Patents by Inventor Anita Rogacs

Anita Rogacs 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).

  • Publication number: 20240182885
    Abstract: Various aspects of the present disclosure are directed toward methods and apparatuses for interacting a first liquid and a second liquid in one or more fluidic channels of a capillary structure. The methods and apparatuses can include providing at least one capillary barrier that positions a meniscus of the first liquid at a fluid-interface region using capillary forces within the capillary structure. Additionally, a path is provided along one of the channels for the second liquid to flow toward the fluid-interface region. Additionally, gas pressure is released, via a gas-outflow port, from the fluid-interface region while flow of the first liquid is arrested. Further, the first liquid and the second liquid contact in the fluid-interface region with the capillary barrier holding the first liquid at the fluid-interface region.
    Type: Application
    Filed: November 8, 2023
    Publication date: June 6, 2024
    Inventors: Juan G. Santiago, Lewis A. Marshall, Anita Rogacs
  • Patent number: 11932844
    Abstract: An example apparatus includes a sampling layer to position microscopic objects thereon, a light encoding layer to encode light from passing through the microscopic objects of the sampling layer, the light encoding layer having a substantially flat form, and an imaging layer to capture an image of the sampling layer, the image being encoded by the light encoding layer.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: March 19, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Fausto D'Apuzzo, Anita Rogacs
  • Patent number: 11851647
    Abstract: Various aspects of the present disclosure are directed toward methods and apparatuses for interacting a first liquid and a second liquid in one or more fluidic channels of a capillary structure. The methods and apparatuses can include providing at least one capillary barrier that positions a meniscus of the first liquid at a fluid-interface region using capillary forces within the capillary structure. Additionally, a path is provided along one of the channels for the second liquid to flow toward the fluid-interface region. Additionally, gas pressure is released, via a gas-outflow port, from the fluid-interface region while flow of the first liquid is arrested. Further, the first liquid and the second liquid contact in the fluid-interface region with the capillary barrier holding the first liquid at the fluid-interface region.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: December 26, 2023
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Juan G Santiago, Lewis A. Marshall, Anita Rogacs
  • Publication number: 20230003723
    Abstract: In one example an apparatus can include a controller communicatively coupled to a droplet dispenser to deposit antibody fluid on a matrix of an immunoblotting array, the controller is to align the droplet dispenser with a protein band included in the matrix, instruct the droplet dispenser to deposit a first antibody fluid on to the protein band of the matrix, and instruct the droplet dispenser to deposit a second antibody fluid on to the protein band of the matrix, adjacent to the first antibody fluid.
    Type: Application
    Filed: January 29, 2020
    Publication date: January 5, 2023
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Anita Rogacs, Fausto D'APUZZO, Erica SQUIRES, Tynan BECKER
  • Patent number: 11441960
    Abstract: A microfluidic pressure sensor may include a reference chamber, a sensed volume, a microfluidic channel connecting an interior of the reference chamber to an interior of the sensed volume, a volume of liquid contained and movable within the microfluidic channel while occluding the microfluidic channel and a sensor to output signals indicating positioning of the volume of liquid along the microfluidic channel. Positioning of the volume of liquid along microfluidic channel indicates a pressure of the sensed volume.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: September 13, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ning Ge, Alexander Govyadinov, Anita Rogacs, Viktor Shkolnikov
  • Publication number: 20220280942
    Abstract: An apparatus of an enzymatic sample purifier can include a reaction chamber containing a polypeptide synthesizing enzyme capable of reacting with a protein degradation product to form polypeptides having a size of at least 1,000 Da and including the protein degradation product, the reaction chamber having a port configured to receive a fluid sample including a target analyte having a size of no greater than 500 Da and the protein degradation product. The apparatus can also include a product chamber, an electrophoretic transport mechanism to move a purified portion of the fluid sample including the target analyte to the product chamber, and a separator positioned to retain the formed polypeptides resulting from reaction of the protein degradation product with the polypeptide synthesizing enzyme in the reaction chamber and to pass the target analyte to the product chamber, wherein the separator comprises a porous matrix.
    Type: Application
    Filed: May 24, 2022
    Publication date: September 8, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Viktor Shkolnikov, Anita ROGACS
  • Patent number: 11402332
    Abstract: A surface enhanced luminescence (SEL) sensor may include a substrate and nano fingers extending from the substrate. In one implementation, the nano fingers may be arranged in a cluster of at least three nano fingers extending from the substrate. The nano fingers of the cluster having different geometries so as to bend into a closed state such that each of the nano fingers of the cluster are linked to one another.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: August 2, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ning Ge, Viktor Shkolnikov, Anita Rogacs, Steven J. Simske
  • Patent number: 11325123
    Abstract: Control of fluid flow in a fluidic network is provided by controlling phase transitions of a phase-change material between a liquid phase and a non-fluid phase. The phase-change material is disposed at ports of the fluidic network where the fluidic network is in communication with an ambient. This advantageously provides control of pressure-driven flow within the fluidic network without altering properties of fluids within the fluidic network.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: May 10, 2022
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Anita Rogacs, Juan G. Santiago
  • Patent number: 11320379
    Abstract: A surface enhanced luminescence (SELS) sensor may include a substrate and nano fingers projecting from the substrate. Each of the nano fingers may include a polymer pillar having a sidewall and a top, a coating layer covering the sidewall and a metal cap supported by and in contact with the top of the pillar.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: May 3, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ning Ge, Milo Overbay, James Abbott, Anita Rogacs, Viktor Shkolnikov
  • Publication number: 20220088595
    Abstract: Integrated microfluidic ejector chips and methods of use are provided. An example of an integrated microfluidic ejector chip includes a first set of microfluidic ejectors fed with a reference solution, and a second set of microfluidic ejectors fed with a sample solution. The first set of microfluidic ejectors and the second set of microfluidic ejectors are disposed on the integrated microfluidic ejector chip to print a pattern of proximately located spots on a sensor.
    Type: Application
    Filed: June 4, 2019
    Publication date: March 24, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Fausto D'Apuzzo, Steven Barcelo, Anita Rogacs
  • Patent number: 11280740
    Abstract: A luminescence-enhancement system can include a luminescence-enhancement sensor having a substrate and a group of nanofingers with individual nanofingers that can be flexible and include a support end attached to the substrate, a distal tip positioned distally with respect to the substrate, and a middle portion between the support end and the distal tip. A coating of a metal or metal alloy can be applied to the substrate and the distal tip that is conductively continuous. The middle portion can be devoid of the coating or the coating at the middle portion is conductively discontinuous. A liquid ejector can be present and can include a jetting nozzle to eject a liquid droplet having a volume of 2 pL to 10 ?L. The group of nanofingers and the jetting nozzle can be positionable relative to one another for the droplet to be deposited on the group of nanofingers.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: March 22, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Steven Barcelo, Anita Rogacs, Raghuvir N. Sengupta
  • Patent number: 11280739
    Abstract: A surface enhanced luminescence system may include a laser and a controller to output control signals causing the laser to irradiate the pre-analyte exposed plasmonic surface while maintaining a profile of the pre-analyte exposed plasmonic surface.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: March 22, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Raghuvir N. Sengupta, Anita Rogacs
  • Publication number: 20220080372
    Abstract: A system and a method for on-chip dilution of a calibration solution are provided. An exemplary system includes a microfluidic ejector chip. The microfluidic ejector chip includes a calibration reservoir to contain a calibration standard and a dilution reservoir to contain a dilution solvent. A first fluid control device couples the calibration reservoir to a mixing chamber, and a second fluid control device couples a dilution reservoir to the mixing chamber. The mixing chamber is fluidically coupled to a microfluidic ejector.
    Type: Application
    Filed: June 4, 2019
    Publication date: March 17, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Steven Barcelo, Fausto D'Apuzzo, Anita Rogacs
  • Publication number: 20220082504
    Abstract: Systems and methods for generating calibration curve for a sensor are provided. An example method includes printing at least two spots of an analyte on the sensor, wherein each of the spots includes a different number of overprinted droplets ejected from a single printhead.
    Type: Application
    Filed: June 4, 2019
    Publication date: March 17, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Fausto D'Apuzzo, Steven Barcelo, Anita Rogacs
  • Patent number: 11255792
    Abstract: A surface enhanced Raman spectroscopy (SERS) sensor may include a nano structured surface and a nonstoichiometric oxide layer. The nano structured surfers may include a first peak, a second peak and a valley between the first peak and the second peak. The non-stoichiometric oxide layer may include a first portion on the first peak and a second portion on the second peak.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: February 22, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ning Ge, Anita Rogacs, Steven J. Simske, Milo Overbay, Viktor Shkolnikov
  • Patent number: 11213791
    Abstract: A microporous structure includes an array of nano wires and a coating about the nano wires of the array. The coating defines pores between the nano wires.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: January 4, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Steven Barcelo, Ning Ge, Anita Rogacs
  • Patent number: 11199499
    Abstract: A surface enhanced luminescence analyte interrogation stage may include a substrate and an array of pillars projecting from the substrate. Each of the pillars may include a polymeric post formed from a first material and a cap on the polymeric post. The cap has a plasmonic surface and is formed from a second material different than the first. A sacrificial coating covers the cap of each of the pillars.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: December 14, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Milo Overbay, Anita Rogacs, Devin A. Mourey
  • Patent number: 11169091
    Abstract: A surfaced enhanced luminescence analyte interrogation stage shipping and storage package may include a sealed chamber, a liquid contained within the sealed chamber and nano pillars within the sealed chamber and submersed within the liquid. The nano pillars comprise polymer posts and metallic caps forming tips of the nano pillars.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: November 9, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Christopher N. Young, Milo Overbay, Anita Rogacs, Raghuvir N. Sengupta
  • Patent number: 11162901
    Abstract: A surface enhanced Raman scattering (SERS) sensor may include a substrate, an electrically conductive layer having a first portion spaced from a second portion by a gap, an electrically resistive layer in contact with and extending between the first portion and the second portion of the electrically conductive layer to form an electrically resistive bridge across the gap that heats the nano fingers in response to electrical current flowing across the bridge from the first portion to the second portion and nano fingers extending upward from the bridge.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: November 2, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ning Ge, Anita Rogacs, Viktor Shkolnikov, Alexander Govyadinov
  • Patent number: 11144576
    Abstract: A method may include sensing first data samples from a first set of different subjects having a membership in a target class and sensing second data samples from a second set of different subjects not having a membership in the target class, wherein each of the first data samples and the second data samples includes a composite of individual data features. The individual data features from each composite of the first data samples and the second data samples are extracted and quantified. Sets of features and associated weightings of a target class model are identified based upon quantified values of the individual features from each composite of the first samples and the second samples to create a model representing a fingerprint of the target class to determine membership status of a sample having an unknown membership status with respect to the target class.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: October 12, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Lei Liu, Anita Rogacs