Patents by Inventor Gerhard Ertinghausen

Gerhard Ertinghausen 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 for quantitative analysis of body fluid constituents
    Patent number: 5087556
    Abstract: The invention is a self-contained, chromatic quantitative analyzer that quantitatively detects an analyte in a biological fluid. The invention includes a base having a first open reservoir for receiving the biological fluid. A means for separating solids from the biological fluid is provided in the first open reservoir. A channel is provided which draws, by capillary and/or wicking action, the biological fluid from the first open reservoir to a second open reservoir. The second open reservoir draws the biological fluid from the channel and, when the second open reservoir is full with the biological fluid, the capillary and/or wicking action terminates. A membrane is provided in the channel which is permeable to the biological fluid. There is at least one chromatic chemical indicator immobilized in the membrane in a predetermined concentration. The membrane enables the biological fluid to interact with the chromatic chemical indicator.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: February 11, 1992
    Assignee: Actimed Laboratories, Inc.
    Inventor: Gerhard Ertinghausen