Patents by Inventor David R. Almassian

David R. Almassian 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: 20230404544
    Abstract: A collection device is disclosed having a tubular housing detachably receiving a valved bulb reservoir at a first end thereof, the housing having a second end for dispensing fluids. The valved bulb reservoir has a sample capillary tube attached at one end thereof. The bore of the capillary is fluidically coupled to the valved bulb reservoir. The capillary is removed from the tubular housing to collect a sample in its bore, and is then replaced into the tubular housing. The contents of the valved tubular reservoir, which can be a buffer solution, a reagent, or other analytic fluid, or a gas, are then passed through the capillary bore to expel the sample and mix therewith in the housing. The sample product can then be dispensed from the tubular housing.
    Type: Application
    Filed: August 31, 2023
    Publication date: December 21, 2023
    Applicant: Tetracore, Inc.
    Inventors: William M. Nelson, David R. Almassian, Tracy Calvin Fecteau, Colin Kuserk
  • Patent number: 11779315
    Abstract: A collection device is disclosed having a tubular housing detachably receiving a valved bulb reservoir at a first end thereof, the housing having a second end for dispensing fluids. The valved bulb reservoir has a sample capillary tube attached at one end thereof. The bore of the capillary is fluidically coupled to the valved bulb reservoir. The capillary is removed from the tubular housing to collect a sample in its bore, and is then replaced into the tubular housing. The contents of the valved tubular reservoir, which can be a buffer solution, a reagent, or other analytic fluid, or a gas, are then passed through the capillary bore to expel the sample and mix therewith in the housing. The sample product can then be dispensed from the tubular housing.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: October 10, 2023
    Assignee: Tetracore, Inc.
    Inventors: William M. Nelson, David R. Almassian, Tracy Calvin Fecteau, Colin Kuserk
  • Patent number: 11590433
    Abstract: A method and system for solid phase extraction of a compound of interest from a sample matrix using a syringe having a barrel and a plunger, a sorbent for use with the syringe, and a desalting purification column having an end configured to receive liquid from the syringe body.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: February 28, 2023
    Assignee: Tetracore, Inc.
    Inventors: William M. Nelson, Kyle Armantrout, David R. Almassian, Aymeric Randanne de Vazeille, Tracy Calvin Fecteau, Colin Kuserk
  • Publication number: 20210162356
    Abstract: A magnetic mixing device designed to mix fluid in a reaction chamber and remove air bubbles if present. The device comprises a holder with embedded magnets, which causes movement of a stir bar within the reaction chamber. The holder may be moved by an electric linear actuator configured to generate linear motion or an electric motor configured to generate a circular motion. When orientated so the stir bar moves vertically within the reaction chamber, the stir bar disrupts any air bubbles trapped within or below the fluid.
    Type: Application
    Filed: February 11, 2021
    Publication date: June 3, 2021
    Inventors: David R. Almassian, William M. Nelson, Aymeric Randanne de Vazeille
  • Publication number: 20210162357
    Abstract: A magnetic mixing device designed to mix fluid in a reaction chamber and remove air bubbles if present. The device comprises a holder with embedded magnets, which causes movement of a stir bar within the reaction chamber. The holder may be moved by an electric linear actuator configured to generate linear motion or an electric motor configured to generate a circular motion. When orientated so the stir bar moves vertically within the reaction chamber, the stir bar disrupts any air bubbles trapped within or below the fluid.
    Type: Application
    Filed: February 11, 2021
    Publication date: June 3, 2021
    Inventors: David R. Almassian, William M. Nelson, Aymeric Randanne de Vazeille
  • Publication number: 20210162358
    Abstract: A magnetic mixing device designed to mix fluid in a reaction chamber and remove air bubbles if present. The device comprises a holder with embedded magnets, which causes movement of a stir bar within the reaction chamber. The holder may be moved by an electric linear actuator configured to generate linear motion or an electric motor configured to generate a circular motion. When orientated so the stir bar moves vertically within the reaction chamber, the stir bar disrupts any air bubbles trapped within or below the fluid.
    Type: Application
    Filed: February 11, 2021
    Publication date: June 3, 2021
    Inventors: David R. Almassian, William M. Nelson, Aymeric Randanne de Vazeille
  • Patent number: 10953376
    Abstract: A magnetic mixing device designed to mix fluid in a reaction chamber and remove air bubbles if present. The device comprises a holder with embedded magnets, which causes movement of a stir bar within the reaction chamber. The holder may be moved by an electric linear actuator configured to generate linear motion or an electric motor configured to generate a circular motion. When orientated so the stir bar moves vertically within the reaction chamber, the stir bar disrupts any air bubbles trapped within or below the fluid.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: March 23, 2021
    Assignee: Tetracore, Inc.
    Inventors: David R. Almassian, William M. Nelson, Aymeric Randanne de Vazeille
  • Publication number: 20200094165
    Abstract: A method and system for solid phase extraction of a compound of interest from a sample matrix using a syringe having a barrel and a plunger, a sorbent for use with the syringe, and a desalting purification column having an end configured to receive liquid from the syringe body.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 26, 2020
    Inventors: William M. Nelson, Kyle Armantrout, David R. Almassian, Aymeric Randanne de Vazeille, Tracy Calvin Fecteau, Colin Kuserk
  • Patent number: 10525375
    Abstract: A method and system for solid phase extraction of a compound of interest from a sample matrix using a syringe having a barrel and a plunger, a sorbent for use with the syringe, and a desalting purification column having an end configured to receive liquid from the syringe body.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: January 7, 2020
    Assignee: Tetracore, Inc.
    Inventors: William M. Nelson, Kyle Armantrout, David R. Almassian, Aymeric Randanne de Vazeille, Tracy Calvin Fecteau, Colin Kuserk
  • Publication number: 20180021026
    Abstract: A collection device is disclosed having a tubular housing detachably receiving a valved bulb reservoir at a first end thereof, the housing having a second end for dispensing fluids. The valved bulb reservoir has a sample capillary tube attached at one end thereof. The bore of the capillary is fluidically coupled to the valved bulb reservoir. The capillary is removed from the tubular housing to collect a sample in its bore, and is then replaced into the tubular housing. The contents of the valved tubular reservoir, which can be a buffer solution, a reagent, or other analytic fluid, or a gas, are then passed through the capillary bore to expel the sample and mix therewith in the housing. The sample product can then be dispensed from the tubular housing.
    Type: Application
    Filed: July 20, 2017
    Publication date: January 25, 2018
    Applicant: Tetracore, Inc.
    Inventors: William M. Nelson, David R. Almassian, Tracy Calvin Fecteau, Colin Kuserk
  • Publication number: 20170065946
    Abstract: A magnetic mixing device designed to mix fluid in a reaction chamber and remove air bubbles if present. The device comprises a holder with embedded magnets, which causes movement of a stir bar within the reaction chamber. The holder may be moved by an electric linear actuator configured to generate linear motion or an electric motor configured to generate a circular motion. When orientated so the stir bar moves vertically within the reaction chamber, the stir bar disrupts any air bubbles trapped within or below the fluid.
    Type: Application
    Filed: September 2, 2016
    Publication date: March 9, 2017
    Inventors: David R. Almassian, William M. Nelson, Aymeric Randanne de Vazeille
  • Publication number: 20170044518
    Abstract: A method and system for solid phase extraction of a compound of interest from a sample matrix using a syringe having a barrel and a plunger, a sorbent for use with the syringe, and a desalting purification column having an end configured to receive liquid from the syringe body.
    Type: Application
    Filed: August 12, 2016
    Publication date: February 16, 2017
    Inventors: William M. Nelson, Kyle Armantrout, David R. Almassian, Aymeric Randanne de Vazeille, Tracy Calvin Fecteau, Colin Kuserk
  • Publication number: 20170046480
    Abstract: Methods and apparatus are disclosed detecting the presence or absence of nucleic acid amplification employing classification of the features of a curve representing the DNA amplification reporter signal, and calculating the probability of nucleic acid amplification being present at a predetermined thermal cycle.
    Type: Application
    Filed: August 12, 2016
    Publication date: February 16, 2017
    Inventors: David R. Almassian, Jonathan Yu