Patents by Inventor Lajos Tron

Lajos Tron 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 the rapid determination of sperm cell count and/or living sperm count
    Patent number: 4880732
    Abstract: The invention relates to a process and an equipment for the rapid determination of the spermium count of sperm samples and/or the ratio of the living spermia. The process comprises dissolving the fluorescent dyestuff propidium iodide in a buffer and measuring the intensity (F.sub.o), then adding the sperm sample and, after measurement of the intensity (F.sub.1) and addition of a cytoplasm membrane-permeabilizing agent, determining the intensity (F.sub.2), then adding a buffer and a permeabilizing agnet to the buffer and measuring the intensity (F.sub.3) and subsequently the intensity (F.sub.4) of the pure buffer and finally the intensity (F.sub.5) of the sperm mixture added to the buffer, and calculating the cell concentration by using the formula: ##EQU1## wherein .alpha.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: November 14, 1989
    Assignee: Innofinance Altalanos Innovacios Penzintezet
    Inventors: Istvan Resli, Tibor Takacs, Sandor Damjanovich, Rezso Gaspar, Lajos Tron, Janos Szollosi, Janos Matko