Patents by Inventor Constantin Vasile Popilian

Constantin Vasile Popilian 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).

  • Barrier seal and assembly incorporating same
    Patent number: 8444183
    Abstract: A barrier seal includes a bulkhead having a first end, a second end and a surface extending between the first end and the second end. The barrier seal further includes a rib extending radially outwardly from the surface of the bulkhead. The rib defines a first sealing profile extending from a first side of the rib and a second sealing profile extending from a second side of the rib.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: May 21, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Nathan Kathol, Vi (Jim) Nguy, Constantin Vasile Popilian