Patents by Inventor Geoffrey Dahlhoff

Geoffrey Dahlhoff 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: 20230184714
    Abstract: The present disclosure relates, in some embodiments, to a system for measuring capillary electrophoresis current. The system includes a plurality of capillaries, where each capillary has a cathode end and an anode end. The system further includes a plurality of cathode buffers. Each of the cathode buffers is configured to be electrically isolated from the other cathode buffers. Further, each cathode buffer is associated with one capillary of the plurality of capillaries. The cathode end of each capillary is immersed in its associated cathode buffer. The system includes a plurality of current sensors, each current sensor associated with one capillary of the plurality of capillaries for measuring current. In some embodiments, the plurality of capillaries is four capillaries.
    Type: Application
    Filed: February 9, 2023
    Publication date: June 15, 2023
    Applicant: LIFT TECHNOLOGIES CORPORATION
    Inventors: Marc Haberstroh, Geoffrey DAHLHOFF
  • Patent number: 11339425
    Abstract: A biological analysis system is provided. The system comprises an interchangeable assembly configured to accommodate any one of a plurality of sample holders, each respective sample holder configured to receive a plurality of samples. The system also includes a control system configured to cycle the plurality of samples through a series of temperatures. The system further includes an optical system configured to detect fluorescent signals emitted from the plurality of samples. The optical system, in particular, can comprise a single field lens, an excitation source, an optical sensor, and a plurality of filter components. The excitation source can be one or more light emitting diodes. The field lends can be a bi-convex lens.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: May 24, 2022
    Assignee: LIFE TECHNOLOGIES CORPORATION
    Inventors: Jacob K. Freudenthal, Geoffrey Dahlhoff, Kevin Maher, Ming Song Chen, Gary Lim, Ronald Danehy, David Fortescue, Ming Shen, Woon Liang Soh, Francis T. Cheng, Ruoyun Wu, Thiam Chye Lee, Gary A. Chappell, Chee Kiong Lim, Jeff Dere, Ted Straub, Jorge Fonseca, Kuan Moon Boo, Soo Yong Lau
  • Publication number: 20190300936
    Abstract: A biological analysis system is provided. The system comprises an interchangeable assembly configured to accommodate any one of a plurality of sample holders, each respective sample holder configured to receive a plurality of samples. The system also includes a control system configured to cycle the plurality of samples through a series of temperatures. The system further includes an optical system configured to detect fluorescent signals emitted from the plurality of samples. The optical system, in particular, can comprise a single field lens, an excitation source, an optical sensor, and a plurality of filter components. The excitation source can be one or more light emitting diodes. The field lends can be a bi-convex lens.
    Type: Application
    Filed: April 12, 2019
    Publication date: October 3, 2019
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Jacob K. FREUDENTHAL, Geoffrey DAHLHOFF, Kevin MAHER, Ming Song CHEN, Gary LIM, Ronald DANEHY, David FORTESCUE, Ming SHEN, Woon Liang Soh, Francis T. CHENG, Ruoyun WU, Thiam Chye LEE, Gary A. CHAPPELL, Chee Kiong LIM, Jeff DERE, Ted E. STRAUB, Jorge FONSECA, Kuan Moon BOO, Soo Yong LAU
  • Publication number: 20190187093
    Abstract: The present disclosure relates, in some embodiments, to a system for measuring capillary electrophoresis current. The system includes a plurality of capillaries (206), where each capillary has a cathode end and an anode end. The system further includes a plurality of cathode buffers (202). Each of the cathode buffers is configured to be electrically isolated from the other cathode buffers. Further, each cathode buffer (202) is associated with one capillary (206) of the plurality of capillaries. The cathode end of each capillary (206) is immersed in its associated cathode buffer (202). The system includes a plurality of current sensors (204), each current sensor associated with one capillary of the plurality of capillaries for measuring current. In some embodiments, the plurality of capillaries is four capillaries.
    Type: Application
    Filed: September 8, 2017
    Publication date: June 20, 2019
    Inventors: Marc HABERSTROH, Geoffrey DAHLHOFF
  • Publication number: 20180350628
    Abstract: The present teachings disclose various embodiments of a thermal block assembly having low thermal non-uniformity throughout the thermal block assembly. Accordingly, various embodiments of thermal block assemblies having such low thermal non-uniformity provide for desired performance of bioanalysis instrumentation utilizing such thermal block assemblies.
    Type: Application
    Filed: August 9, 2018
    Publication date: December 6, 2018
    Inventors: Janusz WOJTOWICZ, Geoffrey DAHLHOFF, Douglas W. Grunewald, Thomas A. CONNER
  • Patent number: 10049895
    Abstract: The present teachings disclose various embodiments of a thermal block assembly having low thermal non-uniformity throughout the thermal block assembly. Accordingly, various embodiments of thermal block assemblies having such low thermal non-uniformity provide for desired performance of bioanalysis instrumentation utilizing such thermal block assemblies.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: August 14, 2018
    Assignee: Life Technologies Corporation
    Inventors: Janusz Wojtowicz, Geoffrey Dahlhoff, Douglas W. Grunewald, Thomas A. Conner
  • Publication number: 20140213487
    Abstract: A biological analysis system is provided. The system comprises an interchangeable assembly configured to accommodate any one of a plurality of sample holders, each respective sample holder configured to receive a plurality of samples. The system also includes a control system configured to cycle the plurality of samples through a series of temperatures. The system further includes an optical system configured to detect fluorescent signals emitted from the plurality of samples. The optical system, in particular, can comprise a single field lens, an excitation source, an optical sensor, and a plurality of filter components. The excitation source can be one or more light emitting diodes. The field lens can be a bi-convex lens.
    Type: Application
    Filed: September 28, 2012
    Publication date: July 31, 2014
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Jacob K. Freudenthal, Geoffrey Dahlhoff, Kevin Maher, Ming Song Chen, Gary Lim, Ronald Danehy, David Fortescue, Ming Shen, Woon Liang Soh, Francis T. Cheng, Ruoyun Wu, Thiam Chye Lee, Gary A. Chappell, Chee Kiong Lim, Jeff Dere, Theodore E. Straub, Jorge Fonseca, Kuan Moon Boo, Soo Yong Lau
  • Publication number: 20110056661
    Abstract: The present teachings disclose various embodiments of a thermal block assembly having low thermal non-uniformity throughout the thermal block assembly. Accordingly, various embodiments of thermal block assemblies having such low thermal non-uniformity provide for desired performance of bioanalysis instrumentation utilizing such thermal block assemblies.
    Type: Application
    Filed: September 1, 2010
    Publication date: March 10, 2011
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Janusz Wojtowicz, Geoffrey Dahlhoff, Douglas W. Grunewald, Thomas A. Conner