Patents by Inventor David S. Haffner

David S. Haffner 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).

  • Syringe flange adapter and method
    Patent number: 5554133
    Abstract: A syringe comprising a barrel having a longitudinal passage extending through the barrel and a plunger slidable in the passage of the barrel. The barrel has connector adjacent one end of the barrel for attaching a cannula to the barrel and a flange adjacent the other end of the barrel. An adapter having a passage extending through it is mounted on the barrel with the adapter engaging the flange of the barrel. The adapter extends radially beyond the flange to form finger pads.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: September 10, 1996
    Assignee: Allergan, Inc.
    Inventors: David S. Haffner, Kenneth E. Kadziauskas
  • Syringe flange adapter and method
    Patent number: 5419775
    Abstract: A syringe comprising a barrel having a longitudinal passage extending through the barrel and a plunger slidable in the passage of the barrel. The barrel has connector adjacent one end of the barrel for attaching a cannula to the barrel and a flange adjacent the other end of the barrel. An adapter having a passage extending through it is mounted on the barrel with the adapter engaging the flange of the barrel. The adapter extends radially beyond the flange to form finger pads.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: May 30, 1995
    Assignee: Allergan, Inc.
    Inventors: David S. Haffner, Kenneth E. Kadziauskas