Stephen M Peterson
Engineers in Salt Lake City, UT

4854170, Aug 8, 1989

Oct 12, 1988

7/256731

Owen D. Brimhall - West Valley City UT
Stephen C. Peterson - Salt Lake City UT
Charles D. Baker - Sandy UT
Merwyn D. Riddle - Salt Lake City UT

Separation Technology, Inc. - Salt Lake City UT

G01N 2900

73570

This invention is an ultrasound apparatus for determining hematocrit. A sample of blood in a microhematocrit capillary tube is acoustically coupled to an ultrasound transducer which creates a standing wave in the blood sample. Red blood cells in the blood sample are packed in bands that correspond to the nodes of the standing wave. The thickness of the bands as a function of the thickness of the remaining plasma is an indication of the hematocrit of the blood sample.

4804355, Feb 14, 1989

Nov 17, 1987

7/121905

Owen D. Brimhall - West Valley City UT
Thomas J. McLaughlin - Salt Lake City UT
Stephen C. Peterson - Salt Lake City UT

Utah Bioresearch, Inc. - Salt Lake City UT

B04B 502

494 20

This invention relates to the ultrasound enhancement of sedimentation of particulates in a particulate-bearing fluid medium while the fluid medium is undergoing centrifugation. The ultrasound energy forms standing waves in the fluid and cause particulates in the fluid, whether solids, liquids, or gases, to agglomerate in bands. The bands approximate either the nodes or antinodes of the standing wave, depending on the density of the particulate relative to the fluid. The banded or agglomerated particulate enhances the rate of sedimentation as well as the reverse flow of suspernatent by removing particulate which would otherwise impede this flow.

6433690, Aug 13, 2002

Dec 11, 2000

09/734099

Tomasz J. Petelenz - Salt Lake City UT
Stephen C. Peterson - Salt Lake City UT
Steven C. Jacobsen - Salt Lake City UT

Sarcos, L.C. - Salt Lake City UT

G08B 2300

3405731, 3405737, 340689

A method and system for recording acceleration and body position data from elderly or disabled persons. The fall monitoring system includes signal feature extraction and interpretive methods for characterizing accelerations and body positions during fall events. The system can detect health and life threatening fall events in elderly persons, and can autonomously notify nursing personnel or family members that the person is in need of immediate assistance.

4850963, Jul 25, 1989

May 4, 1988

7/191858

Sam L. Sparks - Alpine UT
Owen D. Brimhall - West Valley City UT
Stephen C. Peterson - Salt Lake City UT
Charles D. Baker - Lehi UT

Utah Bioresearch, Inc. - Salt Lake City UT

A61B 1900

600 29

Methods and apparatus for maintaining urinary continence in normally incontinent individuals. The present invention involves the non-surgical implantation of a bolus of ferromagnetic material into the bladder. The bolus of ferromagnetic material may comprise a biocompatible membrane, containing a ferromagnetic material. The bolus will normally rest at the juncture between the bladder and the urethra and will prevent the flow of urine from the bladder into the urethra. Essentially, the bolus serves as a seal between the urethra and the bladder. When it is desired to void the bladder, the ferromagnetic bolus is moved out of the intersection between the bladder and the urethra by positioning a magnet along the external surface of the person's body and manipulating the magnet until the desired movement of the bolus is accomplished. Movement of the magnet is sufficient to displace the bolus such that flow may be initiated from the bladder into the urethra.

6165155, Dec 26, 2000

Jan 16, 1999

9/232579

Stephen C. Jacobsen - Salt Lake City UT
Roland Wyatt - Salt Lake City UT
Stephen C. Peterson - Salt Lake City UT
Tomasz J. Petelenz - Salt Lake City UT

Sarcos, LC - Salt Lake City UT

A61M 520

604156

A low-profile multipathway automatic drug delivery system utilizing a battery powered control pad coupled to a disposable drug storage and delivery system and strapped to a patient's limb or torso. A preprogrammed or on-demand drug administration sequence is input to the control pad. When a drug is to be administered, the control pad ignites a high energy density propellant charge in the drug delivery system. Expanding propellant gas exerts pressure on a drug in a second chamber and forces it from the storage reservoir. Depending upon the type of drug delivery system required for the drug being administered, the propellant will either: (i) force a hypodermic needle into a patient's muscle tissue, propel the drug in the storage container into the needle embedded in the patient, and withdraw the needle; (ii) force the drug from the storage container through a jet nozzle where the drug is injected into subcutaneous tissue; (iii) force the drug from the storage container into a patch for passive transdermal delivery; (iv) force the drug into a patch for iontophoretic transdermal diffusion; or (v) force together two drugs stored separately that are unstable when mixed, and then administer them through one of the methods described in steps (i) to (iv).

6198394, Mar 6, 2001

Dec 5, 1996

8/760855

Stephen C. Jacobsen - Salt Lake City UT
Roland Wyatt - Salt Lake City UT
Stephen C. Peterson - Salt Lake City UT
Tomasz J. Petelenz - Salt Lake City UT

G08B 2510

3405731

A system for remotely monitoring personnel status includes a plurality of sensors disposable on a soldier or other person for developing signals which may be used to determine the physiologicalal status. The sensors communicate with a soldier unit which can process the information to ensure that the sensor data falls within acceptable ranges and communicate with remote monitors. The soldier unit also includes a global positioning system. By using the sensor data and the global positioning system, leaders and medics can quickly and accurately track and treat casualties in battle. The system enables more rapid location of the casualty, as well as remote triage/initial diagnosis, thereby assuring that those who are most in need of treatment are attended to first. Typically, the system monitors both body surface and ambient temperature, heart rate, shivering, motion status and body condition. Additional sensors can be provided to supply information on other physiologicalal parameter which may be desired for more thorough diagnosis.

4874358, Oct 17, 1989

Feb 1, 1989

7/305528

Owen D. Brimhall - West Valley City UT
Stephen C. Peterson - Salt Lake City UT
Oleg Kotlyar - Salt Lake City UT
Dilip N. Ghosh Roy - Salt Lake City UT

Utah Bioreseach, Inc. - Salt Lake City UT

B04B 500, B04B 900

494 37

This invention is a dual axis, continuous flow centrifuge apparatus and method. A centrifuge head rotates in a vertical orientation about a first axis which, in turn, is rotated in a horizontal plane about a second axis. The rotation of the centrifuge head is matched to the rotation of the second axis to cancel out any net rotation of flexible conduits attached to the centrifuge head. The nonrotating coupling of the conduits permits continuous flow through the centrifuge head in the absence of seals. An angled centrifuge chamber inside the centrifuge head provides a more rapid separation of the components in the liquid passing through the centrifuge head. The path of travel of a particle in a centrifuge chamber inside the centrifuge head follows a generally cycloidal path thereby undergoing a pulsatile centrifugal force component.

4269209, May 26, 1981

Jun 30, 1980

6/164832

Stephen C. Peterson - Salt Lake City UT

B08B 304, G03D 302

134182

A sequential flow washer for photographic prints and film consisting of a tank having sidewalls, endwalls and a base, said tank being divided into multiple compartments by a series of alternately arranged baffles located between the sidewalls, one of said baffles being an overflow baffle and the adjacent baffle being an underflow baffle. From an intake manifold, water overflows one sidewall into the first of the multiple compartments and then flows down through said compartment which is created by an underflow baffle and up into the next compartment defined by an overflow baffle and over the top thereof and continues serially through compartments created by alternating underflow and overflow baffles and out over the opposite sidewall into an exit manifold. The upper edges of both sidewalls are preferably slotted to allow for the uniform flow of water into and out of the adjacent manifolds.

2010002, Jan 28, 2010

Jan 5, 2009

12/348842

Stephen C. Peterson - Salt Lake City UT, US
Tomasz J. Petelenz - Salt Lake City UT, US
Stephen C. Jacobsen - Salt Lake City UT, US

A61B 5/02

600508

A system comprising a housing containing a signal generator coupled to an antenna and a dielectric material disposed about the antenna. The device is adapted to generate and direct a plurality of signals towards the heart of the person and measure a magnitude of a signal returned from the heart. The device further comprises a processor to compare differences between a magnitude of a signal propagated and the magnitude of the signal returned off the heart and determine a signal frequency having a maximum return loss value based on those differences. The processor also estimates a change in the amplitude of motion of a portion of a wall of the heart based on the differences between the magnitude of the signal propagated by the device and the magnitude of the signal returned off of the portion of the heart.

4738655, Apr 19, 1988

Jun 17, 1987

7/063488

Owen D. Brimhall - West Valley City UT
Thomas J. McLaughlin - Salt Lake City UT
Charles D. Baker - Sandy UT
Stephen C. Peterson - Salt Lake City UT

Utah Bioresearch, Inc. - Salt Lake City UT

B04B 904

494 10

A hand-held centrifuge apparatus for sedimenting a fluid suspension in a sample tube, the sample tube being subjected to centrifugation at an acute angle to the axis of rotation. An electronic circuit activates an electric motor for a preselected time period as a function of voltage supplied by a battery to the motor to provide a predetermined degree of centrifugation to the sample. A voltage tester periodically tests the voltage in the circuit to assure that adequate voltage is being supplied by the battery. A deactivation circuit is actuated if inadequate voltage is sensed and a disabling circuit disables the electronic circuit until adequate voltage is again available. The disabling circuit is masked during acceleration to preclude deactivating the circuit when the motor is in acceleration.