about 400 retained in a sealed receptacle.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: July 21, 1981
    Inventors: Allan L. Louderback, Paul R. Szatkowski
  • Freeze-stable liquid blood control standard
    Patent number: 4199471
    Abstract: A freeze-stable liquid blood control standard and method is provided for the quality control of the measurement of blood pH and gases in the clinical laboratory. The blood control standard comprises a sealed receptacle containing specially treated red cells and a gaseous head space at least equal to about the volume of the red cells. The special treatment comprises thorough washing and separating the red cells from the plasma components and mild treatment with aldehyde, slow admixture with lower aliphatic diol or triol, and retention in a buffered solution. The special treatment optionally includes treating at least a portion of the red cells with carbon monoxide. The head space comprises from 0-15% CO.sub.2, 0-25% O.sub.2 and the balance N.sub.2 and/or inert gas.
    Type: Grant
    Filed: November 16, 1978
    Date of Patent: April 22, 1980
    Inventors: Allan L. Louderback, Paul R. Szatkowski