Patents by Inventor Burkhard ZIPPEL

Burkhard ZIPPEL 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).

  • Dart detector for wellbore tubular cementation
    Patent number: 9957794
    Abstract: A detector for use in cementing a tubular string in a wellbore includes: a tubular mandrel; an electronics package fastened to an outer surface of the mandrel; a first transducer: fastened to the mandrel outer surface, in communication with the electronics package, and operable to generate ultrasonic pulses; a second transducer: fastened to the mandrel outer surface, in communication with the electronics package, and operable to receive the ultrasonic pulses; and an antenna fastened to the mandrel outer surface and in communication with the electronics package.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: May 1, 2018
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Burkhard Zippel, Martin Helms, Mark Chandler, Simon J. Harrall
  • DART DETECTOR FOR WELLBORE TUBULAR CEMENTATION
    Publication number: 20150337648
    Abstract: A detector for use in cementing a tubular string in a wellbore includes: a tubular mandrel; an electronics package fastened to an outer surface of the mandrel; a first transducer: fastened to the mandrel outer surface, in communication with the electronics package, and operable to generate ultrasonic pulses; a second transducer: fastened to the mandrel outer surface, in communication with the electronics package, and operable to receive the ultrasonic pulses; and an antenna fastened to the mandrel outer surface and in communication with the electronics package.
    Type: Application
    Filed: May 20, 2015
    Publication date: November 26, 2015
    Inventors: Burkhard ZIPPEL, Martin HELMS, Mark CHANDLER, Simon J. HARRALL