Patents by Inventor Craig Hahne

Craig Hahne 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).

  • Self drilling bone screw
    Patent number: 7819905
    Abstract: A self-drilling bone screw includes a screw body centered on a longitudinal axis and having an external thread winding. The bone screw has a head portion at one end of the screw body and a drill point at the other end. The drill point has two blades, each having a cutting lip and a primary relief surface trailing from the cutting lip. The two blades defining a flute between them. The flute has an opening to the side of the screw body, which opening spans an obtuse angle, such as about 120°, about the longitudinal axis. The primary relief surfaces have a lip relief angle of about 30°. The drill point has a point angle of about 100°.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: October 26, 2010
    Assignee: Zimmer Spine, Inc.
    Inventors: Gene Newcomb, Craig Hahne, Jason Piehl, Kevin V. Guenther
  • Self drilling bone screw
    Publication number: 20060149263
    Abstract: A self-drilling bone screw includes a screw body centered on a longitudinal axis and having an external thread winding. The bone screw has a head portion at one end of the screw body and a drill point at the other end. The drill point has two blades, each having a cutting lip and a primary relief surface trailing from the cutting lip. The two blades defining a flute between them. The flute has an opening to the side of the screw body, which opening spans an obtuse angle, such as about 120°, about the longitudinal axis. The primary relief surfaces have a lip relief angle of about 30°. The drill point has a point angle of about 100°.
    Type: Application
    Filed: December 17, 2004
    Publication date: July 6, 2006
    Applicant: Zimmer Spine, Inc.
    Inventors: Gene Newcomb, Craig Hahne, Jason Piehl, Kevin Guenther