1
Bobby G Batten, John A Companion: System for examining, mapping, diagnosing, and treating diseases of the prostate. MedSci Technologies, George F Helfrich, November 30, 2004: US06824516 (175 worldwide citation)

A holistically integrated ultrasonic system for examining, mapping, diagnosing, and treating diseases of the prostate gland in a male human includes an ultrasonic transrectal probe and an ultrasonic transurethral probe. Each of these probes is adapted to pulse and to receive, as well as to produce a ...


2
Adam Beach: Scientifically adaptable driver. George F Helfrich, April 1, 2008: US07351161 (91 worldwide citation)

An improved golf ball driver has a first weight positioned within the clubhead of the driver, and a first means for adjusting the first weight in a generally vertical direction within the clubhead, that is, from top to bottom thereof. The improved driver also has a second weight positioned within th ...


3
Michael J Walsh, John B Anders, Jerry N Hefner: Combined riblet and lebu drag reduction system. The United States of America represented by the Administrator of the National Aeronautics and Space Administration, George F Helfrich, John R Manning, November 17, 1987: US04706910 (78 worldwide citation)

The invention is a system of flow control devices which result in reduced skin friction on aerodynamic and hydrodynamic surfaces. The devices cause a breakup of large-scale disturbances in the boundary layer of the flow field. Referring to FIGS. 1 and 2, the riblet device 10 acts to reduce disturban ...


4
John A Companion, Joseph S Heyman, Beth A Mineo, Albert R Cavalier, Travis N Blalock: Rapidly quantifying the relative distention of a human bladder. The United State of America represented by the Administrator of the National Aeronautics and Space Administration, George F Helfrich, John R Manning, Charles E B Glenn, August 1, 1989: US04852578 (76 worldwide citation)

A device and method rapidly quantifying the relative distention of the bladder of a human subject are disclosed. Ultrasonic transducer 1, which is positioned on subject 2 in proximity to bladder 16, is excited by pulser 3A under command of microprocessor 4 to launch an acoustic wave into patient 2. ...


5
Harlan K Holmes, Thomas C Moore Jr, Andrew J Fantl: Circumferential pressure probe. The United States of America represented by the Administrator of the National Aeronautics and Space Administration, Virginia Commonwealth University, George F Helfrich, John R Manning, Charles E B Glenn, October 17, 1989: US04873990 (70 worldwide citation)

A probe for measuring circumferential pressures inside a body cavity. In the preferred embodiment, a urodynamic pressure measurement probe for evaluating human urinary sphincter function is disclosed. Along the length of the probe are disposed a multiplicity of deformable wall sensors (15) which typ ...


6
Michael F Leban: Hybrid air boost vehicle and method for making same. George F Helfrich, June 1, 2004: US06742616 (62 worldwide citation)

A hybrid air boost vehicle makes use of the porous panels and suction devices of a vehicle aerodynamic drag reduction system, and makes use of the air consumed by such a system, to provide the energy and air to power a land or water based ground effects vehicle. Energy and air consumed by the suctio ...


7
Brian J Jensen, Robert G Bryant, Paul M Hergenrother: Phenylethynyl-terminated poly(arylene ethers). The United States of America represented by the Administrator of the National Aeronautics and Space Administration, George F Helfrich, December 7, 1993: US05268444 (48 worldwide citation)

Phenylethynyl-terminated poly(arylene ethers) are prepared in a wide range of molecular weights by adjusting monomer ratio and adding an appropriate amount of 4-fluoro-4'-phenylethynylbenzophenone during polymer synthesis. The resulting phenylethynyl-terminated poly(arylene ethers) react and crossli ...


8
Leonard M Weinstein: Ice detector. The United States of America represented by the Administrator of the National Aeronautics and Space Administration, George F Helfrich, John R Manning, August 23, 1988: US04766369 (47 worldwide citation)

An ice detector 11 is provided for the determination of the thickness of ice 22 on the outer surface 12 on an object (e.g., aircraft 10) independently of temperature or the composition of the ice 22. First capacitive gauge 16, second capacitive gauge 18, and temperature gauge 20 are embedded in embe ...


9
John H Sanders: Electrically conductive textile fiber. Badische Corporation, George F Helfrich, March 10, 1981: US04255487 (45 worldwide citation)

Finely divided, electrically conductive particles are uniformly suffused into a filamentary polymer substrate in an annular region located at the periphery of the filamentary polymer substrate and extending along the length thereof. The electrically conductive particles are employed in an amount suf ...


10
Ian O Macconochie, Martin M Mikulas Jr, Jack E Pennington, Rebecca L Kinkead, Charles F Bryan Jr: Space spider crane. The United States of America represented by the Administrator of the National Aeronautics and Space Administration, George F Helfrich, John R Manning, Robert D Marchant, April 19, 1988: US04738583 (42 worldwide citation)

A space spider crane 15 is provided for the movement, placement, and/or assembly of various components on or in the vicinity of a space structure 120. Space spider crane 15 is comprised of a small central body 16 to which manipulators 24 and legs 25 are attached. The legs 25 are equipped with consta ...