Patents by Inventor Boris P. Golubkov

Boris P. Golubkov 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).

  • Instrument for marking out the central optical zone of the cornea
    Patent number: 4357941
    Abstract: An instrument for making out the central optical zone of the cornea having an oblong body featuring the edge of one of its ends sharpened, while the diameter of the body across said end equals a preset diameter of the central optical zone, and a sight is accommodated inside the body square with the longitudinal axis thereof, the sighting point of said sight lying on the longitudinal axis of the oblong body of the instrument.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: November 9, 1982
    Inventors: Boris P. Golubkov, Svyatoslav N. Fedorov, Valery V. Durnev, deceased, by Tamara S. Durneva, administratrix