Darius Fredrick Mostowfi

US Patent:

7181261, Feb 20, 2007

Filed:

Jan 15, 2004

Appl. No.:

10/758495

Inventors:

James H. Silver - Palo Alto CA, US
Darius Fredrick Mostowfi - San Carlos CA, US

International Classification:

A61B 5/05
C12N 9/00
C12N 11/00
C12M 1/00
C25B 9/00
G01N 1/00

US Classification:

600345, 20440301

Abstract:

A sensor is disclosed, for implantation within a blood vessel to monitor a substance in or property of blood. In one embodiment, the sensor is retrievable. In another embodiment, the sensor has a layer that minimizes the formation of thrombus. A signal representative of the substance in or property of blood is transmitted to an external receiver. In another embodiment, the sensor detects nitric oxide or a nitric oxide metabolite and can be implanted for a period of hours, days, weeks or years. Methods are also disclosed.

US Patent:

7739934, Jun 22, 2010

Filed:

Oct 3, 2008

Appl. No.:

12/244994

Inventors:

Vladimir Tetelbaum - Redwood City CA, US
Darius Mostowfi - San Carlos CA, US
Richard Surprenant - San Jose CA, US

Assignee:

Power Tool Institute - Cleveland OH

International Classification:

B26D 5/00
G05B 19/18
B26B 5/00

US Classification:

83 58, 83 621, 83490, 834771, 834772, 83581, 700 1, 700 10, 700 21

Abstract:

Power tool includes a movable blade and a detection system for detecting contact between the blade and an object. Detection system includes an excitation plate capacitively coupling the drive signal to the movable blade. A circuit generates an in phase component signal and a quadrature component signal from a blade current signal indicative of the instantaneous current drawn by the movable blade and calculates an energy of the blade current signal considering the in-phase and the quadrature components. The circuit compares the energy of the blade current signal to an adaptive trigger threshold to detect contact between the blade and the object based on whether the energy of the blade current signal is greater than the adaptive trigger threshold.

US Patent:

7769420, Aug 3, 2010

Filed:

Nov 16, 2005

Appl. No.:

11/280680

Inventors:

James H. Silver - Palo Alto CA, US
Darius F. Mostowfi - San Carlos CA, US

International Classification:

A61B 5/00

US Classification:

600345, 600300, 600504

Abstract:

A sensor is disclosed, for implantation within a blood vessel to monitor a substance in or property of blood. In one embodiment, the sensor detects nitric oxide or a nitric oxide metabolite. In another embodiment, other substances such as glutamate, aspartate, arginine, citrulline, acetylcholine, calcium, potassium, or dopamine are monitored. The sensor may be attached to a support structure such as a stent, guidewire, or catheter. In a further embodiment, a catheter is disclosed that extracts patient fluid to a sensor outside the body for monitoring a substance or property of the patient fluid. Methods are also disclosed.

US Patent:

8114350, Feb 14, 2012

Filed:

Oct 20, 2011

Appl. No.:

13/277989

Inventors:

James H. Silver - Palo Alto CA, US
Darius F. Mostowfi - San Carlos CA, US

International Classification:

C12Q 1/20
G01N 33/00
G01N 33/50

US Classification:

422 681, 435 29, 436 68

Abstract:

A system is disclosed that extracts bodily fluid to a reaction chamber for monitoring a substance or property of the patient fluid. In one embodiment, a pump is used to advance the sample of bodily fluid through a filter to produce a filtrate. Another pump advances filtrate into the reaction chamber, while another pump advances reactant into the reaction chamber. A sensor in communication with the reaction chamber determines a concentration of nitric oxide or one of its metabolic products. Methods are also disclosed.

US Patent:

8186253, May 29, 2012

Filed:

Apr 28, 2010

Appl. No.:

12/769396

Inventors:

Vladimir Tetelbaum - Redwood City CA, US
Darius Mostowfi - San Carlos CA, US
Richard Suprenant - San Jose CA, US

Assignee:

Power Tool Institute - Cleveland OH

International Classification:

B23Q 11/00
B26D 7/22
B26D 5/00
G05B 19/18

US Classification:

83 13, 83 621, 83490, 834771, 834772, 83581, 700 1, 700 10, 700 21

Abstract:

Power tool includes a movable blade and a detection system for detecting contact between the blade and an object. Detection system includes an excitation plate capacitively coupling the drive signal to the movable blade. A circuit generates an in-phase component signal and a quadrature component signal from a blade current signal indicative of the instantaneous current drawn by the movable blade and calculates an energy of the blade current signal considering the in-phase and the quadrature components. The circuit compares the energy of the blade current signal to an adaptive trigger threshold to detect contact between the blade and the object based on whether the energy of the blade current signal is greater than the adaptive trigger threshold.

US Patent:

8242920, Aug 14, 2012

Filed:

Jan 15, 2009

Appl. No.:

12/354132

Inventors:

Darius Mostowfi - San Carlos CA, US
Brian Lamb - San Francisco CA, US
Jackie Lai - Mountain View CA, US
Andrew Butler - Palo Alto CA, US

Assignee:

D2M International Pty Ltd. - Hong Kong

International Classification:

G08B 21/00

US Classification:

340605, 4415

Abstract:

A leak detector is disclosed. The optical leak detector may include a sensor module for transmitting and receiving signals corresponding to the surface level of a monitored fluid and include leak detection logic for detecting a leak signature. The leak detection logic may be configured to determine if fluid contained in a tank is in a non-full state outside of a normal state and activate an alarm.

US Patent:

20030114735, Jun 19, 2003

Filed:

Aug 9, 2002

Appl. No.:

10/217202

Inventors:

James Silver - Redwood City CA, US
Darius Mostowfi - San Carlos CA, US

International Classification:

A61B005/00

US Classification:

600/300000

Abstract:

A sensor is disclosed, for implantation within a blood vessel to monitor an analyte in blood. In one embodiment, the sensor is retrievable. In another embodiment, the sensor is an immunosensor. A signal representative of a reaction between an analyte and an antigen of the analyte is transmitted to an external receiver. Methods are also disclosed.

US Patent:

20040205777, Oct 14, 2004

Filed:

Jul 3, 2003

Appl. No.:

10/613656

Inventors:

Anthony Zalenski - Boca Raton FL, US
Albert Papp - Mountain View CA, US
John Cooney - San Carlos CA, US
Andre Milota - Oakland CA, US
Darius Mostowfi - San Carlos CA, US

International Classification:

G06F003/00
G06F013/00
G06F015/16

US Classification:

719/320000, 379/900000, 709/230000

Abstract:

A system and method for implementing large and/or multiple telecommunication protocols utilizing memory-limited processors. Telecommunication protocols are expressed as virtual machine instructions defining a finite state machine. A telecommunication protocol engine implements the telecommunication protocols using a virtual machine operating under the control of a CPU. A telephony gateway comprising a telecommunication protocol engine interfaces with a communication device and a packet switched network. A network of telephony gateways communicating with a provider gateway facilitates communication over a packet switched network. A call placed by a calling telephony gateway to a receiving device on the same network or another network is routed according to a prefix in a telephone code sent by the calling telephony gateway.