Patents by Inventor John W. Simpson
John W. Simpson 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: 20240102909Abstract: A method includes projecting light to obtain a reference measurement using a first photoresistor; collecting dust on a platform during a collection time interval; and projecting light across the platform to obtain a dust measurement using the first photoresistor or a second photoresistor.Type: ApplicationFiled: September 28, 2023Publication date: March 28, 2024Inventors: Robert W. Baxter, Derrick J. Hinkle, Ralph E. Bard, John N. Simpson
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Patent number: 11943876Abstract: Pre-connected analyte sensors are provided. A pre-connected analyte sensor includes a sensor carrier attached to an analyte sensor. The sensor carrier includes a substrate configured for mechanical coupling of the sensor to testing, calibration, or wearable equipment. The sensor carrier also includes conductive contacts for electrically coupling sensor electrodes to the testing, calibration, or wearable equipment.Type: GrantFiled: October 23, 2018Date of Patent: March 26, 2024Assignee: DexCom, Inc.Inventors: Jason Halac, John Charles Barry, Becky L. Clark, Chris W. Dring, John Michael Gray, Kris Elliot Higley, Jeff Jackson, David A. Keller, Ted Tang Lee, Jason Mitchell, Kenneth Pirondini, David Rego, Ryan Everett Schoonmaker, Peter C. Simpson, Craig Thomas Gadd, Kyle Thomas Stewart, John Stanley Hayes
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Publication number: 20210212617Abstract: A device and method yielding a blood analysis employable in combination with an introducer for a catheter for a concurrent testing of blood from the introducer flash chamber during placement of a venous catheter. The device employs a colorimetric blood analysis to provide the user a visually discernable alert to the results of tested blood concurrent with the placement of the catheter with the introducer.Type: ApplicationFiled: March 29, 2021Publication date: July 15, 2021Inventors: Chad Garrett, John W. SIMPSON
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Patent number: 10959655Abstract: A device and method yielding a blood analysis employable in combination with an introducer for a catheter for a concurrent testing of blood from the introducer flash chamber during placement of a venous catheter. The device employs a colorimetric blood analysis to provide the user a visually discernable alert to the results of tested blood concurrent with the placement of the catheter with the introducer.Type: GrantFiled: December 3, 2018Date of Patent: March 30, 2021Assignee: Kurin, Inc.Inventors: Chad Garrett, John W. Simpson
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Publication number: 20190192061Abstract: A device and method yielding a blood analysis employable in combination with an introducer for a catheter for a concurrent testing of blood from the introducer flash chamber during placement of a venous catheter. The device employs a colorimetric blood analysis to provide the user a visually discernable alert to the results of tested blood concurrent with the placement of the catheter with the introducer.Type: ApplicationFiled: December 3, 2018Publication date: June 27, 2019Inventors: Chad Garrett, John W. Simpson
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Patent number: 10143413Abstract: A device and method yielding a blood analysis employable in combination with an introducer for a catheter for a concurrent testing of blood from the introducer flash chamber during placement of a venous catheter. The device employs a colorimetric blood analysis to provide the user a visually discernable alert to the results of tested blood concurrent with the placement of the catheter with the introducer.Type: GrantFiled: October 16, 2014Date of Patent: December 4, 2018Assignee: KURIN, INC.Inventors: Chad Garrett, John W. Simpson
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Publication number: 20150359473Abstract: A device and method yielding a blood analysis employable in combination with an introducer for a catheter for a concurrent testing of blood from the introducer flash chamber during placement of a venous catheter. The device employs a colorimetric blood analysis to provide the user a visually discernable alert to the results of tested blood concurrent with the placement of the catheter with the introducer.Type: ApplicationFiled: October 16, 2014Publication date: December 17, 2015Inventors: Chad Garrett, John W. Simpson
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Patent number: 8717012Abstract: An eddy current probe includes an excitation coil for coupling to a low-frequency alternating current (AC) source. A magnetoresistive sensor is centrally disposed within and at one end of the excitation coil to thereby define a sensing end of the probe. A tubular flux-focusing lens is disposed between the excitation coil and the magnetoresistive sensor. An excitation wire is spaced apart from the magnetoresistive sensor in a plane that is perpendicular to the sensor's axis of sensitivity and such that, when the sensing end of the eddy current probe is positioned adjacent to the surface of a structure, the excitation wire is disposed between the magnetoresistive sensor and the surface of the structure. The excitation wire is coupled to a high-frequency AC source. The excitation coil and flux-focusing lens can be omitted when only surface inspection is required.Type: GrantFiled: April 27, 2012Date of Patent: May 6, 2014Assignee: The United States of America as respresented by the United States National Aeronautics and Space AdministrationInventors: Russell A. Wincheski, John W. Simpson
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Publication number: 20120274319Abstract: An eddy current probe includes an excitation coil for coupling to a low-frequency alternating current (AC) source. A magnetoresistive sensor is centrally disposed within and at one end of the excitation coil to thereby define a sensing end of the probe. A tubular flux-focusing lens is disposed between the excitation coil and the magnetoresistive sensor. An excitation wire is spaced apart from the magnetoresistive sensor in a plane that is perpendicular to the sensor's axis of sensitivity and such that, when the sensing end of the eddy current probe is positioned adjacent to the surface of a structure, the excitation wire is disposed between the magnetoresistive sensor and the surface of the structure. The excitation wire is coupled to a high-frequency AC source. The excitation coil and flux-focusing lens can be omitted when only surface inspection is required.Type: ApplicationFiled: April 27, 2012Publication date: November 1, 2012Applicant: U.S.A. as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Russell A. Wincheski, John W. Simpson
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Patent number: 8164328Abstract: An eddy current system and method enables detection of sub-surface damage in a cylindrical object. The invention incorporates a dual frequency, orthogonally wound eddy current probe mounted on a stepper motor-controlled scanning system. The system is designed to inspect for outer surface damage from the interior of the cylindrical object.Type: GrantFiled: June 29, 2009Date of Patent: April 24, 2012Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Russell A. Wincheski, John W. Simpson
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Publication number: 20100079157Abstract: An eddy current system and method enables detection of sub-surface damage in a cylindrical object. The invention incorporates a dual frequency, orthogonally wound eddy current probe mounted on a stepper motor-controlled scanning system. The system is designed to inspect for outer surface damage from the interior of the cylindrical object.Type: ApplicationFiled: June 29, 2009Publication date: April 1, 2010Applicants: Space AdministrationInventors: Russell A. Wincheski, John W. Simpson
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Patent number: 7575865Abstract: An apparatus and method for performing rapid DNA sequencing, such as genomic sequencing, is provided herein. The method includes the steps of preparing a sample DNA for genomic sequencing, amplifying the prepared DNA in a representative manner, and performing multiple sequencing reaction on the amplified DNA with only one primer hybridization step.Type: GrantFiled: August 1, 2005Date of Patent: August 18, 2009Assignee: 454 Life Sciences CorporationInventors: John H. Leamon, Keith E. McDade, Joseph M. Fierro, James R. Knight, Jaran Charumilind, Eugene W. Myers, Jr., John W. Simpson, Greg A. Volkmer
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Patent number: 7335762Abstract: Disclosed herein are methods and apparatuses for sequencing a nucleic acid. These methods permit a very large number of independent sequencing reactions to be arrayed in parallel, permitting simultaneous sequencing of a very large number (>10,000) of different oligonucleotides.Type: GrantFiled: August 15, 2002Date of Patent: February 26, 2008Assignee: 454 Life Sciences CorporationInventors: Jonathan M. Rothberg, Joel S. Bader, Scott B. Dewell, Keith McDade, John W. Simpson, Jan Berka, Christopher M. Colangelo, Michael P. Weiner
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Patent number: 7264929Abstract: Disclosed herein are methods and apparatuses for sequencing a nucleic acid. These methods permit a very large number of independent sequencing reactions to be arrayed in parallel, permitting simultaneous sequencing of a very large number (>10,000) of different oligonucleotides.Type: GrantFiled: November 19, 2002Date of Patent: September 4, 2007Assignee: 454 Life Sciences CorporationInventors: Jonathan M. Rothberg, Joel S. Bader, Scott B. Dewell, Keith McDade, John W. Simpson, Jan Berka, Christopher M. Colangelo
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Patent number: 7244559Abstract: Disclosed herein are methods and apparatuses for sequencing a nucleic acid. These methods permit a very large number of independent sequencing reactions to be arrayed in parallel, permitting simultaneous sequencing of a very large number (>10,000) of different oligonucleotides.Type: GrantFiled: March 21, 2001Date of Patent: July 17, 2007Assignee: 454 Life Sciences CorporationInventors: Jonathan M. Rothberg, Joel S. Bader, Scott B. Dewell, Keith McDade, John W. Simpson, Jan Berka, Christopher M. Colangelo
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Patent number: 7211390Abstract: Disclosed herein are methods and apparatuses for sequencing a nucleic acid. In one aspect, the method includes annealing a population of circular nucleic acid molecules to a plurality of anchor primers linked to a solid support, and amplifying those members of the population of circular nucleic acid molecules which anneal to the target nucleic acid, and then sequencing the amplified molecules by detecting the presence of a sequence byproduct such as pyrophosphate.Type: GrantFiled: February 26, 2004Date of Patent: May 1, 2007Assignee: 454 Life Sciences CorporationInventors: Jonathan M. Rothberg, Joel S. Bader, Scott B. Dewell, Keith McDade, John W. Simpson, Jan Berka, Christopher M. Colangelo
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Patent number: 6888346Abstract: A giant magnetoresistive flux focusing eddy current device effectively detects deep flaws in thick multilayer conductive materials. The probe uses an excitation coil to induce eddy currents in conducting material perpendicularly oriented to the coil's longitudinal axis. A giant magnetoresistive (GMR) sensor, surrounded by the excitation coil, is used to detect generated fields. Between the excitation coil and GMR sensor is a highly permeable flux focusing lens which magnetically separates the GMR sensor and excitation coil and produces high flux density at the outer edge of the GMR sensor. The use of feedback inside the flux focusing lens enables complete cancellation of the leakage fields at the GMR sensor location and biasing of the GMR sensor to a location of high magnetic field sensitivity. In an alternate embodiment, a permanent magnet is positioned adjacent to the GMR sensor to accomplish the biasing.Type: GrantFiled: November 28, 2001Date of Patent: May 3, 2005Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Russell A. Wincheski, Min Namkung, John W. Simpson
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Publication number: 20040248161Abstract: Disclosed herein are methods and apparatuses for sequencing a nucleic acid. In one aspect, the method includes annealing a population of circular nucleic acid molecules to a plurality of anchor primers linked to a solid support, and amplifying those members of the population of circular nucleic acid molecules which anneal to the target nucleic acid, and then sequencing the amplified molecules by detecting the presence of a sequence byproduct such as pyrophosphate.Type: ApplicationFiled: February 26, 2004Publication date: December 9, 2004Inventors: Jonathan M. Rothberg, Joel S. Bader, Scott B. Dewell, Keith McDade, John W. Simpson, Jan Berka, Christopher M. Colangelo
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Patent number: 6673577Abstract: The present invention discloses a methodology which is directed to providing positive confirmation that nucleic acids, possessing putatively identified sequences predicted to generate observed GeneCalling™ signals, are actually present within the sample from which the signal was originally derived. The putatively identified nucleic acid fragment within the sample possesses 3′- and 5′-ends with known terminal subsequences. The method involves contacting nucleic acid fragments in a sample in amplifying conditions with (i) a nucleic acid polymerase; (ii) “regular” primer oligonucleotides having sequences comprising hybridizable portions of known terminal subsequences; and (iii) a “poisoning” oligonucleotide primer. Nucleic acids amplified with a poisoning primer are distinguishable upon detection from nucleic acids amplified with regular primers.Type: GrantFiled: November 14, 2000Date of Patent: January 6, 2004Assignee: CuraGen CorporationInventors: Jonathan M. Rothberg, Michael W. Deem, John W. Simpson
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Publication number: 20030148344Abstract: Disclosed herein are methods and apparatuses for sequencing a nucleic acid. These methods permit a very large number of independent sequencing reactions to be arrayed in parallel, permitting simultaneous sequencing of a very large number (>10,000) of different oligonucleotides.Type: ApplicationFiled: November 19, 2002Publication date: August 7, 2003Inventors: Jonathan M. Rothberg, Joel S. Bader, Scott B. Dewell, Keith McDade, John W. Simpson, Jan Berka, Christopher M. Colangelo