With more than 30 years experience, an excess of 1,500 patents and trademarks filed, you can count on us to put the depth of our experience to work for you in the domestic and international arenas.

We've worked with patent application and intellectual property rights in such divers areas as electronics, mechanics, optics, medicine, manufacturing, chemistry, biology, business methods, and computer software.

Examples of patents we've filed on behalf of our clients:



  • Unidirectional captive displacement prover

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United States Patent 7,650,775
Published January 26, 2010
Inventor: Ignatian; Alexander (Phoenix, AZ)
Assignee: Flow Management Devices, LLC (Phoenix, AZ)

Unidirectional captive displacement prover

A prover includes a piston supporting rod extending longitudinally through a cylinder, which cylinder receives and discharges a fluid to measure the flow rate of the fluid by translation of the piston from the fluid receiving end to the fluid discharging end. Motive means includes at least one reel mounted belt for drawing the rod toward the fluid receiving end of the cylinder. Upon such movement of the rod, a poppet valve formed as part of the piston opens to permit fluid flow through the piston. A clutch serving as part of the motive means permits travel of the piston from the fluid receiving end to the fluid discharging end of the cylinder and serve the flow rate measuring function of the prover. Apparatus is also provided to permit opening of the poppet valve for maintenance and/or repair purposes. A framework permits support of the prover in a horizontal or a vertical orientation without affecting the operation, repair or maintenance of the prover.

Utility patent 7,650,775

  • Drill energized power module

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United States Patent 7,588,109
Published September 15, 2009
Inventors: Wachendorf; Marvin J. (Chandler, AZ), Mattio; Anthony (Henderson, NV)

Drill energized power module

A power module provides power to move a vehicle, such as a mini-bike, and includes a portable electric drill acting through a gear box and chain drive to rotate a wheel of the vehicle.

Utility patent 7,588,109

  • Lintel supported masonry wall system and method

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United States Patent 7,454,870
Published November 25, 2008
Inventors: Greenberg; Harold H. (Prescott, AZ), Campbell, Jr.; Richard C. (Oro Valley, AZ)

Lintel supported masonry wall system and method

A wall system or structure includes a lintel supported wall and footings for locating the lintel above ground. Tensioning rods extend upwardly from each footing for directly engaging an end of the wall or for securing a post to the footing, which post includes a slot for engaging the vertical edge of the wall. A plate resting on each footing may be used to support an end of the lintel above ground. Tensioning rods extend vertically from within the lintel upwardly into the wall.

Utility patent 7,454,870

  • Apparatus for rapidly heating and cooling a mold

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United States Patent 7,438,548
Published October 21, 2008
Inventors: Augustine; Joseph G. (Tucson, AZ), Sumeer; Tulsie P. (Tucson, AZ), Prior; Randy L. (Oro Valley, AZ)
Assignee: Engineering & Research Associates, Inc. (Tucson, AZ)

Apparatus for rapidly heating and cooling a mold

A mold for forming, molding or welding thermoplastic tubing extends through the aperture of an apertured spool supporting an RF energized coil to inductively heat a center section of the mold. A source of air is channeled through a manifold to flow about the center section of the mold and through the space between the mold and the aperture in the spool to rapidly cool the mold. Thermal chokes on each side of the center section of the mold impede heat transfer and a heat sink connected to each thermal choke serves to dissipate any heat build up. The spool may be translated along the center section of the mold to a predetermined location commensurate with a predetermined heat profile. The mold includes a passageway extending therethrough for receiving the tubing; by appropriate dimensioning, the passageway will accommodate the use of a mandrel to support the tubing to be formed, molded or welded. The mold may be split to permit separation within the confines of the aperture in the spool and subsequent withdrawal of the formed, molded or welded tubing.

Utility patent 7,438,548

  • Simplified ocular fundus auto imager

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United States Patent 7,360,895
Published April 22, 2008
Inventors: Cornsweet; Tom N. (Prescott, AZ), Buck; Gary F. (Prescott, AZ), Peterson; Paul R. (Prescott, AZ)
Assignee: Visual Pathways, Inc. (Prescott, AZ)

Simplified ocular fundus auto imager

An ocular fundus imager automatically aligns fundus illuminating rays to enter the pupil and to prevent corneal reflections from obscuring the fundus image produced. Focusing the produced fundus image is automatically performed using a pair of video sensors and is based upon the fundus image itself. A head restraint is used to reduce the gross alignment between the optical system and the patient's pupil.

Utility patent 7,360,895

  • Apparatus for extending and retracting a pool cover

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United States Patent 7,325,259
Published February 5, 2008
Inventor: Wood; Charles F. (Peoria, AZ)
Assignee: Sun Systems, Inc. (Phoenix, AZ)

Apparatus for extending and retracting a pool cover

Apparatus for extending and retracting a cover for a swimming pool includes a motor for selectively rotating a clutch in one direction or the other direction. A first pawl, extending within the clutch, drives a first cam to cause rotation of a set of pulleys for winding cords thereabout to extend the cover from about a roller and a second pawl, extending within the clutch, drives a second cam to cause rotation of the roller to wrap the cover thereabout. First and second lift arms lift the first and second pawls out of engagement with the first and second cams, respectively as a function of the direction of rotation of the clutch to ensure that only one of the first and second cams is rotated by the clutch. A cylinder mounted on a shaft in engagement with the armature of the motor is in frictional contact with spring loaded brakes within the clutch to transfer rotational movement of the armature to the clutch. A compensator in engagement with the cords, through pulleys therewithin and spools therewithout, compensates for changes in relative length of the cords over time and for lack of squareness of the pool.

Utility patent 7,325,259

  • Endotracheal camera

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United States Patent 7,297,105
Published November 20, 2007
Inventor: Mackin; Robert A. (Flagstaff, AZ)

Endotracheal camera

A low cost camera and radio frequency transmitter are coupled to an endotracheal tube to obtain an image in real time of tissue at the distal end of the endotracheal tube. The image recorded by the camera is transmitted to a low cost radio frequency receiver nearby and conveyed to a video monitor to display the image. The use of a wireless transmission system avoids the presence of wires and cords that otherwise might become entangled and cause the endotracheal tube to be inadvertently repositioned or pulled out of the patient.

Utility patent 7,297,105

  • Apparatus for inserting, retaining and extracting a device from a compartment

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United States Patent 7,257,886
Published August 21, 2007
Inventors: Haager; James A. (Phoenix, AZ), Tupa; Ronald E. (Mesa, AZ), Fogelson; Daniel P. (Chandler, AZ)
Assignee: Adtron Corporation (Phoenix, AZ)

Apparatus for inserting, retaining and extracting a device from a compartment

Each of one or more devices to be detachably attached to a mechanical substructure includes rails on opposed sides with insertion/extraction mechanisms. Each of a plurality of pairs of guides mounted on the substructure slidably receives and retains a respective set of rails upon attachment of the devices. The insertion/extraction mechanism includes one or more pivotable handles associated with each device for retaining the device with the substructure. A spring extending from a rail makes electrical contact with electrostatic discharge ground pads on the substructure to discharge existing static charge from the device prior to electrical engagement between an electrical connector on the device and an electrical connector on the substructure. An apertured plate of the substructure includes a plurality of apertures through which the devices are inserted/extracted. A face plate may be hingedly attached to and removable from the apertured plate to cover all of the apertures therein that accommodate insertion/extraction of the devices.

Utility patent 7,257,886

  • Method for unattended sealing of tubing

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United States Patent 7,211,776
Published May 1, 2007
Jensen; Joseph C. (Tucson, AZ)
Engineering & Research Associates, Inc. (Tucson, AZ)

Method for unattended sealing of tubing

A clip on welder includes two pairs of opposed grippers defined by pivotally attached upper and lower frames for latching the welder to heat weldable material, such as a length of tubing, upon actuation of a start button by an operator; thereafter, the welder operates unattended. At least a jaw of a pair of jaws disposed intermediate the two pairs of grippers heats the material compressed and lodged therebetween to form a weld in or across the material. A source of gas, such as air, under pressure selectively connected to a bellows provides the power to pivot the upper and lower frames into gripping engagement with the material. A source of electrical signals provides the power to heat the material intermediate the pair of jaws. One or more thermocouples senses the heat of the jaws and generates signals used to control the application of power and to control cooling. After completion of the weld, cooling air is directed to the jaws until the thermocouple(s) signal(s) indicates a sufficiently low temperature. Release of the welder from the material is in response to actuation of a stop button by the operator.

Utility patent 7,211,776

  • Remotely controlled model airplane having deflectable centrally biased control surface

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United States Patent 7,121,506
Published October 17, 2006
Inventor: Clancy; Andy J. (Mesa, AZ)

Remotely controlled model airplane having deflectable centrally biased control surface

A remotely controlled model airplane includes a receiver responsive to signals from a transmitter to control the direction of flight of the model airplane. The receiver, powered by a battery, demodulates the signal transmitted by the transmitter to selectively energize an electrical coil to generate a magnetic field of a first or second polarity. A rudder pivotally attached to the vertical stabilizer includes a magnet responsive to the magnetic fields generated and is urged in one direction or the other resulting in commensurate pivotal movement of the rudder. A hinge interconnecting the rudder and vertical stabilizer urges return to center of the rudder after it has been deflected left or right by the magnet responding to the magnetic field created as a result of a signal transmitted by the transmitter. An electric motor also under control of the transmitter and receiver may be incorporated to rotate a propeller to provide thrust and forward motion of the model airplane. By employing a transmitter to selectively transmit a plurality of signals, control surfaces of the model airplane can be deflected to provide 2-axis control to selectively alter the direction and pitch of the model airplane.

Utility patent 7,121,506

  • Wine glass charm

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United States Patent 6,741,150
Published May 25, 2004
Inventors: Holmes; Lisa Henry (Paradise Valley, AZ), Ostlund; Holly K. (Scottsdale, AZ), Wurm; Chrissa M. (Mesa, AZ)
Assignee: Who! International Designs, LLC (Scottsdale, AZ)

Wine glass charm

A wine glass charm includes a magnetic coupling, the components of which are disposed at the respective ends of an encircling member to detachably attach the wine glass charm to the stem or handle of a drinking vessel. The encircling member may include identifying indicia or media and for further identification purposes, a uniquely configured charm may be dependingly supported therefrom.

Utility patent 6,741,150

  • Method for treating HIV with chlorine dioxide and a phosphate compound

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United States Patent 6,274,132
Published August 14, 2001
Inventor: Ratcliff; Perry A. (Scottsdale, AZ)

Assignee: Vortech, Inc. (Las Vegas, NV)

Method for treating HIV with chlorine dioxide and a phosphate compound

A method and solution or gel composition containing activated chlorine dioxide and phosphates, such as disodium hydrogen phosphate, sodium dihydrogen phosphate, trisodium phosphate, and sodium monofluorophosphate, is disclosed for lubricating the vagina and for treating HIV. The preferred concentration ranges are between about 0.005% to about 2.0% chlorine dioxide, and between about 0.02% to about 3.0% phosphate. The phosphate compound retards escape of chlorine dioxide in the pH range of about 6.0 to 7.4, at which pH the chlorine dioxide becomes activated and releases sufficient chlorine dioxide to reduce motility and become lethal to the involved micro-organisms.

Utility patent 6,274,132

  • Apparatus and method for determining ablation

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United States Patent 5,868,737
Published February 9, 1999
Inventors: Taylor; Junius E. (Phoenix, AZ), Acker; Loren C. (Tucson, AZ)
Assignee: Engineering Research & Associates, Inc. (Tucson, AZ)

Apparatus and method for determining ablation

A catheter for use in an electrophysiological procedure to ablate a site includes a metallic tip having a first work function and energized by a source of RF energy. The RF energy return path is through a relatively large plate of a metallic material having a second work function and disposed at a location removed from the ablation site. The difference in work functions of the tip and the plate, operating in the presence of an electrolyte represented by intermediate tissue, produces an exchange of electrical charges through chemical reaction to create a galvanic cell. By loading the galvanic cell with a shunt resistor, it becomes a current source providing a current signal having a peak value representative of occurrence of tissue damage. This representation is used to regulate the RF energy applied to the ablation site.

Utility patent 5,868,737

  • Apparatus and method for collecting, analyzing and presenting geographical information

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United States Patent 5,652,717
Published September July 29, 1997
Inventors: Miller; Raymond M. P. (Scottsdale, AZ), Orr; Wilson W. (Fountain Hills, AZ)
Assignee: City of Scottsdale (Scottsdale, AZ)

Apparatus and method for collecting, analyzing and presenting geographical information

Geographically related information is received from a plurality of sources, such as orbiting satellites, reconnaissance aircraft, photographs, maps, remote computer terminals, and the like, and is processed and integrated into a generic GIS to provide expanded information due to vast amount of data relating to geographic locations to increase the amount if information available and derivable. The processed data may be stored for later use, or it may be presented visually on a computer screen or printed to provide a hard copy. Interactive terminals may be used to provide data as desired in a real time setting. These data are manipulated to, (A) provide information of current value and utility to the user, and (B) to perform simulation of local/regional future scenarios to assess the sustainability of particular courses of action. The latter requires the merger of remote sensed, radar, or lidar imagery with change models, proposed development, video imagery and basic GIS mapping/attribute files manipulated with digital and image simulation software.

Utility patent 5,652,717

  • Suspendable ratchet for use with rope

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United States Patent D362,614
Published September 26, 1995
Inventor: Gerald M. Kingery (Gilbert, AZ)

The ornamental design for a suspendable ratchet for use with rope, as shown and described.

Design patent D362,614

FIG. 1 is a front left perspective view of a suspendable ratchet for use with rope showing my design;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is bottom plan view thereof.

  • Two part hat shaper

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United States Patent D360,291
Published July 18, 1995
Inventor: McKinley; Don (Tucumcari, NM)

The ornamental design for a two part hat shaper, as shown and described.

D360,291 Figure 1

FIG. 1 is a perspective view from above of a two part hat shaper showing my new design in an exploded view;

D360,291 Figure 2

FIG. 2 is a left side elevational view of the two part hat shaper in a disassembled state, the right side elevational view being a mirror image thereof;

D360,291 Figure 3

FIG. 3 is a front elevational view of the two part hat shaper in a disassembled state;

D360,291 Figure 4

FIG. 4 is a rear elevational view of the two part hat shaper in a disassembled state;

D360,291 Figure 5

FIG. 5 is a top plan view of the upper part of the two part hat shaper, shown separately for purposes of illustration;

D360,291 Figure 6

FIG. 6 is a top plan view of the lower part of the two part hat shaper, shown separately for purposes of illustration;

D360,291 Figure 7

FIG. 7 is a bottom plan view of the upper part of the two part hat shaper, shown separately for purposes of illustration; and,

D360,291 Figure 8

FIG. 8 is a bottom plan view of the lower part of the two part hat shaper, shown separately for purposes of illustration.

  • Intraocular lens

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United States Patent 4,504,981
Published March 19, 1985
Inventor: Walman; Gerald B. (Phoenix, AZ)

The intraocular lens, whether for implantation in the anterior or posterior chamber of the eye, embodies laterally extending non-radially oriented supporting loops which accommodate by bending compressive forces imposed thereon without flexing or bowing of the lens. The anterior chamber intraocular lens implants are fixated in the angle of the anterior chamber and locate the lens anterior of and in noncontacting relationship with the iris whether extracapsular or intracapsular surgery has been performed. The posterior chamber intraocular lens implants may be fixated in the groove posterior to the iris in an extracapsular eye or in the anterior chamber after penetration of the supporting loop segments through peripheral openings in the iris in an intracapsular eye; with either location of fixation, the lens anatomically replaces the surgically removed lens of the eye.

Utility patent 4,504,981

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