Patents by Inventor Larry J. Schoennauer

Larry J. Schoennauer 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).

  • Sub-surface electromagnetic telemetry systems and methods
    Patent number: 10494916
    Abstract: A method may include drilling a section of a first wellbore and casing a section of a first wellbore. The method may include lowering a downhole receiving system into the first wellbore to a first wellbore depth and drilling at least one section of a second wellbore. In addition, the method may include positioning an EM telemetry system in the at least one section of the second wellbore and transmitting an EM telemetry signal from the EM telemetry system. The method may include receiving the EM telemetry signal with the downhole receiving system.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: December 3, 2019
    Assignee: SCIENTIFIC DRILLING INTERNATIONAL, INC.
    Inventors: Matthew A. White, Brian Gleason, Stephen D. Morrow, Peter Smidth, Larry J. Schoennauer, Douglas Ridgway
  • SUB-SURFACE ELECTROMAGNETIC TELEMETRY SYSTEMS AND METHODS
    Publication number: 20170241259
    Abstract: A method may include drilling a section of a first wellbore and casing a section of a first wellbore. The method may include lowering a downhole receiving system into the first wellbore to a first wellbore depth and drilling at least one section of a second wellbore. In addition, the method may include positioning an EM telemetry system in the at least one section of the second wellbore and transmitting an EM telemetry signal from the EM telemetry system. The method may include receiving the EM telemetry signal with the downhole receiving system.
    Type: Application
    Filed: February 15, 2017
    Publication date: August 24, 2017
    Inventors: Matthew A. WHITE, Brian GLEASON, Stephen D. MORROW, Peter SMIDTH, Larry J. SCHOENNAUER, Douglas RIDGWAY
  • Resonant piezoelectric chopper for infrared radiation
    Patent number: 4850697
    Abstract: Apparatus for inserting and removing several filters from an optical path and for determining at all times the instantaneous positional relationship of each filter with respect to the optical path includes a set of filters mounted on a carrier which is attached to a resonant piezoelectric system, and further includes reference tracks also located on the carrier and extending in the direction of the oscillatory motion and including a sequence of binary indicia progressing in the direction of the oscillatory motion. The reference tracks are read optically to produce a series of binary electrical signals which are processed to yield the instantaneous position of the carrier and filters with respect to a fixed optical path.
    Type: Grant
    Filed: March 16, 1988
    Date of Patent: July 25, 1989
    Assignee: Dynatech Electro-Optics Corporation
    Inventors: Larry J. Schoennauer, Ronald B. Alers, Keith Kaste, Ross E. Johnson, Jacob Y. Wong