Patents by Inventor Stig G. V. Hansson

Stig G. V. Hansson 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).

  • Fixture for use in a dental implant system
    Patent number: 5588838
    Abstract: A fixture, for use in a dental implant system, of the type having an upper portion with a conically flaring outer surface. The conically flaring outer surface is provided with a circumferentially oriented, defined micro-roughness, preferably in the form of threads or beads, having a height between 0.02 and 0.20 mm, and most preferably approximately 0.1 mm. In the preferred embodiment, the distance between adjacent threads or beads, crest to crest, is approximately twice the height of the threads or beads, respectively.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: December 31, 1996
    Assignee: Astra Aktiebolag
    Inventors: Stig G. V. Hansson, Anders Holmen
  • Single tooth fixture for use in oral implantology
    Patent number: D356868
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: March 28, 1995
    Assignee: Aktiebolaget Astra
    Inventors: Leif Broberg, Stig G. V. Hansson
  • Implant
    Patent number: D427684
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: July 4, 2000
    Assignee: Astra Aktiebolag
    Inventor: Stig G. V. Hansson