Roop L Mahajan, Age 74Fairfax, VA

7951144, May 31, 2011

Jan 18, 2008

12/016754

Roop L. Mahajan - Blacksburg VA, US
Ming Yi - Blacksburg VA, US
Ronald J. Podhajsky - Boulder CO, US
Hrishikesh V. Panchawagh - Rochester NY, US

A61B 18/18
G01N 25/00
G01N 25/18
G01N 25/20

606 41, 374 10, 374 11, 374 43, 374 44

According to the present disclosure, a system for sensing attributes of tissue in at least one direction is provided. The system includes a thermal conductivity probe having a sensor configured to measure thermal conductivity in the target tissue in at least one direction, and an electrical conductivity probe having a sensor configured to measure electrical conductivity in the target tissue in at least one direction, a power supply operatively coupled to the thermal conductivity probe and being configured to supply power to the thermal conductivity probe, an impedance analyzer operatively coupled to the electrical conductivity probe, and a computer operatively coupled to at least one of the power supply, the multimeter and the impedance analyzer.

2011020, Aug 25, 2011

Apr 29, 2011

13/098199

Roop L. Mahajan - Blacksburg VA, US
Ming Yi - Blacksburg VA, US
Ronald J. Podhajsky - Boulder CO, US
Hrishikesh V. Panchawagh - Rochester NY, US

TYCO Healthcare Group LP - Boulder CO

H05K 13/00

295921

According to the present disclosure, a system for sensing attributes of tissue in at least one direction is provided. The system includes a thermal conductivity probe having a sensor configured to measure thermal conductivity in the target tissue in at least one direction, and an electrical conductivity probe having a sensor configured to measure electrical conductivity in the target tissue in at least one direction, a power supply operatively coupled to the thermal conductivity probe and being configured to supply power to the thermal conductivity probe, an impedance analyzer operatively coupled to the electrical conductivity probe, and a computer operatively coupled to at least one of the power supply, the multimeter and the impedance analyzer.

2012011, May 10, 2012

Jan 17, 2012

13/351553

Roop L. Mahajan - Blacksburg VA, US
Ming Yi - Beijing, CN
Ronald J. Podhajsky - Boulder CO, US
Hrishikesh V. Panchawagh - Rochester NY, US

TYCO Healthcare Group LP - Boulder CO

A61B 5/053

600547

According to the present disclosure, a system for sensing attributes of tissue in at least one direction is provided. The system includes a thermal conductivity probe having a sensor configured to measure thermal conductivity in the target tissue in at least one direction, and an electrical conductivity probe having a sensor configured to measure electrical conductivity in the target tissue in at least one direction, a power supply operatively coupled to the thermal conductivity probe and being configured to supply power to the thermal conductivity probe, an impedance analyzer operatively coupled to the electrical conductivity probe, and a computer operatively coupled to at least one of the power supply, the multimeter and the impedance analyzer.

4421786, Dec 20, 1983

Jun 1, 1982

6/383881

Roop L. Mahajan - Lawrenceville NJ
Joseph R. Ristorcelli - Belle Mead NJ

Western Electric Co. - New York NY

H01L 2102

427 82

A chemical vapor deposition reactor (40) is disclosed. The reactor (40) has a vertically mounted tube (43), axially disposed within a chamber (41). A plurality of spaced, planar, wafer holders (44--44), having resistance heated portions (45--45) thereon, are fixedly mounted to and radially extend from the tube (43). Silicon wafers (13--13) are placed on the resistance heated portions of the holders (44--44) and reactant gases are caused to radially flow through apertures (91--91) in the tube (43), between adjacent heated holders (44--44) and across the surface of the wafers (13--13) to deposit doped silicon thereon. Undeposited reactants and gases are removed via an axisymmetric exhaust port 81.

4187974, Feb 12, 1980

Mar 13, 1978

5/885930

Roop L. Mahajan - Lawrenceville NJ

Western Electric Company, Inc. - New York NY

B23K 300

228242

A first vessel is mounted within and spaced from a second vessel. A primary heat transfer liquid is introduced into the first vessel and a secondary heat transfer liquid introduced into the second vessel. Heating coils immersed in the secondary heat transfer liquid are energized to boil the secondary liquid to form a body of secondary vapor, a portion of which condenses on the outer surface of the first vessel to heat said vessel and boil the primary liquid therein to form a body of primary vapor. An article having previously applied solder thereon is immersed in said body of primary vapor and the solder caused to melt and flow due to the latent heat of vaporization transferred thereto by the primary vapor condensing thereon. Additionally, a tertiary body of vapor is formed above the primary vapor to substantially preclude the loss of the primary vapor to the atmosphere.

2020026, Aug 20, 2020

May 1, 2020

16/865031

- Blacksburg VA, US
Mohammad Bonakdar - Blacksburg VA, US
Eduardo L. Latouche - Chelsea MA, US
Roop L. Mahajan - Blacksburg VA, US
John L. Robertson - Floyd VA, US
Christopher B. Arena - Burlington NC, US
Michael B. Sano - Durham NC, US

A61B 5/053

Provided herein are devices, systems, and methods for monitoring lesion or treated area in a tissue during focal ablation or cell membrane disruption therapy.

2017036, Dec 21, 2017

Dec 15, 2015

15/536333

- Blacksburg VA, US
MOHAMMAD BONAKDAR - BLACKSBURG VA, US
EDUARDO L. LATOUCHE - BLACKSBURG VA, US
ROOP L. MAHAJAN - BLACKSBURG VA, US
JOHN L. ROBERTSON - BLACKSBURG VA, US
CHRISTOPHER B. ARENA - BLACKSBURG VA, US
MICHAEL B. SANO - BLACKSBURG VA, US

A61B 5/053
G01N 33/543
A61B 5/01

Provided herein are devices, systems, and methods for monitoring lesion or treated area in a tissue during focal ablation or cell membrane disruption therapy. Provided herein are embodiments of an electrical conductivity sensor having an impedance sensor, where the impedance sensor can be configured to measure a low-frequency and a high-frequency impedance and a substrate, where the impedance sensor is coupled to the substrate. The substrate can be flexible. In embodiments, the impedance sensor can contain two or more electrical conductors. The electrical conductors can be in a bipolar configuration. The electrical conductors can be in a tetrapolar configuration. In embodiments, the electrical conductivity sensor can have two impedance sensors that can be coupled to the substrate such that they are orthogonal to each other.

2016019, Jul 7, 2016

Mar 14, 2016

15/068945

- Blacksburg VA, US
Naresh Budhavaram - Blacksburg VA, US
Roop Mahajan - Blacksburg VA, US

D04H 1/728
D01F 6/06
D01F 6/62
D01F 6/04

Fibers having two or more alternating polymer layers are formed by co-extrusion followed by electroprocessing. The fibers can be used as a non-woven mat or other substrate for a variety of applications. Delamination of the fibers using ultrasonication yields separated, micro and nanolayer, fiber ribbons which may also be used a non-woven mat or other substrate.