Patents by Inventor James W. Eichelberger

James W. Eichelberger 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).

  • Method and apparatus for determining deficiencies in enzymatic reactors particularly clotting factor levels in blood plasmas
    Patent number: 4047890
    Abstract: The peak value of the first derivative of the optical density time curve is related to individual clotting factor levels, deficient or elevated. The relationship is logarithmic for all factors except fibrinogen and it is linear for fibrinogen. The apparatus and process disclosed herein apply the relationship to determine blood clotting factor levels.
    Type: Grant
    Filed: March 21, 1975
    Date of Patent: September 13, 1977
    Assignee: Bio/Data Corporation
    Inventors: James W. Eichelberger, Frederick M. Kent, Michael Sokol