Patents by Inventor Robert Damstra

Robert Damstra 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).

  • Implant with structure for securing a porous portion
    Patent number: 8899982
    Abstract: An implant includes a head portion, an intermediate portion and an initially separate stem portion configured to engage the head portion so that at least the head portion and the stem portion cooperatively secure the intermediate portion on the implant. The implant may also include a locking mechanism configured to secure the head portion to the stem portion by a press fit or a threaded connection. The intermediate portion may include a porous metal such as tantalum.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: December 2, 2014
    Assignee: Zimmer Dental, Inc.
    Inventors: Robert Damstra, Joseph A. Salvi, Shahram Zamani, Mojtaba Esfahani
  • IMPLANT WITH STRUCTURE FOR SECURING A POROUS PORTION
    Publication number: 20100003640
    Abstract: An implant includes a head portion, an intermediate portion and an initially separate stem portion configured to engage the head portion so that at least the head portion and the stem portion cooperatively secure the intermediate portion on the implant. The implant may also include a locking mechanism configured to secure the head portion to the stem portion by a press fit or a threaded connection. The intermediate portion may include a porous metal such as tantalum.
    Type: Application
    Filed: July 2, 2008
    Publication date: January 7, 2010
    Inventors: Robert Damstra, Joseph A. Salvi, Shahram Zamani, Mojtaba Esfahani