Patents by Inventor John C. Ho
John C. Ho 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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Patent number: 12001038Abstract: The disclosed patterned wavelength-selective material and process for making the patterned wavelength-selective material uses patterned applied adhesive and a structurally weak wavelength-selective material that includes portions that contact the adhesive and break to remain in contact with the adhesive. In one embodiment, the wavelength-selective material comprises an array of sections with cuts at least partially through a wavelength-selective film at each section secured to the adhesive. In another embodiment, the wavelength-selective film comprises a transfer stack of layers.Type: GrantFiled: July 23, 2019Date of Patent: June 4, 2024Assignee: 3M Innovative Properties CompanyInventors: Kui Chen-Ho, Douglas S. Dunn, Tien Yi T. H. Whiting, Bryan T. Whiting, Taylor J. Kobe, Anthony F. Schultz, Duane D. Fansler, Jonah Shaver, John A. Wheatley, Susannah C. Clear, Daniel J. Theis, John T. Strand, Thomas J. Metzler, Kevin W. Gotrik, Scott J. Jones
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Publication number: 20230034379Abstract: A device for monitoring a bioreactor is configured for in-situ analysis, e.g., by NIR, without the need for withdrawing a sample into a sample cell or into an ex-situ arrangement. The device can be inserted into a port of the bioreactor and provides a sample detection region defined by an optical element such as a lens and a photodetector. The electrical signal obtained from a photodetector that is part of the device can be directed to an analyzer via a detachable electrical connection.Type: ApplicationFiled: October 13, 2022Publication date: February 2, 2023Applicant: Nirrin Technologies, Inc.Inventors: Bryan A. Hassell, David P. Marchessault, Christopher R. Saulnier, John C. Ho, Walid A. Atia
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Patent number: 11499903Abstract: A device for monitoring a bioreactor is configured for in-situ analysis, e.g., by NIR, without the need for withdrawing a sample into a sample cell or into an ex-situ arrangement. The device can be inserted into a port of the bioreactor and provides a sample detection region defined by an optical element such as a lens and a photodetector. The electrical signal obtained from a photodetector that is part of the device can be directed to an analyzer via a detachable electrical connection.Type: GrantFiled: September 23, 2020Date of Patent: November 15, 2022Assignee: NIRRIN TECHNOLOGIES, INC.Inventors: Bryan A. Hassell, David P. Marchessault, Christopher R. Saulnier, John C. Ho, Walid A. Atia
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Publication number: 20210088433Abstract: A device for monitoring a bioreactor is configured for in-situ analysis, e.g., by NIR, without the need for withdrawing a sample into a sample cell or into an ex-situ arrangement. The device can be inserted into a port of the bioreactor and provides a sample detection region defined by an optical element such as a lens and a photodetector. The electrical signal obtained from a photodetector that is part of the device can be directed to an analyzer via a detachable electrical connection.Type: ApplicationFiled: September 23, 2020Publication date: March 25, 2021Inventors: Bryan A. Hassell, David P. Marchessault, Christopher R. Saulnier, John C. Ho, Walid A. Atia
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Publication number: 20210062133Abstract: A device for monitoring a bioreactor includes a sample tube for withdrawing a sample from a bioreactor into a sample cell and elements for analyzing the sample, in the NIR region, for example. Collecting and releasing the sample from and into the bioreactor is conducted using a peristaltic pump that is operated as a reversible/reciprocating pump. A sterile filter separates sample cell tubing from tubing connecting to the peristaltic pump.Type: ApplicationFiled: August 28, 2020Publication date: March 4, 2021Inventors: Bryan A. Hassell, David P. Marchessault, Christopher R. Saulnier, John C. Ho
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Publication number: 20190358632Abstract: A culture medium of a micro-physiological (MP) system is analyzed by near infrared (NIR) absorption spectroscopy. The MP system can be microfluidic or a well-plate MP system. Spectra are obtained in real time and are analyzed to provide information such as, for example, the concentration of one or more analytes as a function of time.Type: ApplicationFiled: May 22, 2019Publication date: November 28, 2019Inventors: Bryan A. Hassell, John C. Ho
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Patent number: 10345602Abstract: An immersive headset device is provided that includes a display portion and a body portion. The display portion may include microdisplays having a compact size. The microdisplays may be movable (e.g., rotational) relative to the body portion and can be moved (e.g., rotated) between a flipped-up position and a flipped-down position. In some instances, when the microdisplays are flipped up, the headset provides an augmented reality (AR) mode to a user, and when the microdisplays are flipped down, the headset provide a virtual reality (VR) mode to the user. In certain implementations, the headset includes an electronics source module to provide power and/or signal to the microdisplays. The electronics source module can be attached to a rear of the body portion in order to provide advantageous weight distribution about the head of the user.Type: GrantFiled: July 11, 2017Date of Patent: July 9, 2019Assignee: Sun Pharmaceutical Industries LimitedInventors: Jerome T. Carollo, Amal Ghosh, John C. Ho, Andrew T. Rosen
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Publication number: 20180024370Abstract: An immersive headset device is provided that includes a display portion and a body portion. The display portion may include microdisplays having a compact size. The microdisplays may be movable (e.g., rotational) relative to the body portion and can be moved (e.g., rotated) between a flipped-up position and a flipped-down position. In some instances, when the microdisplays are flipped up, the headset provides an augmented reality (AR) mode to a user, and when the microdisplays are flipped down, the headset provide a virtual reality (VR) mode to the user. In certain implementations, the headset includes an electronics source module to provide power and/or signal to the microdisplays. The electronics source module can be attached to a rear of the body portion in order to provide advantageous weight distribution about the head of the user.Type: ApplicationFiled: July 11, 2017Publication date: January 25, 2018Inventors: Jerome T. Carollo, Amal Ghosh, John C. Ho, Andrew T. Rosen
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Patent number: 6753737Abstract: A precision oven-controlled crystal oscillator (OCXO) uses an adjustment feedback signal that, when mixed with a reference signal from a stable reference oscillator, accurately controls the generation of an output signal from a voltage controlled crystal oscillator (VCXO). An OCXO according to the invention has high stability and high accuracy. The digital OXCO can be manufactured at low cost, and is particularly beneficial for Code Division Multiple Access (CDMA) base station applications in cellular communication networks an the like.Type: GrantFiled: March 17, 2003Date of Patent: June 22, 2004Assignee: Frequency Electronics, Inc.Inventors: John C. Ho, Charles Stone, Thomas McClelland
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Publication number: 20030174025Abstract: A precision oven-controlled crystal oscillator (OCXO) uses an adjustment feedback signal that, when mixed with a reference signal from a stable reference oscillator, accurately controls the generation of an output signal from a voltage controlled crystal oscillator (VCXO). An OCXO according to the invention has high stability and high accuracy. The digital OXCO can be manufactured at low cost, and is particularly beneficial for Code Division Multiple Access (CDMA) base station applications in cellular communication networks an the like.Type: ApplicationFiled: March 17, 2003Publication date: September 18, 2003Inventors: John C. Ho, Charles Stone, Thomas McClelland
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Patent number: 6577201Abstract: A precision oven-controlled crystal oscillator (OCXO) uses an adjustment feedback signal that, when mixed with a reference signal from a stable reference oscillator, accurately controls the generation of an output signal from a voltage controlled crystal oscillator (VCXO). An OCXO according to the invention has high stability and high accuracy. The digital OXCO can be manufactured at low cost, and is particularly beneficial for Code Division Multiple Access (CDMA) base station applications in cellular communication networks an the like.Type: GrantFiled: December 17, 2001Date of Patent: June 10, 2003Assignee: Frequency Electronics, Inc.Inventors: John C. Ho, Charles Stone, Thomas McClelland
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Publication number: 20020079976Abstract: A precision oven-controlled crystal oscillator (OCXO) uses an adjustment feedback signal that, when mixed with a reference signal from a stable reference oscillator, accurately controls the generation of an output signal from a voltage controlled crystal oscillator (VCXO). An OCXO according to the invention has high stability and high accuracy. The digital OXCO can be manufactured at low cost, and is particularly beneficial for Code Division Multiple Access (CDMA) base station applications in cellular communication networks an the like.Type: ApplicationFiled: December 17, 2001Publication date: June 27, 2002Inventors: John C. Ho, Charles Stone, Thomas McClelland