Patents by Inventor Brian N. Johnson
Brian N. Johnson 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).
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Publication number: 20250244303Abstract: A method for detecting plant evapotranspiration includes: detecting, by an evapotranspiration (ET) sensor arranged in a canopy of a plant, a speed of air flowing through the canopy of plant, a temperature of the air and a relative humidity of the air over a plurality of time intervals; calculating, by a processor, an estimated mass the air using at least one of a convective mass transfer (CMT) model, a mass balance (MB) model, or an empirical (EM) model; determining, by the processor, a plant scaling coefficient; integrating, by the processor, the estimated mass flux of the air over the plurality of time intervals to obtain a running sum; and multiplying, by the processor, the running sum by the plant scaling coefficient to determine an estimated evapotranspiration of the plant.Type: ApplicationFiled: March 23, 2023Publication date: July 31, 2025Inventors: Mark A. Burns, Wen-Chi Lin, Brian N. Johnson, Zachary D. Pritchard, Matthew Jenkins, David Block, Konrad Miller, Shayla Nikzad, Autumn Mannsfeld
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Publication number: 20240248056Abstract: A multi-functional sensor assembly includes an electrically non-conductive substrate defining at least a distal region, intermediary region, and proximal region that are each covered with electrically conductive traces. The proximal region is configured to be exposed to a media to be sensed and the distal and intermediary regions are configured to be protected from the media. The electrically conductive traces comprise at least electrical circuits to sense temperature and flow of the media and one or more electrodes to sense one or more of conductivity, oxidation reduction potential (ORP), and acidity (pH) of the media.Type: ApplicationFiled: March 7, 2024Publication date: July 25, 2024Inventors: Klaus Brondum, Mark Andrew Burns, Wen-Chi Lin, Michael McCague, Stephen Michael Stec, Brian N. Johnson, Garry Marty
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Patent number: 11953459Abstract: A multi-functional sensor assembly includes an electrically non-conductive substrate defining at least a distal region, intermediary region, and proximal region that are each covered with electrically conductive traces. The proximal region is configured to be exposed to a media to be sensed and the distal and intermediary regions are configured to be protected from the media. The electrically conductive traces comprise at least electrical circuits to sense temperature and flow of the media and one or more electrodes to sense one or more of conductivity, oxidation reduction potential (ORP), and acidity (pH) of the media.Type: GrantFiled: January 22, 2021Date of Patent: April 9, 2024Assignees: MASCO CORPORATION, The Regents of the University of MichiganInventors: Klaus Brondum, Mark Andrew Burns, Wen-Chi Lin, Michael McCague, Stephen Michael Stec, Brian N. Johnson, Garry Marty
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Publication number: 20210140904Abstract: A multi-functional sensor assembly includes an electrically non-conductive substrate defining at least a distal region, intermediary region, and proximal region that are each covered with electrically conductive traces. The proximal region is configured to be exposed to a media to be sensed and the distal and intermediary regions are configured to be protected from the media. The electrically conductive traces comprise at least electrical circuits to sense temperature and flow of the media and one or more electrodes to sense one or more of conductivity, oxidation reduction potential (ORP), and acidity (pH) of the media.Type: ApplicationFiled: January 22, 2021Publication date: May 13, 2021Inventors: Klaus Brondum, Mark Andrew Burns, Wen-Chi Lin, Michael McCague, Stephen Michael Stec, Brian N. Johnson, Garry Marty
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Patent number: 8617905Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.Type: GrantFiled: December 5, 2011Date of Patent: December 31, 2013Assignee: The Regents of the University of MichiganInventors: Mark A. Burns, Brian N. Johnson, Michael Chen
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Patent number: 8573259Abstract: A modular microfluidic system comprising a base substrate, a plurality of microfluidic assembly blocks, and an adhesive component is provided. Each individual microfluidic assembly block defines a channel and has a sidewall defining an aperture into the channel. When the plurality of microfluidic assembly blocks are arranged on the base substrate, the aperture into the channel of one microfluidic assembly block aligns with the aperture of another microfluidic assembly block with the channels thereof connected along a plane parallel to the base substrate thereby forming a channel network defined by the plurality of microfluidic assembly blocks. The subject invention also provides a method of assembling a microfluidic device. The method comprising the steps of providing the base substrate, providing the plurality of microfluidic assembly blocks, and arranging the plurality of microfluidic assembly blocks on the base substrate.Type: GrantFiled: March 25, 2010Date of Patent: November 5, 2013Assignee: The Regents of the University of MichiganInventors: Mark A. Burns, Minsoung Rhee, Sean M. Langelier, Brian N. Johnson
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Publication number: 20120077231Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.Type: ApplicationFiled: December 5, 2011Publication date: March 29, 2012Inventors: Mark A. Burns, Brian N. Johnson, Michael Chen
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Patent number: 8071056Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.Type: GrantFiled: April 29, 2005Date of Patent: December 6, 2011Assignee: The Regents of the University of MichiganInventors: Mark A. Burns, Brian N. Johnson, Michael Chen
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Publication number: 20100258211Abstract: A modular microfluidic system comprising a base substrate, a plurality of microfluidic assembly blocks, and an adhesive component is provided. Each individual microfluidic assembly block defines a channel and has a sidewall defining an aperture into the channel. When the plurality of microfluidic assembly blocks are arranged on the base substrate, the aperture into the channel of one microfluidic assembly block aligns with the aperture of another microfluidic assembly block with the channels thereof connected along a plane parallel to the base substrate thereby forming a channel network defined by the plurality of microfluidic assembly blocks. The subject invention also provides a method of assembling a microfluidic device. The method comprising the steps of providing the base substrate, providing the plurality of microfluidic assembly blocks, and arranging the plurality of microfluidic assembly blocks on the base substrate.Type: ApplicationFiled: March 25, 2010Publication date: October 14, 2010Inventors: Mark A. Burns, Minsoung Rhee, Sean M. Langelier, Brian N. Johnson
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Patent number: 7066453Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.Type: GrantFiled: December 28, 2000Date of Patent: June 27, 2006Assignee: The Regents of the University of MichiganInventors: Mark A. Burns, Carlos H. Mastrangelo, Timothy S. Sammarco, Francis P. Man, James R. Webster, Brian N. Johnson, Bradley Foerster, Darren Jones, Yakeitha Fields, Adam Kaiser, David T. Burke
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Patent number: 6949385Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.Type: GrantFiled: March 2, 2000Date of Patent: September 27, 2005Assignee: The Regents of the University of MichiganInventors: Mark A. Burns, Brian N. Johnson, Michael Chen
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Publication number: 20020172969Abstract: Disclosed are methods and compositions for isothermal amplification of nucleic acids in a microfabricated substrate. Methods and compositions for the analysis of isothermally amplified nucleic acids in a microfabricated substrate are disclosed as well. The microfabricated substrates and isothermal amplification and detection methods provided are envisioned for use in various diagnostic methods, particularly those connected with diseases characterized by altered gene sequences or gene expression.Type: ApplicationFiled: April 1, 2002Publication date: November 21, 2002Applicant: The Regents of the University of MichiganInventors: Mark A. Burns, David T. Burke, Brian N. Johnson, John D. DeNuzzio, Wayne F. Beyer
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Publication number: 20020168671Abstract: Disclosed are methods and compositions for isothermal amplification of nucleic acids in a microfabricated substrate. Methods and compositions for the analysis of isothermally amplified nucleic acids in a microfabricated substrate are disclosed as well. The microfabricated substrates and isothermal amplification and detection methods provided are envisioned for use in various diagnostic methods, particularly those connected with diseases characterized by altered gene sequences or gene expression.Type: ApplicationFiled: April 1, 2002Publication date: November 14, 2002Applicant: The Regents of the University of MichiganInventors: Mark A. Burns, David T. Burke, Brian N. Johnson, John D. DeNuzzio, Wayne F. Beyer
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Patent number: 6379929Abstract: Disclosed are methods and compositions for isothermal amplification of nucleic acids in a microfabricated substrate. Methods and compositions for the analysis of isothermally amplified nucleic acids in a microfabricated substrate are disclosed as well. The microfabricated substrates and isothermal amplification and detection methods provided are envisioned for use in various diagnostic methods, particularly those connected with diseases characterized by altered gene sequences or gene expression.Type: GrantFiled: November 19, 1997Date of Patent: April 30, 2002Assignee: The Regents of the University of MichiganInventors: Mark A. Burns, David T. Burke, Brian N. Johnson, John D. DeNuzzio, Wayne F. Beyer, Jr.
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Publication number: 20010046703Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.Type: ApplicationFiled: December 28, 2000Publication date: November 29, 2001Applicant: The Regents Of The University Of MichiganInventors: Mark A. Burns, Carlos H. Mastrangelo, Timothy S. Sammarco, Francis P. Man, James R. Webster, Brian N. Johnson, Bradley Foerster, Darren Jones, Yakeitha Fields, Adam Kaiser, David T. Burke
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Patent number: 6271021Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.Type: GrantFiled: March 18, 1999Date of Patent: August 7, 2001Assignee: The Regents of The University of MichiganInventors: Mark A. Burns, Carlos H. Mastrangelo, Timothy S. Sammarco, Francis P. Man, James R. Webster, Brian N. Johnson, Bradley Foerster, Darren Jones
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Patent number: 6057149Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.Type: GrantFiled: September 15, 1995Date of Patent: May 2, 2000Assignee: The University of MichiganInventors: Mark A. Burns, Carlos H. Mastrangelo, Timothy S. Sammarco, Francis P. Man, James R. Webster, Brian N. Johnson, Bradley Foerster, Darren Jones, Yakeitha Fields, Adam Kaiser, David T. Burke
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Patent number: 6048734Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, including microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.Type: GrantFiled: July 3, 1997Date of Patent: April 11, 2000Assignee: The Regents of the University of MichiganInventors: Mark A. Burns, Brian N. Johnson, Michael Chen