Patents by Inventor Viet K. Nguyen
Viet K. Nguyen 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: 11465179Abstract: This application relates generally to a method and apparatus to deposit particles onto one or more coupons, and harvest particles from one or more coupons, which may beneficially provide a more uniform or localized distribution of particles over a specified area on each coupon. The application relates to a method and apparatus for depositing particles onto one or more coupons using a sieve. The application also relates to a method and apparatus for depositing particles onto one or more coupons using a dust storm. The particle loadings achieved on each coupon or across an individual coupon may be substantially uniform. The application further relates to a laser-based method and apparatus for transferring particles deposited at localized points on a source coupon to a different substrate for further use.Type: GrantFiled: July 17, 2019Date of Patent: October 11, 2022Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Robert Furstenberg, Thomas Fischer, Viet K. Nguyen, R. Andrew McGill, Chris Kendziora, Michael Papantonakis
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Publication number: 20190360900Abstract: This application relates generally to a method and apparatus to deposit particles onto one or more coupons, and harvest particles from one or more coupons, which may beneficially provide a more uniform or localized distribution of particles over a specified area on each coupon. The application relates to a method and apparatus for depositing particles onto one or more coupons using a sieve. The application also relates to a method and apparatus for depositing particles onto one or more coupons using a dust storm. The particle loadings achieved on each coupon or across an individual coupon may be substantially uniform. The application further relates to a laser-based method and apparatus for transferring particles deposited at localized points on a source coupon to a different substrate for further use.Type: ApplicationFiled: July 17, 2019Publication date: November 28, 2019Inventors: Robert Furstenberg, Thomas Fischer, Viet K. Nguyen, R. Andrew McGill, Chris Kendziora, Michael Papantonakis
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Patent number: 10416049Abstract: This application relates generally to a method and apparatus to deposit particles onto one or more coupons, and harvest particles from one or more coupons, which may beneficially provide a more uniform or localized distribution of particles over a specified area on each coupon. The application relates to a method and apparatus for depositing particles onto one or more coupons using a sieve. The application also relates to a method and apparatus for depositing particles onto one or more coupons using a dust storm. The particle loadings achieved on each coupon or across an individual coupon may be substantially uniform. The application further relates to a laser-based method and apparatus for transferring particles deposited at localized points on a source coupon to a different substrate for further use.Type: GrantFiled: April 5, 2017Date of Patent: September 17, 2019Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Robert Furstenberg, Thomas Fischer, Viet K. Nguyen, R Andrew McGill, Chris Kendziora, Michael Papantonakis
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Patent number: 10302601Abstract: A chemical detector for rapid, simultaneous detection of multiple chemicals including chemical warfare agents, toxic industrial chemicals, and explosives having one or more gas chromatography columns each with a chemosorbent or a chemo-reactive stationary phase and an infrared-transparent base, a bright infrared light source, a mechanism to direct the light source to any point along any of the columns, and an infrared sensor. Another disclosed detector has one or more gas chromatography columns each on the surface of a substrate having at least one infrared-transparent waveguide pattern, a bright infrared light source, and at least one ring resonator for each column, where each ring resonator is coated with a chemosorbent or a chemo-reactive stationary phase, and where each ring resonator spectroscopically probes the stationary phase. Also disclosed are the related methods for chemical detection.Type: GrantFiled: March 21, 2017Date of Patent: May 28, 2019Assignee: The United States of America, as represented by the Secretary of the NavyInventors: R. Andrew McGill, Robert Furstenberg, Viet K. Nguyen, Chris Kendziora, Michael Papantonakis, Todd H. Stievater
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Publication number: 20180066989Abstract: A non-destructive method for chemical imaging with ˜1 nm to 10 ?m spatial resolution (depending on the type of heat source) without sample preparation and in a non-contact manner. In one embodiment, a sample undergoes photo-thermal heating using an IR laser and the resulting increase in thermal emissions is measured with either an IR detector or a laser probe having a visible laser reflected from the sample. In another embodiment, the infrared laser is replaced with a focused electron or ion source while the thermal emission is collected in the same manner as with the infrared heating. The achievable spatial resolution of this embodiment is in the 1-50 nm range.Type: ApplicationFiled: November 8, 2017Publication date: March 8, 2018Inventors: Robert Furstenberg, Chris Kendziora, R. Andrew McGill, Viet K. Nguyen
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Patent number: 9841324Abstract: A non-destructive method for chemical imaging with ˜1 nm to 10 ?m spatial resolution (depending on the type of heat source) without sample preparation and in a non-contact manner. In one embodiment, a sample undergoes photo-thermal heating using an IR laser and the resulting increase in thermal emissions is measured with either an IR detector or a laser probe having a visible laser reflected from the sample. In another embodiment, the infrared laser is replaced with a focused electron or ion source while the thermal emission is collected in the same manner as with the infrared heating. The achievable spatial resolution of this embodiment is in the 1-50 nm range.Type: GrantFiled: June 24, 2015Date of Patent: December 12, 2017Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Robert Furstenberg, Chris Kendziora, R. Andrew McGill, Viet K. Nguyen
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Publication number: 20170284928Abstract: This application relates generally to a method and apparatus to deposit particles onto one or more coupons, and harvest particles from one or more coupons, which may beneficially provide a more uniform or localized distribution of particles over a specified area on each coupon. The application relates to a method and apparatus for depositing particles onto one or more coupons using a sieve. The application also relates to a method and apparatus for depositing particles onto one or more coupons using a dust storm. The particle loadings achieved on each coupon or across an individual coupon may be substantially uniform. The application further relates to a laser-based method and apparatus for transferring particles deposited at localized points on a source coupon to a different substrate for further use.Type: ApplicationFiled: April 5, 2017Publication date: October 5, 2017Inventors: Robert Furstenberg, Thomas Fischer, Viet K. Nguyen, R Andrew McGill, Chris Kendziora, Michael Papantonakis
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Publication number: 20170284976Abstract: A chemical detector for rapid, simultaneous detection of multiple chemicals including chemical warfare agents, toxic industrial chemicals, and explosives having one or more gas chromatography columns each with a chemosorbent or a chemo-reactive stationary phase and an infrared-transparent base, a bright infrared light source, a mechanism to direct the light source to any point along any of the columns, and an infrared sensor. Another disclosed detector has one or more gas chromatography columns each on the surface of a substrate having at least one infrared-transparent waveguide pattern, a bright infrared light source, and at least one ring resonator for each column, where each ring resonator is coated with a chemosorbent or a chemo-reactive stationary phase, and where each ring resonator spectroscopically probes the stationary phase. Also disclosed are the related methods for chemical detection.Type: ApplicationFiled: March 21, 2017Publication date: October 5, 2017Inventors: R. Andrew McGill, Robert Furstenberg, Viet K. Nguyen, Chris Kendziora, Michael Papantonakis, Todd H. Stievater
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Patent number: 9599567Abstract: A chemical detector for rapid, simultaneous detection of multiple chemicals including chemical warfare agents, toxic industrial chemicals, and explosives having one or more gas chromatography columns each with a chemosorbent or a chemo-reactive stationary phase and an infrared-transparent base, a bright infrared light source, a mechanism to direct the light source to any point along any of the columns, and an infrared sensor. Another disclosed detector has one or more gas chromatography columns each on the surface of a substrate having at least one infrared-transparent waveguide pattern, a bright infrared light source, and at least one ring resonator for each column, where each ring resonator is coated with a chemosorbent or a chemo-reactive stationary phase, and where each ring resonator spectroscopically probes the stationary phase. Also disclosed are the related methods for chemical detection.Type: GrantFiled: March 13, 2014Date of Patent: March 21, 2017Assignee: The United States of America as represented by the Secretary of the NavyInventors: R. Andrew McGill, Robert Furstenberg, Viet K. Nguyen, Chris Kendziora, Michael Papantonakis, Todd H. Stievater
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Publication number: 20160011049Abstract: A non-destructive method for chemical imaging with ˜1 nm to 10 ?m spatial resolution (depending on the type of heat source) without sample preparation and in a non-contact manner. In one embodiment, a sample undergoes photo-thermal heating using an IR laser and the resulting increase in thermal emissions is measured with either an IR detector or a laser probe having a visible laser reflected from the sample. In another embodiment, the infrared laser is replaced with a focused electron or ion source while the thermal emission is collected in the same manner as with the infrared heating. The achievable spatial resolution of this embodiment is in the 1-50 nm range.Type: ApplicationFiled: June 24, 2015Publication date: January 14, 2016Inventors: Robert Furstenberg, Chris Kendziora, Michael Papantonakis, R. Andrew McGill, Viet K. Nguyen, Graham K. Hubler
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Patent number: 9091594Abstract: A non-destructive method for chemical imaging with ˜1 nm to 10 ?m spatial resolution (depending on the type of heat source) without sample preparation and in a non-contact manner. In one embodiment, a sample undergoes photo-thermal heating using an IR laser and the resulting increase in thermal emissions is measured with either an IR detector or a laser probe having a visible laser reflected from the sample. In another embodiment, the infrared laser is replaced with a focused electron or ion source while the thermal emission is collected in the same manner as with the infrared heating. The achievable spatial resolution of this embodiment is in the 1-50 nm range.Type: GrantFiled: November 25, 2012Date of Patent: July 28, 2015Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Robert Furstenberg, Chris Kendziora, Nabil D. Bassim, Robert Andrew McGill, Viet K. Nguyen
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Publication number: 20140260535Abstract: A chemical detector for rapid, simultaneous detection of multiple chemicals including chemical warfare agents, toxic industrial chemicals, and explosives having one or more gas chromatography columns each with a chemosorbent or a chemo-reactive stationary phase and an infrared-transparent base, a bright infrared light source, a mechanism to direct the light source to any point along any of the columns, and an infrared sensor. Another disclosed detector has one or more gas chromatography columns each on the surface of a substrate having at least one infrared-transparent waveguide pattern, a bright infrared light source, and at least one ring resonator for each column, where each ring resonator is coated with a chemosorbent or a chemo-reactive stationary phase, and where each ring resonator spectroscopically probes the stationary phase. Also disclosed are the related methods for chemical detection.Type: ApplicationFiled: March 13, 2014Publication date: September 18, 2014Inventors: R. Andrew McGill, Robert Furstenberg, Viet K. Nguyen, Chris Kendziora, Michael Papantonakis, Todd H. Stievater
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Publication number: 20130134310Abstract: A non-destructive method for chemical imaging with ˜1 nm to 10 ?m spatial resolution (depending on the type of heat source) without sample preparation and in a non-contact manner. In one embodiment, a sample undergoes photo-thermal heating using an IR laser and the resulting increase in thermal emissions is measured with either an IR detector or a laser probe having a visible laser reflected from the sample. In another embodiment, the infrared laser is replaced with a focused electron or ion source while the thermal emission is collected in the same manner as with the infrared heating. The achievable spatial resolution of this embodiment is in the 1-50 nm range.Type: ApplicationFiled: November 25, 2012Publication date: May 30, 2013Inventors: Robert Furstenberg, Chris Kendziora, Nabil D. Bassim, Robert Andrew McGill, Viet K. Nguyen