Patents by Inventor Modi Chen

Modi Chen 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: 11085861
    Abstract: An impactor, system and method for performing real-time measurements of particles in aerosol gases. The impactor comprises a plurality of cascading stages having impaction plates, mass-measurement mechanisms retained on the impaction plates, and a nozzle plate. A signal line associated with each of the plurality of cascading stages is configured to relay signals from the mass-measurement mechanism of the associated stage to a computer-based system configured to receive the transmitted signals from the signal lines, and to correlate changes in the resonant frequencies to particle concentrations in real time.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: August 10, 2021
    Assignee: MSP CORPORATION
    Inventors: Modi Chen, Lin Li, Virgil Alan Marple, Amir A. Naqwi, Francisco J. Romay, Daryl L. Roberts, Benjamin Y. H. Liu