Patents by Inventor Christopher Birch

Christopher Birch 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).

  • Publication number: 20240169011
    Abstract: A computing device can present, within a display, first network-associated content and a tab strip, the first network-associated content being associated with a first content locator, the tab strip including a first content indicator associated with the first content locator and a second content indicator associated with a second content locator, receive a directional input associated with the tab strip, in response to receiving the directional input, modify the presentation of the tab strip, the modification ending presentation of the first content indicator and initiating presentation of a third content indicator, the third content indicator being associated with a third content locator, receive a selection of the third content indicator, and in response to receiving the selection of the third content indicator, present second network-associated content at a location where the first network-associated content was previously presented, the second network-associated content being associated with the third con
    Type: Application
    Filed: December 20, 2023
    Publication date: May 23, 2024
    Inventors: Samuel Birch, Yusuf Ozuysal, Christopher Matthew Lee, Mei Liang, Wei-Yin Chen, Yue Zhang, Ayman Almadhoun
  • Publication number: 20230072999
    Abstract: A collection device for a biological sample to capture target compounds such as viruses or other pathogens or particles for testing from within the sample and move the captured target compound to a separate chamber for subsequent processing. The collection device can include an openable substance blister including capture particles located in a cup interior. Capture particles can attract and bind the target compounds from the sample. An extraction tube extracts any nucleic acid from the target compound for storage or subsequent amplification and testing to confirm presence of known microorganisms. The extraction tube can comprise a heat-deformable material and can be connected to a microfluidic cartridge for further processing of nucleic acid including, amplification and detection. The microfluidic cartridge includes valves and a plurality of chambers for amplification.
    Type: Application
    Filed: August 5, 2022
    Publication date: March 9, 2023
    Inventors: Orion Scott, Christopher Birch, Daniel Mills, Brian Root, James Landers, Jingyi Li, Matthew Yeung, David Saul, David Vigil, Andrew Guy, Stan Wada, Betina De Gorordo, Steward Dodman, Tom Moran, Stuart Knowles, Fernando Dias, Rick Gardner
  • Patent number: 11465145
    Abstract: A collection device for a biological sample to capture target compounds such as viruses or other pathogens or particles for testing from within the sample and move the captured target compound to a separate chamber for subsequent processing. The collection device can include an openable substance blister including capture particles located in a cup interior. Capture particles can attract and bind the target compounds from the sample. An extraction tube extracts any nucleic acid from the target compound for storage or subsequent amplification and testing to confirm presence of known microorganisms. The extraction tube can comprise a heat-deformable material and can be connected to a microfluidic cartridge for further processing of nucleic acid including, amplification and detection. The microfluidic cartridge includes valves and a plurality of chambers for amplification.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: October 11, 2022
    Inventors: Orion Scott, Christopher Birch, Daniel Mills, Brian Root, James Landers, Jingyi Li, Matthew Yeung, David Saul, David Vigil, Andrew Guy, Stan Wada, Betina De Gorordo, Steward Dodman, Tom Moran, Stuart Knowles, Fernando Dias, Rick Gardner
  • Publication number: 20220097042
    Abstract: A method to extract, amplify and separate nucleic acid in a microfluidic device having a plurality of chambers and channels can include a) introducing cells having nucleic acid to a first chamber of the microfluidic device and subjecting the cells in the first chamber to conditions that lyse the cells. The method can further include b) subjecting the first chamber to centrifugal force, thereby allowing the lysate or a portion thereof having nucleic acid to be distributed to a second chamber through a first channel in the microfluidic device. The method can also include c) combining the lysate or the portion thereof and reagents for amplification of the nucleic acid, thereby providing a second mixture. The method can also include d) subjecting the second chamber to centrifugal force, thereby allowing gas to be expelled from the second mixture.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 31, 2022
    Inventors: James P. Landers, Jacquelyn A. DuVall, Delphine Le Roux, Brian Root, Daniel Mills, Daniel A. Nelson, An-chi Tsuei, Brandon L. Thompson, Jingyi Li, Christopher Birch
  • Publication number: 20220088601
    Abstract: A collection device for a biological sample to capture target compounds such as viruses or other pathogens or particles for testing from within the sample and move the captured target compound to a separate chamber for subsequent processing. The collection device can include an openable substance blister including capture particles located in a cup interior. Capture particles can attract and bind the target compounds from the sample. An extraction tube extracts any nucleic acid from the target compound for storage or subsequent amplification and testing to confirm presence of known microorganisms. The extraction tube can comprise a heat-deformable material and can be connected to a microfluidic cartridge for further processing of nucleic acid including, amplification and detection. The microfluidic cartridge includes valves and a plurality of chambers for amplification.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 24, 2022
    Inventors: ORION SCOTT, CHRISTOPHER BIRCH, DANIEL MILLS, BRIAN ROOT, JAMES LANDERS, JINGYI LI, MATTHEW YEUNG, DAVID SAUL, DAVID VIGIL, ANDREW GUY ., STAN WADA, BETINA DE GORORDO, STEWARD DODMAN, TOM MORAN, STUART KNOWLES, FERNANDO DIAS, RICK GARDNER
  • Patent number: 11135583
    Abstract: A method to extract, amplify and separate nucleic acid in a microfluidic device having a plurality of chambers and channels can include a) introducing cells having nucleic acid to a first chamber of the microfluidic device and subjecting the cells in the first chamber to conditions that lyse the cells. The method can further include b) subjecting the first chamber to centrifugal force, thereby allowing the lysate or a portion thereof having nucleic acid to be distributed to a second chamber through a first channel in the microfluidic device. The method can also include c) combining the lysate or the portion thereof and reagents for amplification of the nucleic acid, thereby providing a second mixture. The method can also include d) subjecting the second chamber to centrifugal force, thereby allowing gas to be expelled from the second mixture.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: October 5, 2021
    Assignee: University of Virginia Patent Foundation
    Inventors: James P. Landers, Jacquelyn A. DuVall, Delphine Le Roux, Brian Root, Daniel Mills, Daniel A. Nelson, An-Chi Tsuei, Brandon L. Thompson, Jingyi Li, Christopher Birch
  • Publication number: 20180304253
    Abstract: A method to extract, amplify and separate nucleic acid in a microfluidic device having a plurality of chambers and channels can include a) introducing cells having nucleic acid to a first chamber of the microfluidic device and subjecting the cells in the first chamber to conditions that lyse the cells. The method can further include b) subjecting the first chamber to centrifugal force, thereby allowing the lysate or a portion thereof having nucleic acid to be distributed to a second chamber through a first channel in the microfluidic device. The method can also include c) combining the lysate or the portion thereof and reagents for amplification of the nucleic acid, thereby providing a second mixture. The method can also include d) subjecting the second chamber to centrifugal force, thereby allowing gas to be expelled from the second mixture.
    Type: Application
    Filed: October 13, 2016
    Publication date: October 25, 2018
    Inventors: James P. Landers, Jacquelyn A. DuVall, Delphine Le Roux, Brian Root, Daniel MIlls, Daniel A. Nelson, An-chi Tsuei, Brandon L. Thompson, Jingyi Li, Christopher Birch
  • Patent number: 6787960
    Abstract: An AC induction motor has separate start and run windings radially separated in slots in the stator laminations. The start windings are arranged in the radially outer portions of the slots to aid heat dissipation and to increase the flux linkage so as to reduce inrush current during starting. The motor is started by switching on the start windings initially, and switching on the run windings in phase with the start windings when the motor reaches its running speed, but before switching off the start windings. In this way, the surge current during switching between the start and run windings is reduced.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: September 7, 2004
    Assignee: Eaton Corporation
    Inventors: Eric So, Steven Christopher Birch, Guy John Middleton
  • Publication number: 20020195987
    Abstract: An AC induction motor has separate start and run windings radially separated in slots in the stator laminations. The start windings are arranged in the radially outer portions of the slots to aid heat dissipation and to increase the flux linkage so as to reduce inrush current during starting. The motor is started by switching on the start windings initially, and switching on the run windings in phase with the start windings when the motor reaches its running speed, but before switching off the start windings. In this way, the surge current during switching between the start and run windings is reduced.
    Type: Application
    Filed: June 5, 2002
    Publication date: December 26, 2002
    Inventors: Eric So, Steven Christopher Birch, Guy John Middleton