Patents by Inventor Steven M. Rosenberg

Steven M. Rosenberg 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).

  • Stage cementing methods used in casing while drilling
    Patent number: 7857052
    Abstract: Apparatus and methods are provided for a cementing operation for use with a drilling with casing application. In one embodiment, an apparatus is provided for stage cementing using a full opening stage tool. In another embodiment, an apparatus is provided for reverse cementing of the casing.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: December 28, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Richard Lee Giroux, Steven M. Rosenberg