Patents by Inventor Patrick B. Wallace

Patrick B. Wallace 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).

  • Patent number: 4897244
    Abstract: Apparatus and methods for analyzing fluid such as blood serum. A probe used for transferring some of the fluid to a testing station causes a change in circuit capacitance when the probe contacts the fluid. This change in capacitance causes production of a control signal which effects cessation of the descent of the probe into the fluid.
    Type: Grant
    Filed: June 10, 1986
    Date of Patent: January 30, 1990
    Assignee: Abbott Laboratories
    Inventors: Patrick B. Wallace, Larry W. Moore