Patents by Inventor G. Jay Janzen

G. Jay Janzen 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).

  • Automatic turbidimetric titration
    Patent number: 4095272
    Abstract: The turbidity of the medium being titrated is continuously measured and an analog signal representative thereof is differentiated. The resulting first derivative signal is compared with a reference signal to produce a control signal when the derivative signal has a predetermined relationship to the reference signal. A titration end point signal, representative of the amount of titrant added to the medium being titrated in order to achieve said predetermined relationship, is produced responsive to said control signal.
    Type: Grant
    Filed: January 11, 1977
    Date of Patent: June 13, 1978
    Assignee: Phillips Petroleum Company
    Inventor: G. Jay Janzen