Patents by Inventor Sheldon Friedlander

Sheldon Friedlander 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).

  • Method for online measurement of ultrafine aggregate surface area and volume distributions
    Publication number: 20070043520
    Abstract: Method for the online measurement of the number, surface area and volume distribution of nanoparticle aerosol aggregates relates the number and size of primary particles that compose the aggregates and the aggregate mobility diameter. The number distribution of nanoparticle aggregates is obtained by calculations based on the drag on the aggregates and the aggregate charging efficiency. The aggregate surface area and volume are obtained by summing over the surface areas and volume of the primary particles that compose the aggregate. The aggregate surface area and volume distribution is then obtained by multiplying the aggregate surface area, volume and the aggregate number distribution.
    Type: Application
    Filed: July 28, 2006
    Publication date: February 22, 2007
    Inventors: Sheldon Friedlander, Anshuman Lall