Patents by Inventor John Larsen

John Larsen 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: 10488320
    Abstract: A microfluidic chip orients and isolates components in a sample fluid mixture by two-step focusing, where sheath fluids compress the sample fluid mixture in a sample input channel in one direction, such that the sample fluid mixture becomes a narrower stream bounded by the sheath fluids, and by having the sheath fluids compress the sample fluid mixture in a second direction further downstream, such that the components are compressed and oriented in a selected direction to pass through an interrogation chamber in single file formation for identification and separation by various methods. The isolation mechanism utilizes external, stacked piezoelectric actuator assemblies disposed on a microfluidic chip holder, or piezoelectric actuator assemblies on-chip, so that the actuator assemblies are triggered by an electronic signal to actuate jet chambers on either side of the sample input channel, to jet selected components in the sample input channel into one of the output channels.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: November 26, 2019
    Assignee: ABS GLOBAL, INC.
    Inventors: Zheng Xia, Yu Zhou, John Larsen, Guocheng Shao, Shane Peterson, Marjorie Faust
  • Publication number: 20190187044
    Abstract: A method of inseminating an animal including flowing a stream of a population of sperm cells through a channel, differentiating the sperm cells into two subpopulations of X-chromosome containing sperm cells and Y-chromosome containing sperm cells, selecting a desired subpopulation, ablating an undesired subpopulation, and collecting both the subpopulations of sperm cells including the desired subpopulation and the ablated undesired subpopulation together, wherein the collected population of sperm cells is used to fertilize an egg.
    Type: Application
    Filed: February 19, 2019
    Publication date: June 20, 2019
    Inventors: David Appleyard, Jeff Betthauser, Marjorie Faust, John Larsen, Guocheng Shao, Zheng Xia, Yu Zhou
  • Publication number: 20180126376
    Abstract: This disclosure concerns a method of providing a hydrophobic coating on a microfluidic chip that promotes the discrete flow of at least one liquid. It includes applying the hydrophobic coating onto an area of the microfluidic chip. The disclosure further includes a microfluidic chip that provides discrete flow of at least one liquid.
    Type: Application
    Filed: September 12, 2017
    Publication date: May 10, 2018
    Inventors: John Larsen, Yu Zhou, Zheng Xia
  • Publication number: 20170167966
    Abstract: An apparatus and method of identifying objects includes: a microfluidic chip in which are disposed a plurality of channels, the micro-fluidic chip including: a main fluid channel into which a sample fluid mixture of objects to be identified is introduced; a plurality of sheath fluid channels into which sheath fluids are introduced, the sheath fluids which orient the objects in the main fluid channel in a predetermined direction while still maintaining laminar flow in the main fluid channel; an interrogation apparatus which detects and interrogates the oriented objects in the main fluid channel; and a focused energy apparatus which performs an action on the objects.
    Type: Application
    Filed: December 21, 2016
    Publication date: June 15, 2017
    Inventors: David Appleyard, Jeff Betthauser, Marjorie Faust, John Larsen, Guocheng Shao, Zheng Xia, Yu Zhou
  • Patent number: 9588100
    Abstract: An apparatus and method of identifying objects includes: a microfluidic chip in which are disposed a plurality of channels, the microfluidic chip including: a main fluid channel into which a sample fluid mixture of objects to be identified is introduced; a plurality of sheath fluid channels into which sheath fluids are introduced, the sheath fluids which orient the objects in the main fluid channel in a predetermined direction while still maintaining laminar flow in the main fluid channel; an interrogation apparatus which detects and interrogates the oriented objects in the main fluid channel; and a focused energy apparatus which performs an action on the objects.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: March 7, 2017
    Assignee: PREMIUM GENETICS (UK) LTD
    Inventors: David Appleyard, Jeff Betthauser, Marjorie Faust, John Larsen, Guocheng Shao, Zheng Xia, Yu Zhou
  • Publication number: 20170052105
    Abstract: An apparatus and method of identifying objects includes: a microfluidic chip in which are disposed a plurality of channels, the microfluidic chip including: a main fluid channel into which a sample fluid mixture of objects to be identified is introduced; a plurality of sheath fluid channels into which sheath fluids are introduced, the sheath fluids which orient the objects in the main fluid channel in a predetermined direction while still maintaining laminar flow in the main fluid channel; an interrogation apparatus which detects and interrogates the oriented objects in the main fluid channel; and a focused energy apparatus which performs an action on the objects.
    Type: Application
    Filed: June 18, 2014
    Publication date: February 23, 2017
    Inventors: David Appleyard, Jeff Betthauser, Marjorie Faust, John Larsen, Guocheng Shao, Zheng Xia, Yu Zhou
  • Publication number: 20150114093
    Abstract: An apparatus and method of identifying objects includes: a microfluidic chip in which are disposed a plurality of channels, the microfluidic chip including: a main fluid channel into which a sample fluid mixture of objects to be identified is introduced; a plurality of sheath fluid channels into which sheath fluids are introduced, the sheath fluids which orient the objects in the main fluid channel in a predetermined direction while still maintaining laminar flow in the main fluid channel; an interrogation apparatus which detects and interrogates the oriented objects in the main fluid channel; and a focused energy apparatus which performs an action on the objects.
    Type: Application
    Filed: June 18, 2014
    Publication date: April 30, 2015
    Applicant: PREMIUM GENETICS (UK) LTD.
    Inventors: David APPLEYARD, Jeff BETTHAUSER, Marjorie FAUST, John LARSEN, Guocheng SHAO, Zheng XIA, Yu ZHOU
  • Publication number: 20150111196
    Abstract: A microfluidic chip orients and isolates components in a sample fluid mixture by two-step focusing, where sheath fluids compress the sample fluid mixture in a sample input channel in one direction, such that the sample fluid mixture becomes a narrower stream bounded by the sheath fluids, and by having the sheath fluids compress the sample fluid mixture in a second direction further downstream, such that the components are compressed and oriented in a selected direction to pass through an interrogation chamber in single file formation for identification and separation by various methods. The isolation mechanism utilizes external, stacked piezoelectric actuator assemblies disposed on a microfluidic chip holder, or piezoelectric actuator assemblies on-chip, so that the actuator assemblies are triggered by an electronic signal to actuate jet chambers on either side of the sample input channel, to jet selected components in the sample input channel into one of the output channels.
    Type: Application
    Filed: December 22, 2014
    Publication date: April 23, 2015
    Applicant: PREMIUM GENETICS (UK) LTD.
    Inventors: Zheng XIA, Yu ZHOU, John LARSEN, Guocheng SHAO, Shane PETERSON, Marjorie FAUST
  • Patent number: 8961904
    Abstract: A microfluidic chip orients and isolates components in a sample fluid mixture by two-step focusing, where sheath fluids compress the sample fluid mixture in a sample input channel in one direction, such that the sample fluid mixture becomes a narrower stream bounded by the sheath fluids, and by having the sheath fluids compress the sample fluid mixture in a second direction further downstream, such that the components are compressed and oriented in a selected direction to pass through an interrogation chamber in single file formation for identification and separation by various methods. The isolation mechanism utilizes external, stacked piezoelectric actuator assemblies disposed on a microfluidic chip holder, or piezoelectric actuator assemblies on-chip, so that the actuator assemblies are triggered by an electronic signal to actuate jet chambers on either side of the sample input channel, to jet selected components in the sample input channel into one of the output channels.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: February 24, 2015
    Assignee: Premium Genetics (UK) Ltd.
    Inventors: Zheng Xia, Yu Zhou, John Larsen, Guocheng Shao, Shane Peterson, Marjorie Faust
  • Publication number: 20150024373
    Abstract: A microfluidic chip orients and isolates components in a sample fluid mixture by two-step focusing, where sheath fluids compress the sample fluid mixture in a sample input channel in one direction, such that the sample fluid mixture becomes a narrower stream bounded by the sheath fluids, and by having the sheath fluids compress the sample fluid mixture in a second direction further downstream, such that the components are compressed and oriented in a selected direction to pass through an interrogation chamber in single file formation for identification and separation by various methods. The isolation mechanism utilizes external, stacked piezoelectric actuator assemblies disposed on a microfluidic chip holder, or piezoelectric actuator assemblies on-chip, so that the actuator assemblies are triggered by an electronic signal to actuate jet chambers on either side of the sample input channel, to jet selected components in the sample input channel into one of the output channels.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 22, 2015
    Inventors: Zheng XIA, Yu ZHOU, John LARSEN, Guocheng SHAO, Shane PETERSON, Marjorie FAUST
  • Publication number: 20110051913
    Abstract: A method and system are described for collating all avenues of communication through a single source. A user provides communication information to a service provider. The service provider associates this communication information with an identification code. The user then provides the identification code to new contacts instead of the user's communication information. When the contact tries to communicate with the user, the identification code directs the contact to the service provider. The service provider checks to see if the contact is permitted to communicate with the user. If permission is granted, the service provider routes the communication to the user, preferably in a format specified by the user.
    Type: Application
    Filed: September 3, 2010
    Publication date: March 3, 2011
    Inventor: John Larsen Kesler
  • Patent number: 7715789
    Abstract: Method affecting the interior of human flesh, providing modulated power signal to at least one solenoid to create a modulated solenoid action delivered through a mechanical interface to the human flesh to create a modulated audio effect into the interior. Providing the modulated power signal may include receiving an audio signal to create the modulated power signal, which may include fetching a down-converted audio signal and the audio signal from a memory device and/or frequency-down-converting the audio signal to create the down-converted audio signal. Receiving the audio signal may further include solenoid amplifying the down-converted signal to create the modulated power signal. The modulated audio effect into the interior of the human flesh, the modulated power signal and the down-converted audio signal are products of this method. Apparatus implementing the solenoid amplifying, receiving the audio signal, frequency-down-converting the audio signal in a variety of configurations.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: May 11, 2010
    Assignee: Song Park
    Inventors: Song Park, Earle Jennings, Robert Spence, John Larsen
  • Patent number: 7322926
    Abstract: A centrifugal device comprising: a rotor having a rotor shaft having a longitudinal rotor axis; a holder having an access end, and a holder axis; a location mechanism for locating the holder within the centrifugal device, such that the holder is rotatable about the rotor axis, with the holder axis forming a non-zero angle with the rotor shaft axis, the location mechanism accurately locating the access end of the holder within the centrifugal device, wherein the location mechanism comprises a holding pin having an axis that is substantially perpendicular to the rotor axis, the holding pin being rotatable about the rotor axis.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: January 29, 2008
    Assignee: Sophion Bioscience A/S
    Inventors: Jorgen Due, Karen-Margrethe Krzywkowski, Nicholas Oswald, John Larsen, Henrik Vennerberg
  • Publication number: 20060287182
    Abstract: A centrifugal device comprising: a rotor having a rotor shaft having a longitudinal rotor axis; a holder having an access end, and a holder axis; location means for locating the holder within the centrifugal device, such that the holder is rotatable about the rotor axis, with the holder axis forming a non-zero angle with the rotor shaft axis, the location means accurately locating the access end of the holder within the centrifugal device, wherein the location means comprises a holding pin having an axis that is substantially perpendicular to the rotor axis, the holding pin being rotatable about the rotor axis.
    Type: Application
    Filed: February 23, 2004
    Publication date: December 21, 2006
    Applicant: SOPHION BIOSCIENCE A/S
    Inventors: Jorgen Due, Karen-Margarethe Krzywkowksi, Nicholas Oswald, John Larsen, Henrik Vennerberg
  • Publication number: 20060183961
    Abstract: Method affecting the interior of human flesh, providing modulated power signal to at least one solenoid to create a modulated solenoid action delivered through a mechanical interface to the human flesh to create a modulated audio effect into the interior. Providing the modulated power signal may include receiving an audio signal to create the modulated power signal, which may include fetching a down-converted audio signal and the audio signal from a memory device and/or frequency-down-converting the audio signal to create the down-converted audio signal. Receiving the audio signal may further include solenoid amplifying the down-converted signal to create the modulated power signal. The modulated audio effect into the interior of the human flesh, the modulated power signal and the down-converted audio signal are products of this method. Apparatus implementing the solenoid amplifying, receiving the audio signal, frequency-down-converting the audio signal in a variety of configurations.
    Type: Application
    Filed: January 20, 2006
    Publication date: August 17, 2006
    Inventors: Song Park, Earle Jennings, Robert Spence, John Larsen
  • Publication number: 20060178797
    Abstract: A method of preventing undesirable vehicle behavior in a vehicle torque control system that includes determining an expected axle torque based on a vehicle speed, a powerplant profile, an accelerator pedal position and/or a cruise control signal. The method also includes estimating an actual axle torque of a powerplant based on a powerplant maximum torque, a throttle position and powertrain inefficiencies and converting the expected axle torque to an expected acceleration and the actual axle torque to an actual acceleration based on a wheel radius and a road load. The method further includes regulating a torque output of a powerplant when a rate-of-change in a difference between the expected acceleration and the estimated actual acceleration is greater than a first threshold.
    Type: Application
    Filed: February 9, 2005
    Publication date: August 10, 2006
    Inventors: John Larsen, Gene Dimarco, Timothy Hartrey, Tom Ender
  • Publication number: 20040083153
    Abstract: A method and system for evaluating internal business investments by estimating decision-factor variations provides a powerful decision-making tool for deciding whether or not to invest in a particular internal business option or for selecting between business investment alternatives. The investment may be a capital investment, a program investment, personnel investment or other business strategy. Variations in cost, benefit, strategic alignment and risk values input to the business decision tool are used to adjust the business value of a business case. The variations can be estimated from data gathered from surveys of personnel rating a confidence or perceived variation from the input values, variations may be estimated in the computed business value due to interdependencies to other adopted or non-adopted business cases, or variations may be estimated based on actual historical collected data on business case performance.
    Type: Application
    Filed: August 6, 2003
    Publication date: April 29, 2004
    Inventors: John Larsen, Justin Parke
  • Patent number: 5012660
    Abstract: In an arrangement for a tandem cold mill in order to compensate for "speed effect," each stand has a roll force memory unit and an oil film roll force controller unit which operate together, and in conjunction with a tensiometer, to maintain a relatively constant roll gap during the acceleration and deceleration phases of the mill. In threading, in tailing out, and in a full run speed of the mill, the roll force memory unit is constantly operating to obtain a "lock on" roll force reference for the stand prior to the acceleration or deceleration phase. A roll force error signal, which is the difference between a roll force reference of the roll force memory unit and an instantaneous roll force, enters the oil film roll controller. A proportional integrator type controller in the oil film roll force controller unit changes the roll force error signal within a limit of +25% of the desired tension.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: May 7, 1991
    Assignee: AEG Westinghouse Industrial Automation Corporation
    Inventors: Robert S. Peterson, John A. Larsen
  • Patent number: 4998427
    Abstract: A method for making delivery gauge corrections at low mill speeds during threading and tailing out of a workpiece by varying the interstand tension of the workpiece. The tension between the last two stands is used with a desired tension and the delivery AGC by tension mode of an existing delivery automatic gauge control (AGC) to change the speed of the downstream stands. During the threading and tailing out phases, the delivery AGC by speed is turned off and set to zero. In the full run phase, the interstand regulators are changed to a tension by roll gap mode, and an existing delivery automatic gauge control (AGC) by speed is used to provide a stand speed reference for the downstream stands. In the full run phase, the delivery (AGC) by tension is turned off an set to zero. In the tailing out phase optionally, the tension between each stand is used in a similar manner to provide a speed reference change for each stand immediately downstream from where a tension controller is located.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: March 12, 1991
    Assignee: AEG Westinghouse Industrial Automation Corporation
    Inventors: Robert S. Peterson, John A. Larsen
  • Patent number: D806826
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: January 2, 2018
    Assignee: Hach Company
    Inventors: Michael John Larsen, Jonathan Paul Janney, Paul Perlic, Alexander Evan Roeca