Patents by Inventor Frank Leland

Frank Leland 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 removing low-frequency noise from records with data impulse
    Patent number: 4885722
    Abstract: A method for separating high frequency impulse data from received signal in which it is superimposed on low frequency noise is disclosed. Median filtering is applied to the received signal to remove the impulse data therefrom. The resultant filtered signal is subtracted from the original signal; the remainder includes only the impulses from the original signal. The invention is described in connection with borehole imaging and casing collar locating logging operations, both useful geophysical tools.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: December 5, 1989
    Assignee: Mobil Oil Corporation
    Inventor: Frank Leland