Patents by Inventor Andrei Vitalievich Chernyshev

Andrei Vitalievich Chernyshev 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 and device for determination of parameters of individual microparticles
    Patent number: 5650847
    Abstract: A method and device for determination of absolute values of the size and the refractive index of individual microparticles. An optical scanning device for measurement of angular scattering pattern from individual microparticles is described. The light scatter is measured in different angles from moving particles inside the scanning optical system and the values and the angular locations of minima and maxima of the scattering pattern are registered. The size and the refractive index of individual microparticles are calculated from the registered minima and maxima using an empirical equation. An empirical equation has been derived from statistical analysis of angular scattering patterns. These patterns have been calculated on the basis of Mie scattering theory.
    Type: Grant
    Filed: June 14, 1995
    Date of Patent: July 22, 1997
    Assignee: Erkki SOINI
    Inventors: Valeri Pavlovich Maltsev, Andrei Vitalievich Chernyshev