1
Kurt Dobbins, Phil Andlauer, Chris Oliver, Tom Parker, Andy Grimes, Bruce Nutbrown, Dan Hullette, Roger Dev, Jason Jeffords: Network having secure fast packet switching and guaranteed quality of service. Cabletron Systems, Wolf Greenfield & Sacks, January 16, 1996: US05485455 (383 worldwide citation)

Apparatus and method for establishing "virtual connections" through a packet switched data communications network, the network including a plurality of end systems and switches connected by links. Each end system has a unique physical layer address and each switch has a connection database of valid ...


2
Kurt Dobbins, Phil Andlauer, Chris Oliver, Tom Parker, Andy Grimes, Bruce Nutbrown, Dan Hullette, Roger Dev, Jason Jeffords: Method of transmitting data packets in a packet switched communications network. Cabletron Systems, Wolf Greenfield & Sacks P C, August 4, 1998: US05790546 (187 worldwide citation)

Apparatus and method for establishing "virtual connections" through a packet switched data communications network, the network including a plurality of end systems and switches connected by links. Each end system has a unique physical layer address and each switch has a connection database of valid ...


3
Mahmoud Farhadiroushan, Tom Parker: Method and system for determining downhole optical fiber orientation and/or location. SILIXA, Honigman Miller Schwartz and Cohn, November 7, 2017: US09810809 (1 worldwide citation)

A probe is provided that contacts the inner surface of the casing or other production tubing and imparts energy to the surface at the contact point, for example as heat energy or mechanical energy. Energy is imparted around the circumference of the casing, and a fiber optic distributed sensor locate ...


4

5
Mahmoud Farhadiroushan, Daniel Finfer, Dmitry Strusevich, Sergey Shatalin, Tom Parker: Non-isotropic acoustic cable. Silixa, Honigman Miller Schwartz and Cohn, November 21, 2017: US09823114

Embodiments of the present invention address aliasing problems by providing a plurality of discrete acoustic sensors along a cable whereby acoustic signals may be measured in situations where the fiber optic cable has not been secured to a structure or area by a series of clamps, as described in the ...


6
Mahmoud Farhadiroushan, Tom Parker: Method and system for determining downhole optical fiber orientation and/or location. Silixa, Honigman Miller Schwartz and Cohn, January 8, 2019: US10175384

A probe is provided that contacts the inner surface of the casing or other production tubing and imparts energy to the surface at the contact point, for example as heat energy or mechanical energy. Energy is imparted around the circumference of the casing, and a fiber optic distributed sensor locate ...


7
Mahmoud Farhadiroushan, Tom Parker, Kamil Yousif: Method and system for locating an acoustic source. Silixa, Osha Liang, May 29, 2018: US09983293

A method and a system are provided, in which acoustic signals received by distributed acoustic sensors are processed in order to determine the position of a source or sources of the acoustic signals. The method and system are able to determine the position of several acoustic sources simultaneously, ...


8
Mahmoud Farhadiroushan, Tom Parker, Daniel Finfer, Veronique Mahue: Acoustic illumination for flow-monitoring. Silixa, Honigman Miller Schwartz and Cohn, Matthew H Szalach, Jonathan P O Brien, February 20, 2018: US09896929

Externally generated noise can be coupled into a fluid carrying structure such as a pipe, well, or borehole so as to artificially acoustically “illuminate” the pipe, well, or borehole, and allow fluid flow in the structure or structural integrity to be determined. In the disclosed system, externally ...


9
ANDREW CLARKE , DANIEL FINFER , VERONIQUE MAHUE , TOM PARKER , MAHMOUD FARHADIROUSHAN : [en] Submersible pump monitoring. SILIXA  , November 16, 2016: GB2538439-A

[en] In order to address the above noted problems, embodiments of the present invention use distributed acoustic sensing to monitor the fluid level in an ESP activated well so as to monitor the condition and performance of the ESP. Embodiments of the invention use the ESP as an acoustic source in or ...


10
MAHMOUD FARHADIROUSHAN , TOM PARKER , SERGEY SHATALIN : [en] Improved sensitivity optical fiber sensing systems. SILIXA  , August 2, 2017: GB2546717-A

[en] Processing module 70 outputs signals into multiple optical fibre cores 76, the signals propagating simultaneously along the cores. Module 70 receives backscattered or reflected signals from the cores, and determines external conditions such as acoustic or thermal energy input. A 1×n coupler 78 ...