Patents by Inventor Raisa P. Demina

Raisa P. Demina 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).

  • Ultrasonic flowmeter
    Patent number: D266153
    Type: Grant
    Filed: August 23, 1979
    Date of Patent: September 14, 1982
    Inventors: Alexandr D. Suslov, Eduard A. Zalessky, Vladimir V. Smyshlyaev, Klavdia N. Alexandrova, Raisa P. Demina