Patents by Inventor Glenn M. Walker

Glenn M. Walker 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).

  • Method of pumping fluid through a microfluidic device
    Patent number: 8652852
    Abstract: A method is provided for pumping fluid through a channel of a microfluidic device. The channel has an input port and an output port. The channel is filled with fluid and a pressure gradient is generated between the fluid at the input port and the fluid at the output port. As a result, fluid flows through the channel towards the output port.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: February 18, 2014
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: David J. Beebe, Jay W. Warrick, Michael W. Toepke, Ivar Meyvantsson, Glenn M. Walker
  • Method Of Pumping Fluid Through A Microfluidic Device
    Publication number: 20120051947
    Abstract: A method is provided for pumping fluid through a channel of a microfluidic device. The channel has an input port and an output port. The channel is filled with fluid and a pressure gradient is generated between the fluid at the input port and the fluid at the output port. As a result, fluid flows through the channel towards the output port.
    Type: Application
    Filed: October 13, 2011
    Publication date: March 1, 2012
    Inventors: David J. Beebe, Jay W. Warrick, Michael W. Toepke, Ivar Meyvantsson, Glenn M. Walker
  • Method of pumping fluid through a microfluidic device
    Patent number: 8053249
    Abstract: A method is provided for pumping fluid through a channel of a microfluidic device. The channel has an input port and an output port. The channel is filled with fluid and a pressure gradient is generated between the fluid at the input port and the fluid at the output port. As a result, fluid flows through the channel towards the output port.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: November 8, 2011
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: David J. Beebe, Jay W. Warrick, Michael W. Toepke, Ivar Meyvantsson, Glenn M. Walker
  • METHOD OF PUMPING FLUID THROUGH A MICROFLUIDIC DEVICE
    Publication number: 20100288368
    Abstract: A method is provided for pumping fluid through a channel of a microfluidic device. The channel has an input port and an output port. The channel is filled with fluid and a pressure gradient is generated between the fluid at the input port and the fluid at the output port. As a result, fluid flows through the channel towards the output port.
    Type: Application
    Filed: March 12, 2007
    Publication date: November 18, 2010
    Inventors: David J. Beebe, Jay W. Warrick, Michael W. Toepke, Ivar Meyvantsson, Glenn M. Walker
  • Method of pumping fluid through a microfluidic device
    Patent number: 7189580
    Abstract: A method is provided for pumping fluid through a channel of a microfluidic device. The channel has an input port of a predetermined radius and an output port of a predetermined radius. The channel is filled with fluid and a pressure gradient is generated between the fluid between the input port and the fluid at the output port. As a result, fluid flows through the channel towards the output port.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: March 13, 2007
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: David J. Beebe, Glenn M. Walker
  • Method of obtaining a sample concentration of a solution in a microfluidic device
    Patent number: 7189581
    Abstract: A method is provided of obtaining a sample concentration of a solution in a microfluidic device. The microfluidic device includes a channel having a reservoir and a collection port. The channel is filled with a solution having particles therein. A reservoir drop is deposited over the reservoir of the channel such that the solution of the channel flows towards the collection port in response to evaporation of the solution at the collection port. The particles at the collection port are collected to obtain the sample concentration.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: March 13, 2007
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: David J. Beebe, Glenn M. Walker
  • Method of performing gradient-based assays in a microfluidic device
    Patent number: 7112444
    Abstract: A method is provided for performing a gradient-based assay in a microfluidic device. The method includes the steps of passing first and second fluids through a channel in the microfluidic device. The first fluid has a predetermined concentration of particles therein such that the particles in the first fluid diffuse into the second fluid so as to cause a gradient of concentration of particles in the second fluid as the second fluid flows through the channel. The second fluid sequentially intersects a series of targets along the channel wall as the second fluid flows through the channel.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: September 26, 2006
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: David J. Beebe, Glenn M. Walker
  • Method of performing gradient-based assays in a microfluidic device
    Publication number: 20040063151
    Abstract: A method is provided for performing a gradient-based assay in a microfluidic device. The method includes the steps of passing first and second fluids through a channel in the microfluidic device. The first fluid has a predetermined concentration of particles therein such that the particles in the first fluid diffuse into the second fluid so as to cause a gradient of concentration of particles in the second fluid as the second fluid flows through the channel. The second fluid sequentially intersects a series of targets along the channel wall as the second fluid flows through the channel.
    Type: Application
    Filed: April 24, 2003
    Publication date: April 1, 2004
    Inventors: David J. Beebe, Glenn M. Walker
  • Method of obtaining a sample concentration of a solution in a microfluidic device
    Publication number: 20030203506
    Abstract: A method is provided of obtaining a sample concentration of a solution in a microfluidic device. The microfluidic device includes a channel having a reservoir and a collection port. The channel is filled with a solution having particles therein. A reservoir drop is deposited over the reservoir of the channel such that the solution of the channel flows towards the collection port in response to evaporation of the solution at the collection port. The particles at the collection port are collected to obtain the sample concentration.
    Type: Application
    Filed: April 29, 2003
    Publication date: October 30, 2003
    Inventors: David J. Beebe, Glenn M. Walker
  • Method of pumping fluid through a microfluidic device
    Publication number: 20030132112
    Abstract: A method is provided for pumping fluid through a channel of a microfluidic device. The channel has an input port of a predetermined radius and an output port of a predetermined radius. The channel is filled with fluid and a pressure gradient is generated between the fluid between the input port and the fluid at the output port. As a result, fluid flows through the channel towards the output port.
    Type: Application
    Filed: October 16, 2002
    Publication date: July 17, 2003
    Inventors: David J. Beebe, Glenn M. Walker