Patents by Inventor Mark Firmer Merrick

Mark Firmer Merrick 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).

  • Patent number: 11391706
    Abstract: A chromatography system includes a modulator, a chromatograph, a cooler, and a detector. The chromatograph is connected to the modulator by a first heated transfer line. The detector is connected to the modulator by a second heated transfer line. The cooler is connected to the modulator. The modulator is arranged outside of the chromatograph.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 19, 2022
    Assignee: LECO Corporation
    Inventor: Mark Firmer Merrick
  • Publication number: 20220082535
    Abstract: A multi-dimensional gas chromatograph for analyzing compounds in a sample during a single run is disclosed. The multi-dimensional gas chromatograph includes a first column, a second column, and a modulator disposed between the first column and the second column. The modulator modulates at (i) a first modulation period over a first time period during the run and (ii) a second modulation period over a second time period during the run later than the first time, the second modulation period being different than the first modulation period.
    Type: Application
    Filed: January 17, 2020
    Publication date: March 17, 2022
    Inventors: David Jesse Borton, Jonelle Ley Shiel, Mark Firmer Merrick
  • Publication number: 20210356441
    Abstract: A method for modulating analytes in a gaseous stream passing through a capillary, wherein the analytes are retained in a trapping zone of the capillary, or allowed to pass therethrough, based on certain conditions. The method includes, during a first time period, heating the trapping zone of the capillary to a first temperature to desorb analytes therewithin and allow the analytes to pass therethrough, and during a second time period, cooling the capillary to a second temperature that is sufficient to trap and focus the analytes within the trapping zone. During the first time period, the method also includes retaining heat at the capillary during to minimize the load on a cooling device thermally connected thereto, and during the second time period, selectively allowing thermal transfer toward the cooling device.
    Type: Application
    Filed: July 26, 2021
    Publication date: November 18, 2021
    Applicant: LECO Corporation
    Inventors: Gaetano Stallone, Mark Firmer Merrick
  • Publication number: 20200041466
    Abstract: A chromatography system includes a modulator, a chromatograph, a cooler, and a detector. The chromatograph is connected to the modulator by a first heated transfer line. The detector is connected to the modulator by a second heated transfer line. The cooler is connected to the modulator. The modulator is arranged outside of the chromatograph.
    Type: Application
    Filed: December 13, 2017
    Publication date: February 6, 2020
    Inventor: Mark Firmer Merrick