Patents by Inventor Joseph Adam Widjaja

Joseph Adam Widjaja 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: 20250085197
    Abstract: An example system includes a conductive sampling swab and a thermal desorber comprising an induction coil. The thermal desorber defines an opening configured to receive at least a portion of the conductive sampling swab within an internal volume defined by the induction coil, and the thermal desorber is configured to inductively heat the sampling swab to a temperature sufficient to vaporize a sample material disposed on the sampling swab.
    Type: Application
    Filed: September 7, 2023
    Publication date: March 13, 2025
    Inventors: Andrey N. Vilkov, Jack Albert Syage, Joseph Adam Widjaja
  • Publication number: 20250085256
    Abstract: An example ion mobility spectrometry system includes a drift chamber, an ion detector, a thermal sensor, and processing circuitry. The drift chamber is configured to receive an ionized sample and an ionized calibrant. The ion detector is configured to generate a drift signal in response to detecting drifted ions at a predetermined position along the drift chamber. The thermal sensor is configured to generate a temperature signal indicative of a temperature of the drift chamber. The processing circuitry is configured to determine, based on the temperature signal, a mobility relation for a target species; determine, based on the drift signal, calibrant and sample drift times; determine, based on the mobility relation and the calibrant drift time, a target drift time; and detect the target species in the ionized sample by comparing the sample drift time with the target drift time.
    Type: Application
    Filed: September 8, 2023
    Publication date: March 13, 2025
    Inventors: Andrey N. Vilkov, Joseph Adam Widjaja, Jack Albert Syage, Brent D. Goldberg
  • Patent number: 12181394
    Abstract: A system includes a conductive sampling swab including a non-mesh substrate and a thermal desorber including a clamping assembly configured to releasably hold the conductive sampling swab. The clamping assembly is configured to be electrically connected to a voltage or current source, and the thermal desorber is configured to resistively heat the conductive sampling swab to a temperature sufficient to vaporize a sample material disposed on the conductive sampling swab.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: December 31, 2024
    Assignee: ANALYTICAL DETECTION LLC
    Inventors: Andrey N Vilkov, Joseph Adam Widjaja, Jack Albert Syage
  • Publication number: 20230069942
    Abstract: A system includes a conductive sampling swab including a non-mesh substrate and a thermal desorber including a clamping assembly configured to releasably hold the conductive sampling swab. The clamping assembly is configured to be electrically connected to a voltage or current source, and the thermal desorber is configured to resistively heat the conductive sampling swab to a temperature sufficient to vaporize a sample material disposed on the conductive sampling swab.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 9, 2023
    Inventors: Andrey N Vilkov, Joseph Adam Widjaja, Jack Albert Syage