Patents by Inventor Luisa C. Oramas

Luisa C. Oramas 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).

  • Low formaldehyde producing blood diluent
    Patent number: 6706526
    Abstract: A low formaldehyde containing aqueous blood diluent contains an effective amount of ethylenediamine tetraacetic acid, ethylenediamine tetraacetic acid derivative, or combinations thereof; an effective amount of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one; and an effective amount of 5-bromo-5-nitro-1,3-dioxane. Advantageously, less than about 1 parts per million of formaldehyde is produced in this multipurpose diluent. A method of analyzing a blood sample containing blood cells is conducted by forming a diluted blood sample by mixing a blood sample containing blood cells with this diluent and analyzing the diluted blood sample to determine a physical parameter of the blood cells.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: March 16, 2004
    Assignee: Coulter International Corp.
    Inventors: Russell F. Lang, Iris L. Payan, Barbara G. Murza, Luisa C. Oramas
  • Low formaldehyde producing blood diluent
    Publication number: 20030166290
    Abstract: A low formaldehyde containing aqueous blood diluent contains an effective amount of ethylenediamine tetraacetic acid, ethylenediamine tetraacetic acid derivative, or combinations thereof; an effective amount of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one; and an effective amount of 5-bromo-5-nitro-1,3-dioxane. Advantageously, less than about 1 parts per million of formaldehyde is produced in this multipurpose diluent. A method of analyzing a blood sample containing blood cells is conducted by forming a diluted blood sample by mixing a blood sample containing blood cells with this diluent and analyzing the diluted blood sample to determine a physical parameter of the blood cells.
    Type: Application
    Filed: January 24, 2002
    Publication date: September 4, 2003
    Inventors: Russell F. Lang, Iris L. Payan, Barbara G. Murza, Luisa C. Oramas