Patents by Inventor Wells P. Owen

Wells P. Owen 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).

  • Blood gas calibration and control fluid utilizing stroma-free hemoglobin
    Patent number: 4469792
    Abstract: A reference fluid for the calibration and control of blood gas instruments is comprised of substantially pure stroma-free hemoglobin solution, a buffering agent, a source of bicarbonate ion and predetermined amounts of gases found in in vivo blood.
    Type: Grant
    Filed: August 5, 1981
    Date of Patent: September 4, 1984
    Assignee: Allied Corporation
    Inventors: Richard S. Simmonds, Wells P. Owen
  • Process for the preparation of stroma-free hemoglobin solutions
    Patent number: 4401652
    Abstract: A process for preparing a stroma-free hemoglobin solution is provided. The process includes washing blood cells to remove noncellular components to obtain a mixture of erythrocytes and leukocytes. The leukocytes are removed from the mixture and the erythrocytes are lysed to form a mixture of stroma and hemoglobin. The stroma is precipitated from the hemoglobin by treating the stroma-hemoglobin mixture with a polyvalent cation; a polysulfate, and a polyvalent anion. The supernatant hemoglobin solution is separated and dialyzed to obtain a substantially pure hemoglobin solution.
    Type: Grant
    Filed: August 5, 1981
    Date of Patent: August 30, 1983
    Assignee: Allied Corporation
    Inventors: Richard S. Simmonds, Wells P. Owen