Patents by Inventor Robert John Filkins
Robert John Filkins 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: 20240051029Abstract: An additive manufacturing machine and an energy beam system including an energy beam generator configured to output an energy beam through a first optical element along a first direction is provided. The energy beam system includes an optical translation system positioned to receive the energy beam through a steering optic. The steering optic is positioned within a translator apparatus. The translator apparatus is configured to translate the steering optic along a plane perpendicular to the first direction.Type: ApplicationFiled: August 15, 2022Publication date: February 15, 2024Inventors: Robert John Filkins, Thomas Charles Adcock
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Publication number: 20240017327Abstract: Additive manufacturing methods and systems are disclosed including irradiation devices for an additive manufacturing machine for additively manufacturing three-dimensional objects. The irradiation device includes a beam generation device configured to provide an energy beam travelling on a nominal beam path trajectory and an optical modulator comprising a reflective optic downstream from the beam generating device, wherein the optical modulator is configured to actuate the reflective optic to modify a position of the energy beam from the nominal beam path trajectory. The irradiation device further includes an optical scanner disposed downstream from the optical modulator, wherein the optical scanner is configured to translate the nominal beam path trajectory along a build plane of the additive manufacturing machine.Type: ApplicationFiled: July 17, 2023Publication date: January 18, 2024Inventors: Christopher Darby Immer, Robert John Filkins, Victor Petrovich Ostroverkhov, Younkoo Jeong, Thomas Charles Adcock, Christopher J. Klapper
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Publication number: 20240017482Abstract: Methods of additively manufacturing a three-dimensional object include irradiating a first build plane region using a first energy beam, irradiating a second build plane region using a second energy beam, and irradiating an interlace region between the first build plane region and the second build plane region. Irradiating the interlace region comprises directing the first energy beam along a first oscillating path and directing the second energy beam along a second oscillating path intersecting and overlapping with the first oscillating path.Type: ApplicationFiled: July 15, 2022Publication date: January 18, 2024Inventors: Christopher Darby Immer, Robert John Filkins, Victor Petrovich Ostroverkhov, Michael Robert Tucker
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Publication number: 20230305196Abstract: A system includes a first group of optic lenses within a focusing unit positioned along the propagation direction of a collimated laser beam, the first group of optic lenses separated by a predetermined fixed distance. The first group of optic lenses in conjunction cause the collimated beam to form as an annular beam as it passes through the first group of optic lenses. An axicon lens located distal from the first group of optic lenses along the propagation direction, the axicon lens operable to bifurcate the annular beam into two deflected collimated beam sections, and the axicon lens having a focus that causes the two deflected collimated beam sections to merge at a distance distal from the axicon lens to create an interference pattern region.Type: ApplicationFiled: May 22, 2023Publication date: September 28, 2023Inventors: Robert John Filkins, Subhrajit Roychowdhury, Juan Borja, Thomas Adcock
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Patent number: 11686889Abstract: A system includes a first group of optic lenses within a focusing unit positioned along the propagation direction of a collimated laser beam, the first group of optic lenses separated by a predetermined fixed distance. The first group of optic lenses in conjunction cause the collimated beam to form as an annular beam as it passes through the first group of optic lenses. An axicon lens located distal from the first group of optic lenses along the propagation direction, the axicon lens operable to bifurcate the annular beam into two deflected collimated beam sections, and the axicon lens having a focus that causes the two deflected collimated beam sections to merge at a distance distal from the axicon lens to create an interference pattern region.Type: GrantFiled: February 28, 2019Date of Patent: June 27, 2023Assignee: General Electric CompanyInventors: Robert John Filkins, Subhrajit Roychowdhury, Juan Borja, Thomas Adcock
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Patent number: 10821551Abstract: An additive manufacturing system includes a laser device, a build plate, and a scanning device. The laser device is configured to generate a laser beam with a variable intensity. The build plate is configured to support a powdered build material. The scanning device is configured to selectively direct the laser beam across the powdered build material to generate a melt pool on the build plate. The scanning device is configured to oscillate a spatial position of the laser beam while the laser device simultaneously modulates the intensity of the laser beam to facilitate reducing spatter and to facilitate reducing a temperature of the melt pool to reduce overheating of the melt pool.Type: GrantFiled: January 26, 2018Date of Patent: November 3, 2020Assignee: General Electronic CompanyInventors: Subhrajit Roychowdhury, Matthias Hoebel, Michael Evans Graham, Robert John Filkins, Felix Martin Gerhard Roerig, Donnell Eugene Crear, Prabhjot Singh
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Patent number: 10814429Abstract: An additive manufacturing system includes a laser device, a build plate, and a scanning device. The laser device is configured to generate a laser beam with a variable intensity. The build plate is configured to support a powdered build material. The scanning device is configured to selectively direct the laser beam across the powdered build material to generate a melt pool on the build plate. The scanning device is configured to oscillate a spatial position of the laser beam while the laser device is configured to simultaneously modulate the intensity of the laser beam to thermally control the melt pool.Type: GrantFiled: January 26, 2018Date of Patent: October 27, 2020Assignee: General Electric CompanyInventors: Subhrajit Roychowdhury, Matthias Hoebel, Lang Yuan, Prabhjot Singh, Michael Evans Graham, Robert John Filkins, Thomas Etter, Felix Martin Gerhard Roerig
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Publication number: 20200276667Abstract: A system includes a first group of optic lenses within a focusing unit positioned along the propagation direction of a collimated laser beam, the first group of optic lenses separated by a predetermined fixed distance. The first group of optic lenses in conjunction cause the collimated beam to form as an annular beam as it passes through the first group of optic lenses. An axicon lens located distal from the first group of optic lenses along the propagation direction, the axicon lens operable to bifurcate the annular beam into two deflected collimated beam sections, and the axicon lens having a focus that causes the two deflected collimated beam sections to merge at a distance distal from the axicon lens to create an interference pattern region.Type: ApplicationFiled: February 28, 2019Publication date: September 3, 2020Inventors: Robert John FILKINS, Subhrajit ROYCHOWDHURY, Juan BORJA, Thomas ADCOCK
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Patent number: 10603001Abstract: The present approach generally relates to systems and methods for implementing energy modulated tomographic imaging of nanoparticles. In certain embodiments, a first energy is used to activate probe particles labeling an anatomy or tissue of interest. The probe particles, once activated, emit photons at a different rate and/or spectrum in response to an underlying physiological event, such as action potentials propagating in the labeled anatomy or tissue. The emitted photons may then be detected and used to map or image the occurrence of the physiological event.Type: GrantFiled: July 1, 2015Date of Patent: March 31, 2020Assignee: GENERAL ELECTRIC COMPANYInventors: Robert John Filkins, Ahmad Nadeem Ishaque, Alok Mani Srivastava, Peter William Lorraine, Holly Ann Comanzo, Xiaolei Shi, Vasile Bogdan Neculaes, Sam Joseph Camardello, Gregory Boverman, Ge Wang, Wenxiang Cong
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Publication number: 20190232427Abstract: An additive manufacturing system includes a laser device, a build plate, and a scanning device. The laser device is configured to generate a laser beam with a variable intensity. The build plate is configured to support a powdered build material. The scanning device is configured to selectively direct the laser beam across the powdered build material to generate a melt pool on the build plate. The scanning device is configured to oscillate a spatial position of the laser beam while the laser device simultaneously modulates the intensity of the laser beam to facilitate reducing spatter and to facilitate reducing a temperature of the melt pool to reduce overheating of the melt pool.Type: ApplicationFiled: January 26, 2018Publication date: August 1, 2019Inventors: Subhrajit Roychowdhury, Matthias Hoebel, Michael Evans Graham, Robert John Filkins, Felix Martin Gerhard Roerig, Donnell Eugene Crear, Prabhjot Singh
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Publication number: 20190232428Abstract: An additive manufacturing system includes a laser device, a build plate, and a scanning device. The laser device is configured to generate a laser beam with a variable intensity. The build plate is configured to support a powdered build material. The scanning device is configured to selectively direct the laser beam across the powdered build material to generate a melt pool on the build plate. The scanning device is configured to oscillate a spatial position of the laser beam while the laser device is configured to simultaneously modulate the intensity of the laser beam to thermally control the melt pool.Type: ApplicationFiled: January 26, 2018Publication date: August 1, 2019Inventors: Subhrajit Roychowdhury, Matthias Hoebel, Lang Yuan, Prabhjot Singh, Michael Evans Graham, Robert John Filkins, Thomas Etter, Felix Martin Gerhard Roerig
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Patent number: 10175174Abstract: Methods comprising the use of photoactivated chemical bleaching for detecting multiple targets in a biological sample are provided. The methods include the steps of providing a biological sample including multiple targets, binding at least one probe to one or more target present in the sample, and detecting a signal from the probe. The method further includes the steps of contacting the sample comprising the bound probe with an electron transfer reagent, as well as an optional additive which prevents target modification during photoactivated chemical bleaching, and irradiating the sample, thereby initiating a photoreaction that substantially inactivates the probe by photoactivated chemical bleaching. The method further includes the steps of binding at least one probe to one or more target present in the sample, and detecting a signal from the probe. The process of binding, defecting and bleaching may be iteratively repeated.Type: GrantFiled: December 11, 2013Date of Patent: January 8, 2019Assignee: GE HEALTHCARE BIO-SCIENCES CORP.Inventors: Arunkumar Natarajan, Robert John Filkins, Anup Sood, Lakshmi Sireesha Kaanumalle, Kashan Ali Shaikh, Christina Lowes
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Patent number: 10082451Abstract: The present invention provides a microscope slide for analyzing a tissue sample. The slide includes an elongate planar substrate, which comprises a first major surface having a sample-affixing area within which a tissue sample may be affixed; a first positive control sample affixed on the first major surface at a first location adjacent to the sample-affixing area; and a second positive control sample affixed on the first major surface at a second location adjacent to the sample-affixing area. The first and second locations are spaced such that quality of the staining of the first and second positive control samples is indicative of the quality of the staining of the tissue sample. Also provided are a kit containing the microscope slide and a method of making and a method of using the microscope slide.Type: GrantFiled: March 20, 2014Date of Patent: September 25, 2018Assignee: GE HEALTHCARE BIO-SCIENCES CORP.Inventors: Rui Chen, Zhengyu Pang, Colin Craig McCulloch, Michael Lazare, Robert John Filkins, Fiona Ginty
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Patent number: 9817221Abstract: A method for processing and imaging a first and second plurality of samples, comprising processing at least one sample from the first plurality of samples, imaging the at least one sample from the first plurality of samples, while being capable of simultaneously processing at least one sample from the second plurality of samples; and imaging the at least one processed sample from the second plurality of samples.Type: GrantFiled: June 26, 2013Date of Patent: November 14, 2017Assignee: General Electric CompanyInventors: Alex David Corwin, Robert John Filkins, Jun Xie, Nannan Chen, Kashan Ali Shaikh
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Publication number: 20170000438Abstract: The present approach generally relates to systems and methods for implementing energy modulated tomographic imaging of nanoparticles. In certain embodiments, a first energy is used to activate probe particles labeling an anatomy or tissue of interest. The probe particles, once activated, emit photons at a different rate and/or spectrum in response to an underlying physiological event, such as action potentials propagating in the labeled anatomy or tissue. The emitted photons may then be detected and used to map or image the occurrence of the physiological event.Type: ApplicationFiled: July 1, 2015Publication date: January 5, 2017Inventors: Robert John Filkins, Ahmad Nadeem Ishaque, Alok Mani Srivastava, Peter William Lorraine, Holly Ann Camanzo, Xiaolei Shi, Vasile Bogdan Neculaes, Sam Joseph Camardello, Gregory Boverman, Ge Wang, Wenxiang Cong
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Patent number: 9518982Abstract: Methods for detecting multiple targets in a biological sample are provided. The methods includes contacting the sample with a first probe; physically binding the first probe to a first target; observing a first signal from the first probe; applying a chemical agent to modify the first signal; contacting the sample with a second probe; physically binding the second probe to a second target; and observing a second signal from the second probe. The methods disclosed herein also provide for multiple iterations of binding, observing, signal modification for deriving information about multiple targets in a single sample. An associated kit and device are also provided.Type: GrantFiled: November 3, 2009Date of Patent: December 13, 2016Assignee: GENERAL ELECTRIC COMPANYInventors: Anup Sood, Michael Christopher Montalto, Michael Gerdes, Maximilian Lewis Seel, Robert John Filkins
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Publication number: 20160274008Abstract: The present invention provides a microscope slide for analyzing a tissue sample. The slide includes an elongate planar substrate, which comprises a first major surface having a sample-affixing area within which a tissue sample may be affixed; a first positive control sample affixed on the first major surface at a first location adjacent to the sample-affixing area; and a second positive control sample affixed on the first major surface at a second location adjacent to the sample-affixing area. The first and second locations are spaced such that quality of the staining of the first and second positive control samples is indicative of the quality of the staining of the tissue sample. Also provided are a kit containing the microscope slide and a method of making and a method of using the microscope slide.Type: ApplicationFiled: March 20, 2014Publication date: September 22, 2016Inventors: Rui CHEN, Zhengyu PANG, Colin Craig MCCULLOCH, Michael LAZARE, Robert John FILKINS, Fiona GINTY
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Publication number: 20160041375Abstract: An ultra-compact microscope configured to image at least a portion of a biological sample is provided. The ultra-compact microscope includes an illumination source configured to provide illumination beams to image at least the portion of the biological sample. The ultra-compact microscope further includes an image sensor configured to acquire emitted signals from at least the portion of the biological sample. Moreover, the ultra-compact microscope includes an objective lens operatively coupled to the image sensor and configured to direct emitted signals from the biological sample to the image sensor. Additionally, the ultra-compact microscope includes a micro-motion control assembly operatively coupled to the image sensor and configured to provide dynamic translational motion, dynamic tilting motion, or both to the image sensor at least during scanning of the biological sample.Type: ApplicationFiled: August 7, 2014Publication date: February 11, 2016Inventors: Chun Zhan, Robert John Filkins, Juntao Wu
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Publication number: 20150316482Abstract: Methods comprising the use of photoactivated chemical bleaching for detecting multiple targets in a biological sample are provided. The methods include the steps of providing a biological sample including multiple targets, binding at least one probe to one or more target present in the sample, and detecting a signal from the probe. The method further includes the steps of contacting the sample comprising the bound probe with an electron transfer reagent, as well as an optional additive which prevents target modification during photoactivated chemical bleaching, and irradiating the sample, thereby initiating a photoreaction that substantially inactivates the probe by photoactivated chemical bleaching. The method further includes the steps of binding at least one probe to one or more target present in the sample, and detecting a signal from the probe. The process of binding, defecting and bleaching may be iteratively repeated.Type: ApplicationFiled: December 11, 2013Publication date: November 5, 2015Inventors: Arunkumar Natarajan, Robert John Filkins, Anup Sood, Lakshmi Sireesha Kaanumalle, Kashan Ali Shaikh, Christina Lowes
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Patent number: 9164015Abstract: A method for processing and imaging a first and second plurality of samples, comprising processing at least one sample from the first plurality of samples, imaging the at least one sample from the first plurality of samples, while being capable of simultaneously processing at least one sample from the second plurality of samples; and imaging the at least one processed sample from the second plurality of samples.Type: GrantFiled: June 29, 2012Date of Patent: October 20, 2015Assignee: General Electric CompanyInventors: Alex David Corwin, Robert John Filkins, Jun Xie, Nannan Chen, Kashan Ali Shaikh