DR. PROTAGORAS NICHOLAS CUTCHIS, M.D.
Radiology at Johns Hopkins Rd, Laurel, MD

6647983, Nov 18, 2003

Mar 6, 2001

09/681248

Dexter G. Smith - Columbia MD
Michael P. Boyle - Severna Park MD
Protagoras N. Cutchis - Highland MD
William R. Allmon - Catonsville PA

The Johns Hopkins University - Baltimore MD

A62B 902

12820524, 12820511

A low-pressure valve enabling precise control of a fluid flow rate through the valve during cyclical operation of the valve. The valve is useful for controlling air delivery to a patient as part of a portable ventilator. The valve comprises a housing having an inlet and two outlets and. A wiper plate and an orifice plate are disposed inside of the housing. Transverse movement of the wiper plate relative to the orifice plate , powered for example by a servomotor , simultaneously and alternatively covers and uncovers various openings in the orifice plate. The total flow through the valve is thereby divided between the two outlets and.

2013007, Mar 21, 2013

Aug 30, 2012

13/599080

Protagoras N. Cutchis - Highland MD, US
Steven M. Babin - Greenbelt MD, US

THE JOHNS HOPKINS UNIVERSITY - Baltimore MD

A61M 25/10

60410302

A timed-release drug delivery assembly includes an expandable structure and drug microparticles. The expandable structure is defined by host material that causes expansion of the expandable structure. The expandable structure has a non-expanded state prior to exposure to a gastric environment during which a size of the expandable structure enables entry of the expandable structure into a stomach of a patient, and an expanded state after exposure to the gastric environment during which the size and shape of the expandable structure prevents exit of the expandable structure from the stomach. The drug microparticles are held at least in part by the host material to enable release of the drug microparticles into the gastric environment over a predefined period of time. The expandable structure may include, in the expanded state, a substantially hollow framework to avoid blocking a pyloric valve of the stomach.

6848444, Feb 1, 2005

Jul 31, 2001

09/920431

Dexter G. Smith - Columbia MD, US
Protagoras N. Cutchis - Highland MD, US
William P. Wiesmann - Washington DC, US
Loland A. Pranger - Montgomery Village MD, US

The Johns Hopkins University - Baltimore MD

A61M 1600

12820418, 12820421

An emergency life support system including a patient ventilator for mechanical breathing assistance; a capnograph to monitor COfor ventilation effectiveness; a pulse oximeter for measuring blood stream oxygen saturation; a carbon dioxide sensor; an electrocardiograph (ECG) to monitor cardiac performance; an infusion pump; and alarms and a data recorder. The preferred embodiment uses an oxygen generator to deliver oxygen, to generate electric power to run the ventilation system, and to warm IV fluids and resuscitated air. The generator has electronically controlled valves and a modified valve system that offers the ability to select the oxygen concentration in the air delivered to the patient.

7830515, Nov 9, 2010

Jun 18, 2008

12/141298

George M. Murray - Columbia MD, US
Cheryl S. Schein - Rockville MD, US
David R. Kohler - Ocean Pines MD, US
Jennifer L. Sample - Bethesda MD, US
Jennifer A. Nix - Ellicott City MD, US
Protagoras N. Cutchis - Highland MD, US
Adam K. Arabian - Louisville KY, US
Harvey W. Ko - Ellicott City MD, US
Micah A. Carlson - Baltimore MD, US
Michael P. McLoughlin - Sykesville MD, US

The Johns Hopkins University - Baltimore MD

G01N 21/25

356417, 356 51, 356432

A method and apparatus for evaluating a bioaerosol sample is provided which includes detecting frequency and/or time resolution factors that allow discriminate between a plurality of signals emitted by the bioaerosol to selectively detect biological materials contained in the bioaerosol sample from materials of non-biological origin and potentially associated with a pathogenic bioaerosol.

8054182, Nov 8, 2011

Apr 14, 2009

12/423133

Protagoras N. Cutchis - Highland MD, US

The Johns Hopkins University - Baltimore MD

G08B 1/08

34053922, 340521, 340522, 340540, 340541, 348143, 348150, 348158, 348159, 600127, 600131, 600160, 600179, 600508

A method of inspecting a vehicle, comprising providing at an inspection site a hand-held inspection wand that transceives audio-visual information with a command/remote site a safe distance from the inspection site and that is staffed by law enforcement personnel, stopping the vehicle at the remote site, instructing an occupant of the vehicle to exit the vehicle and grasp the wand, transmitting instructions from the command site to the occupant via the wand, that direct the occupant to capture video of the vehicle at the remote site using the wand, capturing video of the vehicle using the wand, transmitting the captured video from the wand to the command site, and displaying the transmitted captured video at the command site.

5969504, Oct 19, 1999

Mar 6, 1998

9/035278

Protagoras N. Cutchis - Highland MD

The Johns Hopkins University - Baltimore MD

H02J 700

320121

An automatic battery power switch circuit which switches from n to n+m cells, where n and m are integers, in a battery. The circuit delivers a relatively constant voltage over a wide range of load current conditions. One embodiment switches based on load current. Another embodiment switches based on the output voltage of the circuit. The circuit provides a high speed automatic switch used in devices that require at least two power states, that can function as a voltage regulator, and that can significantly prolong functional battery life.

7494769, Feb 24, 2009

Apr 16, 2003

10/503168

George M. Murray - Columbia MD, US
Cheryl S. Schein - Rockville MD, US
David R. Kohler - Ocean Pines MD, US
Jennifer L. Sample - Bethesda MD, US
Jennifer A. Nix - Ellicott City MD, US
Protagoras N. Cutchis - Highland MD, US
Adam K. Arabian - Louisville KY, US
Harvey W. Ko - Ellicott City MD, US
Micah A. Carlson - Baltimore MD, US
Michael P. McLoughlin - Sykesville MD, US

The Johns Hopkins University - Baltimore MD

C12Q 1/70

435 5

A method and apparatus for evaluating a bioaerosol sample is provided which includes detecting frequency and/or time resolution factors that allow discriminate between a plurality of signals emitted by the bioaerosol to selectively detect biological materials contained in the bioaerosol sample from materials of non-biological origin and potentially associated with a pathogenic bioaerosol.

7080646, Jul 25, 2006

Aug 26, 2002

10/228166

William P. Wiesmann - Washington DC, US
Protagoras N. Cutchis - Highland MD, US
Loland Alex Pranger - Montgomery Village MD, US

Sekos, Inc. - Germantown MD

A61M 16/00

12820426, 12820418

The portable ventilators of the present invention provide a hands-free ventilatory support device in critical care, emergency and resource limited environments. The portable ventilators utilize ambient air and include a two dual head compressor system to provide a consistent air supply to the patient. The ventilator device is battery operated and is capable of providing up to 60 minutes of care.

7032589, Apr 25, 2006

Jan 23, 2003

10/349628

Dexter G. Smith - Columbia MD, US
Jennifer A. Nix - Ellicott City MD, US
Protagoras N. Cutchis - Highland MD, US

The Johns Hopkins University - Baltimore MD

A61M 15/00, A62B 7/00, F01N 7/08, F01D 25/04, F04B 39/00

12820024, 12820421, 12820426, 181403, 181248, 415119, 417312

A portable ventilator for providing an air-recipient with compulsory respiration is provided with an outlet manifold and a single-expansion-chamber muffler configured so that airflow through an inhale outlet port of the muffler is pulse-free and a transmission loss, defined as the ratio of sound power generated by the at least one compressor and incident on the muffler to the sound power transmitted by the muffler, is sufficient to deaden the sound power of the compressor.