Patents by Inventor Stewart Lipton

Stewart Lipton 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).

  • Methods, apparatuses and kits for the growth and/or identification of microorganisms
    Patent number: 5770441
    Abstract: The present invention provides slide system apparatuses, kits and methods for the growth and/or identification of microorganisms, such as fungi. The slide system apparatuses comprise a unitary member containing one or more compartments in which microorganisms may grow, one or more solid support matrices present in each of these compartments, dehydrated media, which may be hydrated with water, present within, or on one or more surfaces of, each of the solid support matrices, a cover sheet lying over the open end of each compartment and secured to the upper surfaces of the unitary member which surround the open end of each compartment, and an optional adhesive layer present on the lower surface of each cover sheet and/or present on the upper surfaces of the unitary member which surround the open end of each compartment.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: June 23, 1998
    Inventor: Stewart Lipton
  • Parasitological preservative for fecal samples
    Patent number: 5607870
    Abstract: This invention provides methods and compositions for the analysis of parasites in fecal samples. A parasitological fixative is provided which contains glyceraldehyde, a salt of an organic acid, organic solvent and water. The parasitological fixative does not contain formaldehyde, formalin or other harmful chemicals commonly associated with fixative compositions. The invention further describes a slide fixative composition comprising a protein solution, glycerin and an adhesion enhancing agent which improves the adhesion of sample components to a microscope slide.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: March 4, 1997
    Inventor: Stewart Lipton
  • Method for fixing fecal samples
    Patent number: 5504012
    Abstract: This invention provides methods and compositions for the analysis of parasites in fecal samples. A parasitological fixative is provided which contains glyceraldehyde, a salt of an organic acid, organic solvent and water. The parasitological fixative does not contain formaldehyde, formalin or other harmful chemicals commonly associated with fixative compositions. The invention further describes a slide fixative composition comprising a protein solution, glycerin and an adhesion enhancing agent which improves the adhesion of sample components to a microscope slide.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: April 2, 1996
    Inventor: Stewart Lipton
  • Method for adhering fecal samples to slides
    Patent number: 5453381
    Abstract: This invention provides methods and compositions for the analysis of parasites in fecal samples. A parasitological fixative is provided which contains glyceraldehyde, a salt of an organic acid, organic solvent and water. The parasitological fixative does not contain formaldehyde, formalin or other harmful chemicals commonly associated with fixative compositions. The invention further describes a slide fixative composition comprising a protein solution, glycerin and an adhesion enhancing agent which improves the adhesion of sample components to a microscope slide.
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: September 26, 1995
    Inventor: Stewart Lipton