Patents by Inventor Philip Kolman

Philip Kolman 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).

  • Method of simultaneously counting blood cells
    Patent number: 4027971
    Abstract: An analytical apparatus includes means for simultaneously counting the quantity of blood cells, either erythrocytes or leucocytes, suspended in a predetermined quantity of fluid comprising a blood fraction as well as for determining the quantity of a chemical constituent in a given blood volume by the use of filter photometry. White light which is directly transmitted through a predetermined volume of such fluid containing the suspended blood cells whose overall quantity is to be simultaneously counted is filtered through a light filter having an optical wavelength selected to substantially minimize any interference from any spurious chemical substances contained within the blood fraction due to absorption of the initial light by the spurous substance while passing light of the selected optical wavelength which has not been absorbed by the blood cells.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: June 7, 1977
    Inventors: Philip Kolman, Maurice J. Dunn, David Tiersten
  • Signal receiver for monitoring an alarm system
    Patent number: D263453
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: March 23, 1982
    Assignee: Varitech Security Systems, Inc.
    Inventors: Menashe Teitelbaum, Philip Kolman