Patents by Inventor Vincent J. Greczanik

Vincent J. Greczanik 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).

  • Sample deposition device and method
    Patent number: 5683915
    Abstract: The present invention is a sample deposition device for depositing a plurality of samples onto a test media substrate, and a method of depositing a plurality of samples onto a planar test media substrate, such as a stationary phase chromatographic medium, agar or tissue. In broadest terms, the device of the present invention comprises (a) a substantially planar support portion defining a plane; and (b) an array of substantially planar absorbent portions releasably connected to the support portion, the absorbent portions aligned substantially parallel to said plane. The absorbent portions may be impregnated with a test sample before use. The present invention also includes a method of depositing one or more samples onto a test media substrate.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: November 4, 1997
    Assignee: Isolab, Inc.
    Inventors: Jeffrey A. Black, Vincent J. Greczanik, Michael E. Jackson
  • Sample deposition device
    Patent number: 5681437
    Abstract: The present invention is a sample deposition device for depositing a plurality of samples onto a test media substrate, and a method of depositing a plurality of samples onto a planar test media substrate, such as a stationary phase chromatographic medium, agar or tissue. In broadest terms, the device of the present invention comprises (a) a substantially planar support portion defining a plane; and (b) an array of substantially planar absorbent portions permanently connected to the support portion, the absorbent portions aligned substantially parallel to said plane. The absorbent portions may be impregnated with a test sample before use. The present invention also includes a method of depositing one or more samples onto a test media substrate.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: October 28, 1997
    Assignee: Isolab, Inc.
    Inventors: Jeffrey A. Black, Vincent J. Greczanik, Michael E. Jackson
  • Absorbent paper for liquid sampling and impregnated paper calibrators and controls
    Patent number: 5516487
    Abstract: The present invention is an absorbent paper piece having a plurality of samples zones adapted to receive a liquid sample. The paper comprises an absorbent paper piece having a plurality of sample zones, each sample zone having a perforation extending substantially around its perimeter, so as to substantially obstruct the capillary flow of the liquid sample from one of the sample zones having an there sample zone adjacent thereto, to the other sample zone. It is preferred that the absorbent paper piece be provided with barrier perforations interposed between adjacent sample zones, so as to provide a gap between the sample zones as an additional capillary flow barrier. The absorbent paper piece may be adapted to hold any desired sample in liquid form such as laboratory reagents, and biological samples, such as blood samples (here used to include blood, products or components of blood, and blood hemolysate).
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: May 14, 1996
    Assignee: Isolab, Inc.
    Inventors: Murray A. Rosenthal, Vincent J. Greczanik, Ronald A. Simkins