Patents by Inventor Eric R. Crosson
Eric R. Crosson 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: 11835449Abstract: Apparatuses, methods, and systems for generating signatures based on sensing one or more gas concentration conditions are disclosed. One method includes sensing, by one or more sensors, levels of a gas over time for a plurality of gas concentration conditions, receiving, by a controller, the sensed levels of gas over time for the plurality of gas concentration conditions, and generating, by the controller, a plurality of signatures, wherein one or more signatures is generated for one or more gas concentration conditions based on the sensed levels of gas over time, and determining whether to take action or not to take action.Type: GrantFiled: April 30, 2021Date of Patent: December 5, 2023Assignee: Sparrow Detect Inc.Inventors: Eric R. Crosson, David A. Fisher
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Patent number: 11828705Abstract: Apparatuses, methods, and systems for detecting a sample are disclosed. One method includes generating, by a tunable light source, a beam of electro-magnetic radiation, wherein a wavelength of the beam of electro-magnetic radiation is tuned to operate at a plurality of wavelengths. At least a portion of the beam of electro-magnetic radiation is directed to pass through the sample and a reference substance. The system detector is configured to sense at least the portion of the beam of electro-magnetic radiation after passing through the sample and the reference substance. The processor operates to receive information related to intensity or amplitude of the sensed beam of electro-magnetic radiation after passing through the sample and the reference substance and detect an amount of the sample based on the received information related to the intensity or amplitude of the sensed beam of the electro-magnetic radiation.Type: GrantFiled: March 31, 2022Date of Patent: November 28, 2023Assignee: Sparrow Detect, Inc.Inventors: Eric R. Crosson, David A. Fisher
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Publication number: 20230314318Abstract: Apparatuses, methods, and systems for detecting a sample are disclosed. One method includes generating, by a tunable light source, a beam of electro-magnetic radiation, wherein a wavelength of the beam of electro-magnetic radiation is tuned to operate at a plurality of wavelengths. At least a portion of the beam of electro-magnetic radiation is directed to pass through the sample and a reference substance. The system detector is configured to sense at least the portion of the beam of electro-magnetic radiation after passing through the sample and the reference substance. The processor operates to receive information related to intensity or amplitude of the sensed beam of electro-magnetic radiation after passing through the sample and the reference substance and detect an amount of the sample based on the received information related to the intensity or amplitude of the sensed beam of the electro-magnetic radiation.Type: ApplicationFiled: March 31, 2022Publication date: October 5, 2023Applicant: Sparrow Detect, Inc.Inventors: Eric R. Crosson, David A. Fisher
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Patent number: 11561149Abstract: Improved gas leak detection from moving platforms is provided. Automatic horizontal spatial scale analysis can be performed in order to distinguish a leak from background levels of the measured gas. Source identification can be provided by using isotopic ratios and/or chemical tracers to distinguish gas leaks from other sources of the measured gas. Multi-point measurements combined with spatial analysis of the multi-point measurement results can provide leak source distance estimates. These methods can be practiced individually or in any combination.Type: GrantFiled: November 16, 2018Date of Patent: January 24, 2023Assignee: Picarro, Inc.Inventors: Chris W. Rella, Eric R. Crosson, Michael R. Woelk, Sze Meng Tan
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Publication number: 20210247299Abstract: Apparatuses, methods, and systems for generating signatures based on sensing one or more gas concentration conditions are disclosed. One method includes sensing, by one or more sensors, levels of a gas over time for a plurality of gas concentration conditions, receiving, by a controller, the sensed levels of gas over time for the plurality of gas concentration conditions, and generating, by the controller, a plurality of signatures, wherein one or more signatures is generated for one or more gas concentration conditions based on the sensed levels of gas over time, and determining whether to take action or not to take action.Type: ApplicationFiled: April 30, 2021Publication date: August 12, 2021Applicant: Sparrow Detect, Inc.Inventors: Eric R. Crosson, David A. Fisher
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Patent number: 11022544Abstract: Apparatuses, methods, and systems for generating signatures based on sensing one or more gas concentration conditions are disclosed. One method includes sensing, by one or more sensors, levels of a gas over time for a plurality of gas concentration conditions, receiving, by a controller, the sensed levels of gas over time for the plurality of gas concentration conditions, and generating, by the controller, a plurality of signatures, wherein one or more signatures is generated for one or more gas concentration conditions based on the sensed levels of gas over time, and determining whether to take action or not to take action.Type: GrantFiled: March 20, 2020Date of Patent: June 1, 2021Assignee: Sparrow Detect, Inc.Inventors: Eric R. Crosson, David A. Fisher
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Patent number: 10976248Abstract: Apparatuses, methods, and systems for detecting a substance are disclosed. One system includes a light source, an optical cavity, a cavity detector, and a processor. The light source generates a beam of electro-magnetic radiation, wherein a wavelength of the beam of electro-magnetic radiation is tuned to operate at multiple wavelengths. The optical cavity receives the beam of electro-magnetic radiation, wherein the physical characteristics of the cavity define a plurality of allowed axial-plus-transverse electro-magnetic radiation modes, wherein only a subset of the allowed axial-plus-transverse electro-magnetic radiation modes are excited when the optical cavity receives the beam of electro-magnetic radiation. The cavity detector senses electro-magnetic radiation emanating from the optical cavity.Type: GrantFiled: June 22, 2020Date of Patent: April 13, 2021Assignee: Sparrow Detect, Inc.Inventors: Eric R. Crosson, David A. Fisher
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Patent number: 10877007Abstract: This work provides event selection in the context of gas leak pinpointing using mobile gas concentration and atmospheric measurements. The main idea of the present approach is to use a moving minimum to estimate background gas concentration, as opposed to the conventional use of a moving average for this background estimation.Type: GrantFiled: July 8, 2014Date of Patent: December 29, 2020Assignee: Picarro, Inc.Inventors: David Steele, Eric R. Crosson, Sze Meng Tan
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Publication number: 20200319101Abstract: Apparatuses, methods, and systems for detecting a substance are disclosed. One system includes a light source, an optical cavity, a cavity detector, and a processor. The light source generates a beam of electro-magnetic radiation, wherein a wavelength of the beam of electro-magnetic radiation is tuned to operate at multiple wavelengths. The optical cavity receives the beam of electro-magnetic radiation, wherein the physical characteristics of the cavity define a plurality of allowed axial-plus-transverse electro-magnetic radiation modes, wherein only a subset of the allowed axial-plus-transverse electro-magnetic radiation modes are excited when the optical cavity receives the beam of electro-magnetic radiation. The cavity detector senses electro-magnetic radiation emanating from the optical cavity.Type: ApplicationFiled: June 22, 2020Publication date: October 8, 2020Applicant: Sparrow Detect, Inc.Inventors: Eric R. Crosson, David A. Fisher
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Patent number: 10775262Abstract: In some embodiments, a computer system generates display content indicating a likely direction and estimated distance to a potential gas leak source. The content includes a street map and at least one search area indicator on the map that indicates a search area suspected to have a gas leak source. The search area indicator has an axis indicating a representative wind direction relative to a geo-referenced location of at least one gas concentration measurement point. The search area indicator also has a width relative to the axis. The width is indicative of a wind direction variability associated with a plurality of wind direction measurements in an area of the gas concentration measurement point. The axis also preferably has a length indicating an estimated maximum distance to the potential gas leak source.Type: GrantFiled: June 24, 2019Date of Patent: September 15, 2020Assignee: Picarro Inc.Inventors: Sze M. Tan, Eric R. Crosson, Chris W. Rella
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Patent number: 10724946Abstract: Apparatuses, methods, and systems for detecting a substance are disclosed. One system includes a light source, an optical cavity, a cavity detector, and a processor. The light source generates a beam of electro-magnetic radiation, wherein a wavelength of the beam of electro-magnetic radiation is tuned to operate at multiple wavelengths. The optical cavity receives the beam of electro-magnetic radiation, wherein the physical characteristics of the cavity define a plurality of allowed axial-plus-transverse electro-magnetic radiation modes, wherein only a subset of the allowed axial-plus-transverse electro-magnetic radiation modes are excited when the optical cavity receives the beam of electro-magnetic radiation. The cavity detector senses electro-magnetic radiation emanating from the optical cavity.Type: GrantFiled: March 1, 2018Date of Patent: July 28, 2020Assignee: Sparrow Detect, Inc.Inventors: Eric R. Crosson, David A. Fisher
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Publication number: 20200217787Abstract: Apparatuses, methods, and systems for generating signatures based on sensing one or more gas concentration conditions are disclosed. One method includes sensing, by one or more sensors, levels of a gas over time for a plurality of gas concentration conditions, receiving, by a controller, the sensed levels of gas over time for the plurality of gas concentration conditions, and generating, by the controller, a plurality of signatures, wherein one or more signatures is generated for one or more gas concentration conditions based on the sensed levels of gas over time, and determining whether to take action or not to take action.Type: ApplicationFiled: March 20, 2020Publication date: July 9, 2020Applicant: Sparrow Detect, Inc.Inventors: Eric R. Crosson, David A. Fisher
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Patent number: 10337946Abstract: In some embodiments, a computer system generates display content indicating a likely direction and estimated distance to a potential gas leak source. The content includes a street map and at least one search area indicator on the map that indicates a search area suspected to have a gas leak source. The search area indicator has an axis indicating a representative wind direction relative to a geo-referenced location of at least one gas concentration measurement point. The search area indicator also has a width relative to the axis. The width is indicative of a wind direction variability associated with a plurality of wind direction measurements in an area of the gas concentration measurement point. The axis also preferably has a length indicating an estimated maximum distance to the potential gas leak source.Type: GrantFiled: January 27, 2017Date of Patent: July 2, 2019Assignee: Picarro Inc.Inventors: Sze M. Tan, Eric R. Crosson, Chris W. Rella
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Publication number: 20190086329Abstract: Apparatuses, methods, and systems for detecting a substance are disclosed. One system includes a light source, an optical cavity, a cavity detector, and a processor. The light source generates a beam of electro-magnetic radiation, wherein a wavelength of the beam of electro-magnetic radiation is tuned to operate at multiple wavelengths. The optical cavity receives the beam of electro-magnetic radiation, wherein the physical characteristics of the cavity define a plurality of allowed axial-plus-transverse electro-magnetic radiation modes, wherein only a subset of the allowed axial-plus-transverse electro-magnetic radiation modes are excited when the optical cavity receives the beam of electro-magnetic radiation. The cavity detector senses electro-magnetic radiation emanating from the optical cavity.Type: ApplicationFiled: March 1, 2018Publication date: March 21, 2019Applicant: Sparrow Detect, Inc.Inventors: Eric R. Crosson, David A. Fisher
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Publication number: 20190086287Abstract: Improved gas leak detection from moving platforms is provided. Automatic horizontal spatial scale analysis can be performed in order to distinguish a leak from background levels of the measured gas. Source identification can be provided by using isotopic ratios and/or chemical tracers to distinguish gas leaks from other sources of the measured gas. Multi-point measurements combined with spatial analysis of the multi-point measurement results can provide leak source distance estimates. These methods can be practiced individually or in any combination.Type: ApplicationFiled: November 16, 2018Publication date: March 21, 2019Inventors: Chris W. Rella, Eric R. Crosson, Michael R. Woelk, Sze Meng Tan
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Patent number: 10161825Abstract: Improved gas leak detection from moving platforms is provided. Automatic horizontal spatial scale analysis can be performed in order to distinguish a leak from background levels of the measured gas. Source identification can be provided by using isotopic ratios and/or chemical tracers to distinguish gas leaks from other sources of the measured gas. Multi-point measurements combined with spatial analysis of the multi-point measurement results can provide leak source distance estimates. These methods can be practiced individually or in any combination.Type: GrantFiled: March 19, 2017Date of Patent: December 25, 2018Assignee: Picarro, Inc.Inventors: Chris W. Rella, Eric R. Crosson, Michael R. Woelk, Sze Meng Tan
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Patent number: 10113997Abstract: Improved gas leak detection from moving platforms is provided. Automatic horizontal spatial scale analysis can be performed in order to distinguish a leak from background levels of the measured gas. Source identification can be provided by using two or more tracer measurements of isotopic ratios and/or chemical tracers to distinguish gas leaks from other sources of the measured gas. Multi-point measurements combined with spatial analysis of the multi-point measurement results can provide leak source distance estimates. Qualitative source identification is provided. These methods can be practiced individually or in any combination.Type: GrantFiled: April 1, 2016Date of Patent: October 30, 2018Assignee: Picarro, Inc.Inventors: Chris W. Rella, Eric R. Crosson, Michael R. Woelk, Sze Meng Tan, Yonggang He, David Steele
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Patent number: 9739758Abstract: Improved gas leak detection from moving platforms is provided. Automatic horizontal spatial scale analysis can be performed in order to distinguish a leak from background levels of the measured gas. Source identification can be provided by using isotopic ratios and/or chemical tracers to distinguish gas leaks from other sources of the measured gas. Multi-point measurements combined with spatial analysis of the multi-point measurement results can provide leak source distance estimates. Qualitative source identification is provided. These methods can be practiced individually or in any combination.Type: GrantFiled: September 23, 2014Date of Patent: August 22, 2017Assignee: Picarro, Inc.Inventors: Chris W. Rella, Eric R. Crosson, Michael R. Woelk, Sze Meng Tan, Yonggang He, David Steele
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Patent number: 9719879Abstract: In some embodiments, at least one processor determines a range of search directions to a suspected gas leak source by receiving data representative of a plurality of wind direction measurements relative to a geo-referenced location of at least one gas concentration measurement point. The range of search directions extending from the location of the gas concentration measurement point is calculated according to a variability of the wind direction measurements.Type: GrantFiled: January 3, 2013Date of Patent: August 1, 2017Assignee: Picarro, Inc.Inventors: Sze Meng Tan, Eric R. Crosson, Chris W. Rella
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Methods for gas leak detection and localization in populated areas using isotope ratiol measurements
Publication number: 20170191898Abstract: Improved gas leak detection from moving platforms is provided. Automatic horizontal spatial scale analysis can be performed in order to distinguish a leak from background levels of the measured gas. Source identification can be provided by using isotopic ratios and/or chemical tracers to distinguish gas leaks from other sources of the measured gas. Multi-point measurements combined with spatial analysis of the multi-point measurement results can provide leak source distance estimates. These methods can be practiced individually or in any combination.Type: ApplicationFiled: March 19, 2017Publication date: July 6, 2017Inventors: Chris W. Rella, Eric R. Crosson, Michael R. Woelk, Sze Meng Tan