Patents by Inventor Duenckel Robert

Duenckel Robert 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).

  • Tagged Propping Agents and Related Methods
    Publication number: 20080210421
    Abstract: A proppant composition comprises a non-radioactive, detectable tracer at least partially embedded in a ceramic composition. The composition may be prepared by agglomerating granules of the ceramic material and granules of the non-radioactive, detectable material to produce the particle by compression. Backflow of proppants in a fractured subterranean formation into which a plurality of particles of the proppant composition have been introducted may be tracked by analyzing a sample of the backflow by detecting for presence of the tracer in the sample.
    Type: Application
    Filed: March 22, 2005
    Publication date: September 4, 2008
    Applicant: CARBO CERAMICS INCORPORATED
    Inventors: Brett A. Wilson, Duenckel Robert, Thomas C. Palamara