ERICK A GRAY
Optometry at Quilting Way, Columbia, MD

5833923, Nov 10, 1998

Dec 22, 1995

8/577107

Joseph A. McClintock - Baltimore MD
Mary Ann Childs - Baltimore MD
Gregory K. Shipman - Baltimore MD
William P. Trainor - Hillsboro Beach FL
Erick Gray - Columbia MD
David Bernstein - Eldersburg MD

Universal Healthwatch, Inc. - Columbia MD

G01N 2176

422 52

A system and method for performing an assay for target analytes includes a sampling-device holder interface and a quantifier. The sampling device has a sampling portion and a reading portion containing a chemiluminescent reagent. The interface has a sampling-device holder and a light detector. The holder has a housing having an enclosure with a channel and a base plate with an opening. The base plate and the enclosure houses a slidable tray. The tray has a compartment adapted to seat the sampling device and an opening extending through the compartment. The reading portion is aligned with the tray opening. When the tray is closed, the tray opening is also aligned with the base plate opening, exposing the reading portion. Once the sampling portion is exposed to a sample suspected of containing the target analyte, at least one carrier liquid is introduced, if needed, to the sampling portion to transport any target analyte to the reading portion by dispersion. To measure the emitted light, the sampling device is seated into the tray.

5824268, Oct 20, 1998

Oct 14, 1997

8/950331

David Bernstein - Eldersburg MD
Mary Ann Childs - Baltimore MD
William Trainor - Hillsboro Beach FL
Majorie Wier - Columbia MD
Erick Gray - Columbia MD

Universal Health Watch, Inc. - Columbia MD

G01N 33558

422 56

A test strip, a device incorporating the test strip and a method for use of the test strip within the device detecting an analyte in a solution or bodily fluid are disclosed. The test strip was three zones, a reaction zone coated with a substance that binds the analyte, a sample zone with a region for addition of the sample of solution or fluid, and a detection region zone with a region coated with detection reagent. An absorbent pad underlies the reaction zone. The reaction zone is a small membrane and is physically in contact on its upper surface with both the sample zone and the detection zone. The test strip is incorporated into a device which includes a sample collection/transferring device, a housing for holding the test strip, and a container for holding solvent solutions at both outer ends of the test strip such that the solvent solutions can come into contact with the outer ends of the test strip when pressure is applied to the ends. The method involves placing a sample onto the strip using the sample collection/transferring device, causing solvent solutions to come into contact with the sample and detection membranes, and observing the test results. The resulting orthogonal buffer flow is an improvement over current methods because it reduces the number of steps and the time required for performance of a sequential assay.

5783399, Jul 21, 1998

Nov 17, 1995

8/560094

Mary Ann Childs - Baltimore MD
Gregory K. Shipman - Baltimore MD
William P. Trainor - Hillsboro Beach FL
Erick Gray - Columbia MD
David Bernstein - Eldersburg MD

Universal Healthwatch, Inc. - Columbia MD

G01N 3353, G01N 33554, C12Q 100, C12Q 102

435 72

A method which utilize chemiluminescence for analyte detection and the detection of bacteria on surfaces. The method uses a device comprising a sampling portion made of a first adsorbent material, a container, and a second adsorbent material located within the container. The sampling portion collects analytes from a test sample which includes a surface or volume of a liquid. The second adsorbent material holds one or more chemiluminescent components including luciferase enzyme and cofactors in a dry state. In a preferred embodiment, the sampling portion is swabbed over a suspected contaminated surface. A bacteriolytic solution is then added to the adsorbent and releases ATP from any bacteria present. The ATP diffuses into the second adsorbent and mixes with the reagents therein to produce detectable light.

D478250, Apr 6, 1999

Oct 17, 1996

D/061172

Mary Ann Childs - Baltimore MD
Thomas He - Ellicot City MD
Greg K. Shipman - Baltimore MD
William Trainor - Hillsboro Beach FL
Erick Gray - Columbia MD
Mohammud Afzal Chowdhury - Columbia MD
Joseph A. McClintock - Baltimore MD
David Bernstein - Eldersburg MD

Universal Healthwatch, Inc. - Columbia MD

2402

D24223

5766962, Jun 16, 1998

Dec 22, 1995

8/577128

Mary Ann Childs - Baltimore MD
Mohammed A. Chowdhury - Greenbelt MD
David Bernstein - Eldersburg MD
Gregory K. Shipman - Baltimore MD
Erick Gray - Columbia MD

Universal Healthwatch, Inc. - Columbia MD

G01N 33543, G01N 2100, G01N 3122, G01N 3353

436518

Improved devices for collecting and analyzing samples of aqueous solutions, body fluids, sewage or fecal matter to be used in detecting microbes and microbial byproducts. A device in accordance with the invention comprises a body including an internal channel having an entryway, a solute chamber connected to the entryway, a solute-adding mechanism operatively connected to the solute chamber, a window in the body that allows viewing of a portion of the channel, and an aperture in the body that opens to the channel; a bendable tang connected to the body; and a sample collection unit attached to the tang.

D448300, Jan 26, 1999

Nov 19, 1996

D/065444

Mary Ann Childs - Baltimore MD
Thomas He - Ellicott City MD
Greg K. Shipman - Catonsville MD
William Trainor - Hillsboro Beach FL
Erick Gray - Columbia MD
Mohammud Afzal Chowdhury - Columbia MD
Joseph A. McClintock - Baltimore MD
David Bernstein - Eldersburg MD

Universal Healthwatch, Inc. - Columbia MD

2402

D24224