Patents by Inventor Christopher Ognoskie

Christopher Ognoskie 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).

  • Selectively retrievable wear bushing for subsea or surface applications
    Publication number: 20050103503
    Abstract: The present invention is directed to an assembly for installing and selectively retrieving a wear bushing in the bore of a subsea or surface wellhead. The assembly includes a bit sub, which is adapted for attachment to a drill string, a drill string adapter removably coupled to the bit sub, and a wear bushing removably coupled to the drill string adapter and adapted to be recoupled to the drill string adapter for selective retrieval from the bore of the wellhead.
    Type: Application
    Filed: September 22, 2004
    Publication date: May 19, 2005
    Inventors: Gregory Williams, Christopher Ognoskie, John Beleski