Patents by Inventor Gregory D. Lazear

Gregory D. Lazear 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).

  • Minimum phase bandpass filtering of seismic signals
    Patent number: 4608673
    Abstract: A process for better defining first break seismic energy travel times for correlated seismic return signals that consists of constructing a minimum phase bandpass filter having bandwidth narrower than the vibrational seismic return signals and convolving the filter with the return signals to convert the seismic return signals to a causal wave form.
    Type: Grant
    Filed: May 11, 1983
    Date of Patent: August 26, 1986
    Assignee: Conoco Inc.
    Inventor: Gregory D. Lazear