Patents by Inventor Dmitry Kozak

Dmitry Kozak 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: 11692982
    Abstract: Presented herein is a new concept of uniformly spin coating a flat surface with a stationary phase and creating a gas chromatography column by pressing a grooved lid, with micro-stamped ridges, down onto the coated substrate. The lids are molded out of commercially available rigid materials including epoxies so that when pressed onto a flat surface it will create an air tight seal. The epoxy material is rendered inert by a thin layer of gold.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: July 4, 2023
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Robert Furstenberg, Christopher Breshike, Todd H. Stievater, Dmitry Kozak, R. Andrew McGill
  • Patent number: 11073421
    Abstract: Optical detectors and methods of forming them are provided. The detector includes: a controller, pump and probe laser generators that generate modulated pump laser and probe lasers, respectively, a microring cavity that receives the lasers, a microbridge, and a photodetector. The microring cavity includes covered and exposed portions. The microbridge is suspended above the exposed portion and interacts with an evanescent optical field. The wavelength and modulated power of the pump laser are controlled to generate the evanescent optical field that excites the microbridge to resonance. The microbridge absorbs optical radiation which changes the resonance frequency proportionately. The probe laser is modulated in proportion to a vibration amplitude of the microbridge to form a modulated probe laser which is provided to the photodetector.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: July 27, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Marcel Pruessner, Doewon Park, Todd Stievater, Dmitry Kozak, William Rabinovich
  • Publication number: 20200355652
    Abstract: Presented herein is a new concept of uniformly spin coating a flat surface with a stationary phase and creating a gas chromatography column by pressing a grooved lid, with micro-stamped ridges, down onto the coated substrate. The lids are molded out of commercially available rigid materials including epoxies so that when pressed onto a flat surface it will create an air tight seal. The epoxy material is rendered inert by a thin layer of gold.
    Type: Application
    Filed: May 8, 2020
    Publication date: November 12, 2020
    Inventors: Robert Furstenberg, Christopher Breshike, Todd H. Stievater, Dmitry Kozak, R. Andrew McGill
  • Publication number: 20200049549
    Abstract: Optical detectors and methods of forming them are provided. The detector includes: a controller, pump and probe laser generators that generate modulated pump laser and probe lasers, respectively, a microring cavity that receives the lasers, a microbridge, and a photodetector. The microring cavity includes covered and exposed portions. The microbridge is suspended above the exposed portion and interacts with an evanescent optical field. The wavelength and modulated power of the pump laser are controlled to generate the evanescent optical field that excites the microbridge to resonance. The microbridge absorbs optical radiation which changes the resonance frequency proportionately. The probe laser is modulated in proportion to a vibration amplitude of the microbridge to form a modulated probe laser which is provided to the photodetector.
    Type: Application
    Filed: August 9, 2019
    Publication date: February 13, 2020
    Inventors: Marcel Pruessner, Doewon Park, Todd Stievater, Dmitry Kozak, William Rabinovich