Patents by Inventor Marilyn J. Stapleton

Marilyn J. Stapleton 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).

  • Patent number: 6103192
    Abstract: The invention is a method and device for collecting and processing a biological specimen for the analyses of nucleic acids. A device comprises a matrix to which cells and viruses adhere and a handle to manipulate the matrix. The devices are used to collect, dry, transport, store and process small amounts of blood or other tissue. The matrix of the device is transferred to a reaction tube and amplifying reagents added to it. Nucleic acid sequences and relative quantities are detected and analyzed from the same specimen. The relative amounts of amplified nucleic acid from one or more particular RNA sequences are compared to one another and to the amount of amplified nucleic acid from DNA sequences serving as an internal control for the number of biological units per specimen.
    Type: Grant
    Filed: April 14, 1998
    Date of Patent: August 15, 2000
    Assignee: GeneTec Corporation
    Inventors: Marilyn J. Stapleton, Rebecca Sundseth, Ke Wei
  • Patent number: 5451500
    Abstract: A system is provided for the automated detection of target nucleic acid sequences in which multiple biological samples are individually incorporated into matrices within carriers in a two-dimensional format. The matrix carrier is an inexpensive, disposable unit that represents a closed system separating the specimens. The system integrates sample preparation within the matrix and facilitates biochemical reactions, addition of reagents and washes, removal of waste fluids, temperature control and the automated processing thereof. The carriers are processed in stepwise treatments that expose, amplify, and detect the presence or absence of specific genetic entities in each sample. The nucleic acids or other desired biological components held within the matrices are treated by one or more of the techniques such as amplification, electrophoresis, analyte-receptor binding or hybridization as selected for the desired analysis.
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: September 19, 1995
    Assignee: Gene Tec Corporation
    Inventor: Marilyn J. Stapleton
  • Patent number: 5436129
    Abstract: A process for handling a biological specimen for the analysis of nucleic acid sequences wherein the biological specimen is immobilized within a carrier device for controlled temperature conditions and the sequential addition of fluid treatments. The fluid treatments arm selected from lysing end denaturing solutions, wash or rinse solutions, reagents for nucleic acid amplification, electrophoresis and hybridization and labeling and detection reagents. The fluid treatments are unique to each specimen and the detection of target nucleic acid sequences is localized within the carrier device.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: July 25, 1995
    Assignee: Gene Tec Corp.
    Inventor: Marilyn J. Stapleton
  • Patent number: 5382511
    Abstract: An apparatus for the automated detection of target nucleic acid sequences in which multiple biological samples are individually incorporated into a matrix and treated in a stepwise fashion to expose, amplify, detect and enumerate the presence of original, target nucleotide sequences in each sample. The samples are held together with other samples in a chamber connected by means of a fluid flow conduit to which the matrices make connection via numerous jet-spray ports for the injection of various fluids from a plurality of reservoirs used to process the samples. Solvents and reagents are used to degrade and wash cellular structures and contaminants away from the nucleic acids. Primer and polymerase molecules are used to replicate the target sequences of nucleic acids in the sample. Labeled DNA probe molecules serve to hybridize to the amplified target sequences for detection. Appropriate buffers allow these manipulations on the nucleic acid molecules in the samples.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: January 17, 1995
    Assignee: Gene Tec Corporation
    Inventor: Marilyn J. Stapleton
  • Patent number: 5346672
    Abstract: A cover has been designed to make a sealed chamber over a desired specimen area to control reagent evaporation which is critical for amplifying DNA in slide specimens. The cover is positioned over the specimen and temporarily adhered to, or pushed against, the slide, forming a sealed chamber. Reagents are added through a channel in the cover with a standard pipette and the channel opening is closed to prevent evaporative loss of reagents. The chamber is also designed to relieve internal vapor pressure, which is creating upon heating, thereby facilitating diffusion in and out of cells rather than allowing high pressure to flatten cells against the slide surface. Increasing the height of the chamber upwards toward a neck in the cover allows air bubbles being formed during each cycle to leave the specimen area, while at the same time preventing water vapor loss or partitioning of water vapor condensate.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: September 13, 1994
    Assignee: Gene Tec Corporation
    Inventors: Marilyn J. Stapleton, Villette S. Thorpe, Warren R. Jewett
  • Patent number: 5281516
    Abstract: An apparatus and method for performing automated sample preparation, DNA amplification and detection, which apparatus has heat-sinking, flat carriers for holding specimens and reagents, devices for heating and cooling and maintaining the specimen to or at any given temperature for any given time periods, and a computer to generate signals that control said temperatures and times.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: January 25, 1994
    Assignee: Gene Tec Corporation
    Inventors: Marilyn J. Stapleton, Warren R. Jewett
  • Patent number: 5188963
    Abstract: The matrix carrier is a hinged compartment facilitating automation of DNA- and RNA-based diagnostics and genetic surveillance and detection. Specimens are embedded in a matrix in the carrier. The matrix is then treated by one or more of the techniques such as amplification, electrophoresis, and hybridization as selected for the desired analysis and then the sample is treated to detect the cellular component.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: February 23, 1993
    Assignee: Gene Tec Corporation
    Inventor: Marilyn J. Stapleton
  • Patent number: RE35716
    Abstract: An apparatus and method for performing automated sample preparation, DNA amplification and detection, which apparatus has heat-sinking, flat carriers for holding specimens and reagents, devices for heating and cooling and maintaining the specimen to or at any given temperature for any given time periods, and a computer to generate signals that control said temperatures and times.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: January 20, 1998
    Assignee: Gene Tec Corporation
    Inventors: Marilyn J. Stapleton, Warren R. Jewett