Patents by Inventor Danny L. Mickelson

Danny L. Mickelson 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).

  • Patent number: 7067445
    Abstract: A proppant mixture with an extended particle size distribution exhibits improved properties, such as crush strength and conductivity, as compared with a conventional product with a narrow size distribution.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: June 27, 2006
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Roy A. Webber, Danny L. Mickelson, Stephen K. Schubarth, Edwyn M. Snyder, Andrew T. Sheppard
  • Patent number: 6780804
    Abstract: A proppant mixture with an extended particle size distribution exhibits improved properties, such as crush strength and conductivity, as compared with a conventional product with a narrow size distribution.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: August 24, 2004
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Roy A. Webber, Danny L. Mickelson, Stephen K. Schubarth, Edwyn M. Snyder, Andrew T. Sheppard
  • Publication number: 20040147388
    Abstract: A proppant mixture with an extended particle size distribution exhibits improved properties, such as crush strength and conductivity, as compared with a conventional product with a narrow size distribution.
    Type: Application
    Filed: January 24, 2003
    Publication date: July 29, 2004
    Applicant: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Roy A. Webber, Danny L. Mickelson, Stephen K. Schubarth, Edwyn M. Snyder, Andrew T. Sheppard