Patents by Inventor Vadim L. Borodin

Vadim L. Borodin 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 producing single crystals of optical calcite
    Patent number: 5069744
    Abstract: A process is provided for producing single crystals of optical calcite by a hydrothermal method and comprises heating crystalline calcium carbonate, then crystalline calcium carbonate is recrystallized onto one seed plate arranged vertically in an insertion container and having its side surfaces screened, a temperature difference existing between the zones of location of the calcium carbonate and of the seed plate, ranging within 2 to 4 K.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: December 3, 1991
    Inventors: Vadim L. Borodin, Valery V. Dronov, Valentin E. Khadzhi