Patents by Inventor Alex Sappok

Alex Sappok 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).

  • Microwave sensing for determination of loading of filters
    Patent number: 7679374
    Abstract: Method for determining loading of a filter. The filter has a first dielectric constant. The filter becomes loaded with contaminant material that has a second dielectric constant. The filter, such as a diesel particulate filter, is contained within a metallic enclosure forming a microwave cavity. The method includes establishing microwave energy in the cavity and monitoring changes in the cavity microwave response, the changes being related to filter loading.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: March 16, 2010
    Assignee: Massachusetts Institute of Technology
    Inventors: Leslie Bromberg, Alex Sappok, Ronald Parker, Peter Koert, Victor Wong
  • MICROWAVE SENSING FOR DETERMINATION OF LOADING OF FILTERS
    Publication number: 20080059093
    Abstract: Method for determining loading of a filter. The filter has a first dielectric constant. The filter becomes loaded with contaminant material that has a second dielectric constant. The filter, such as a diesel particulate filter, is contained within a metallic enclosure forming a microwave cavity. The method includes establishing microwave energy in the cavity and monitoring changes in the cavity microwave response, the changes being related to filter loading.
    Type: Application
    Filed: April 30, 2007
    Publication date: March 6, 2008
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Leslie Bromberg, Alex Sappok, Ronald Parker, Peter Koert, Victor Wong