Patents by Inventor Greg Nordgren

Greg Nordgren 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).

  • Outdwelling slit valves and assemblies for medical liquid flow through a cannula and related methods
    Patent number: 8092432
    Abstract: Novel outdwelling normally closed bulbous medical bidirectional slit valves and outdwelling slit valve assemblies for influent and effluent fluid flow into and from a medical patient are disclosed, as well as related methods.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: January 10, 2012
    Assignee: Nordgren Corporation
    Inventor: Greg Nordgren
  • Probe station
    Patent number: 7688062
    Abstract: A probe station for testing a wafer.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: March 30, 2010
    Assignee: Cascade Microtech, Inc.
    Inventors: Greg Nordgren, John Dunklee
  • Outdwelling slit valves and assemblies for medical liquid flow through a cannula and related methods
    Publication number: 20090259175
    Abstract: Novel outdwelling normally closed bulbous medical bidirectional slit valves and outdwelling slit valve assemblies for influent and effluent fluid flow into and from a medical patient are disclosed, as well as related methods.
    Type: Application
    Filed: May 29, 2009
    Publication date: October 15, 2009
    Inventor: Greg Nordgren
  • Probe station
    Patent number: 7554322
    Abstract: A probe station for testing a wafer.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: June 30, 2009
    Assignee: Cascade Microtech, Inc.
    Inventors: Greg Nordgren, John Dunklee
  • Manually activated flow/no flow medical slit valves and related methods
    Publication number: 20080215014
    Abstract: Slit valve technology is disclosed comprising medical slit valves and related methodology, the slit valves being either normally open or normally closed. A slit or slits are disposed in membranes or diaphragms spanning across the lumen of a cannula of elastomeric material with memory. Each slit valve is closed and opened by manual manipulation of an external actuator radially disposed outside the cannula. The elastomeric cannula are shown to be in the shape of a sleeve, which is connected to a housing of a medical valve assembly, although the present invention is not so limited.
    Type: Application
    Filed: March 1, 2007
    Publication date: September 4, 2008
    Inventor: Greg Nordgren
  • Probe station
    Publication number: 20080042670
    Abstract: A probe station for testing a wafer.
    Type: Application
    Filed: October 18, 2007
    Publication date: February 21, 2008
    Inventors: Greg Nordgren, John Dunklee
  • Probe station
    Publication number: 20080042376
    Abstract: A probe station for testing a wafer.
    Type: Application
    Filed: October 18, 2007
    Publication date: February 21, 2008
    Inventors: Greg Nordgren, John Dunklee
  • Probe station
    Publication number: 20080042669
    Abstract: A probe station for testing a wafer.
    Type: Application
    Filed: October 18, 2007
    Publication date: February 21, 2008
    Inventors: Greg Nordgren, John Dunklee
  • Outdwelling slit valves and assemblies for medical liquid flow through a cannula and related methods
    Publication number: 20060253084
    Abstract: Novel outdwelling nipple-shaped slit valves and outdwelling slit valve assemblies for influent and effluent fluid flow into and from a medical patient are disclosed, as well as related methods.
    Type: Application
    Filed: May 3, 2005
    Publication date: November 9, 2006
    Inventor: Greg Nordgren
  • Slit valves bridging between the tip and distal side wall of catheter tubes and methods
    Publication number: 20050283122
    Abstract: Slit valves are disclosed which are placed in normally closed distal catheter tips so as to extend somewhat into the wall at the distal ends of catheter tubes whereby different rates of flow through the slit valves are achieved for aspiration and infusion, respectively.
    Type: Application
    Filed: August 26, 2005
    Publication date: December 22, 2005
    Inventor: Greg Nordgren
  • Probe station
    Publication number: 20050179427
    Abstract: A probe station for testing a wafer.
    Type: Application
    Filed: March 16, 2005
    Publication date: August 18, 2005
    Inventors: Greg Nordgren, John Dunklee
  • Probe station
    Patent number: 6914423
    Abstract: A chuck assembly includes a rotational member and an auxiliary chuck. The rotational member is suitable for supporting a chuck thereon wherein the rotational member is rotatable with respect to the chuck assembly. The auxiliary chuck is free from rotating with respect to the chuck assembly.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: July 5, 2005
    Assignee: Cascade Microtech, Inc.
    Inventors: Greg Nordgren, John Dunklee
  • Slit valves for catheter tips and methods
    Publication number: 20050043703
    Abstract: Slit valves placed in normally closed distal tips at the leading end of catheter tubes are disclosed whereby tube passageway occlusion problems and body cavity interference problems are greatly reduced, if not eliminated.
    Type: Application
    Filed: August 21, 2003
    Publication date: February 24, 2005
    Inventor: Greg Nordgren
  • Probe station
    Publication number: 20020027434
    Abstract: A probe station for testing a wafer.
    Type: Application
    Filed: June 12, 2001
    Publication date: March 7, 2002
    Inventors: Greg Nordgren, John Dunklee