Patents by Inventor Raissa Andreeva

Raissa Andreeva 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).

  • Process for determining the distillation characteristics of liquid petroleum products by express mini-distillation and apparatus permitting implementation of this process
    Patent number: 6581443
    Abstract: “Process for determining the distillation characteristics of liquid petroleum products by express mini-distillation and apparatus permitting implementation of this process” Apparatus characterized by the fact that it includes: a distillation flask dimensioned to receive 5 to 15 ml of a sample to be analysed, organs for heating the distillation flask, with an adjustable constant heating intensity, two inertialess temperature sensors permitting continuous measurement on the one hand of the true value of the temperature of a sample in the course of distillation in the liquid phase and the true value of the temperature of this sample in the vapor phase, a device for continuous measurement of the pressure in the vapor phase of a sample in the course of distillation which includes a pressure detector and a capillary tube, and organs for reception and exploitation of signals transmitted by the temperature sensors and the pressure detector.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: June 24, 2003
    Assignee: Instrumentation Scientifique de Laboratoire I.S.L. SA
    Inventors: Guenrikh Abaev, Raissa Andreeva, Viachaslau Urvantsau, Aliaksandr Spirydonau, Victor Kalesnik
  • Process for determining the distillation characteristics of liquid petroleum products by express mini-distillation and apparatus permitting implementation of this process
    Publication number: 20030037603
    Abstract: Apparatus characterized by the fact that it includes:
    Type: Application
    Filed: October 17, 2001
    Publication date: February 27, 2003
    Inventors: Guenrikh Abaev, Raissa Andreeva, Viachaslau Urvantsau, Aliaksandr Spirydonau, Victor Kalesnik