Patents by Inventor Stephen C. Iverson

Stephen C. Iverson 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).

  • Patent number: 10144537
    Abstract: Systems and methods for dispensing radioactive liquids using a liquid dispensing apparatus are described. The apparatus includes a support arm rotatable about a rotation axis, an actuator operatively connected to the support arm and configured to at least one of rotate the support arm about the rotation axis and displace the support arm in a direction parallel to the rotation axis, and a pipette assembly mounted to the support arm. The pipette assembly includes a pipette tip defining an opening through which liquids are aspirated and dispensed, a piston, and a stepper motor operatively connected to the piston to control linear displacement of the piston.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: December 4, 2018
    Assignee: Mallinckrodt Nuclear Medicine LLC
    Inventors: Kevin B. Graves, Bryan S. Petrofsky, Brian J. Morton, Matthew S. Muraczewski, Lars Lindskog, Stephen C. Iverson, Rafael A. Martinez
  • Publication number: 20180148200
    Abstract: Systems and methods for dispensing radioactive liquids using a liquid dispensing apparatus are described. The apparatus includes a support arm rotatable about a rotation axis, an actuator operatively connected to the support arm and configured to at least one of rotate the support arm about the rotation axis and displace the support arm in a direction parallel to the rotation axis, and a pipette assembly mounted to the support arm. The pipette assembly includes a pipette tip defining an opening through which liquids are aspirated and dispensed, a piston, and a stepper motor operatively connected to the piston to control linear displacement of the piston.
    Type: Application
    Filed: November 30, 2016
    Publication date: May 31, 2018
    Inventors: Kevin B. Graves, Bryan S. Petrofsky, Brian J. Morton, Matthew S. Muraczewski, Lars Lindskog, Stephen C. Iverson, Rafael A. Martinez