Patents by Inventor Ahmad Mohammad
Ahmad Mohammad has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20190309579Abstract: A wellbore drill bit assembly includes a drill bit that includes a drilling fluid pathway that has an inlet fluidly connected to a drilling fluid entrance of the drill bit and an outlet fluidly connected to a drilling fluid exit of the drill bit; and a nozzle positioned in the drilling fluid pathway, where at least a portion of the nozzle includes a removable material configured to dissolve or erode in contact with a drilling fluid additive.Type: ApplicationFiled: April 18, 2019Publication date: October 10, 2019Inventor: Ahmad Mohammad Al-AbdulJabbar
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Publication number: 20190264527Abstract: A wellbore liner-hanger tie-back system includes a bore receptacle coupled with a liner hanger at a downhole end of the bore receptacle, where the liner hanger is configured to be positioned in a wellbore, a tieback casing configured to be disposed in the wellbore, where a portion of an outer surface of the tieback casing is disposed proximate to an inner surface of the bore receptacle, and a seal system including at least one swellable seal. The seal system is disposed between the tieback casing and the bore receptacle to seal a space between the portion of the outer surface of the tieback casing and the inner surface of the bore receptacle.Type: ApplicationFiled: May 15, 2019Publication date: August 29, 2019Inventors: Ahmad Mohammad Al-AbdulJabbar, Kamal Eldarovic Aghazada
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Publication number: 20190264528Abstract: A wellbore liner-hanger tie-back system includes a bore receptacle coupled with a liner hanger at a downhole end of the bore receptacle, where the liner hanger is configured to be positioned in a wellbore, a tieback casing configured to be disposed in the wellbore, where a portion of an outer surface of the tieback casing is disposed proximate to an inner surface of the bore receptacle, and a seal system including at least one swellable seal. The seal system is disposed between the tieback casing and the bore receptacle to seal a space between the portion of the outer surface of the tieback casing and the inner surface of the bore receptacle.Type: ApplicationFiled: May 15, 2019Publication date: August 29, 2019Inventors: Ahmad Mohammad Al-AbdulJabbar, Kamal Eldarovic Aghazada
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Patent number: 10358888Abstract: A wellbore liner-hanger tie-back system includes a bore receptacle coupled with a liner hanger at a downhole end of the bore receptacle, where the liner hanger is configured to be positioned in a wellbore, a tieback casing configured to be disposed in the wellbore, where a portion of an outer surface of the tieback casing is disposed proximate to an inner surface of the bore receptacle, and a seal system including at least one swellable seal. The seal system is disposed between the tieback casing and the bore receptacle to seal a space between the portion of the outer surface of the tieback casing and the inner surface of the bore receptacle.Type: GrantFiled: June 8, 2017Date of Patent: July 23, 2019Assignee: Saudi Arabian Oil CompanyInventors: Ahmad Mohammad Al-AbdulJabbar, Kamal Eldarovic Aghazada
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Patent number: 10323464Abstract: A wellbore drill bit assembly includes a drill bit that includes a drilling fluid pathway that has an inlet fluidly connected to a drilling fluid entrance of the drill bit and an outlet fluidly connected to a drilling fluid exit of the drill bit; and a nozzle positioned in the drilling fluid pathway, where at least a portion of the nozzle includes a removable material configured to dissolve or erode in contact with a drilling fluid additive.Type: GrantFiled: April 4, 2018Date of Patent: June 18, 2019Assignee: Saudi Arabian Oil CompanyInventor: Ahmad Mohammad Al-AbdulJabbar
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Patent number: 10181774Abstract: An electric motor assembly includes an electric motor, a casing configured to house the motor, and an electrical enclosure coupled to the motor casing. The electrical enclosure houses a control board including a microcontroller and a memory device therein. The microcontroller is configured to control the electric motor based at least in part on motor configuration data stored in the memory device. The assembly also includes a near field communications (NFC) antenna positioned adjacent to an opening defined in the motor casing or the electronics enclosure, and is communicatively coupled to the memory device. The NFC antenna is configured to: receive a radio signal transmitted by an external programming device, the radio signal including updated motor configuration data; convert the radio signal to an electrical signal that includes the updated motor configuration data; and transmit the electrical signal to the memory device to store the updated motor configuration data.Type: GrantFiled: April 6, 2016Date of Patent: January 15, 2019Assignee: Regal Beloit America, Inc.Inventors: Shailesh Prabhakar Waikar, Kamron Mark Wright, Ahmad Mohammad Ghannam, Ryan Keith Stephens, Steven Albert Nardin, Xiaohui Ji, Peter Bruff Lytle
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Publication number: 20180355693Abstract: A wellbore liner-hanger tie-back system includes a bore receptacle coupled with a liner hanger at a downhole end of the bore receptacle, where the liner hanger is configured to be positioned in a wellbore, a tieback casing configured to be disposed in the wellbore, where a portion of an outer surface of the tieback casing is disposed proximate to an inner surface of the bore receptacle, and a seal system including at least one swellable seal. The seal system is disposed between the tieback casing and the bore receptacle to seal a space between the portion of the outer surface of the tieback casing and the inner surface of the bore receptacle.Type: ApplicationFiled: June 8, 2017Publication date: December 13, 2018Inventors: Ahmad Mohammad Al-AbdulJabbar, Kamal Eldarovic Aghazada
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Publication number: 20170294825Abstract: An electric motor assembly includes an electric motor, a casing configured to house the motor, and an electrical enclosure coupled to the motor casing. The electrical enclosure houses a control board including a microcontroller and a memory device therein. The microcontroller is configured to control the electric motor based at least in part on motor configuration data stored in the memory device. The assembly also includes a near field communications (NFC) antenna positioned adjacent to an opening defined in the motor casing or the electronics enclosure, and is communicatively coupled to the memory device. The NFC antenna is configured to: receive a radio signal transmitted by an external programming device, the radio signal including updated motor configuration data; convert the radio signal to an electrical signal that includes the updated motor configuration data; and transmit the electrical signal to the memory device to store the updated motor configuration data.Type: ApplicationFiled: April 6, 2016Publication date: October 12, 2017Inventors: SHAILESH PRABHAKAR WAIKAR, Kamron Mark Wright, Ahmad Mohammad Ghannam, Ryan Keith Stephens, Steven Albert Nardin, Xiaohui Ji, Peter Bruff Lytle
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Publication number: 20160340187Abstract: The steam methane reforming reactor includes a substantially cylindrical housing or shell and a tube disposed concentrically within the substantially cylindrical shell. The tube includes one or more catalysts. A hydrogen selective membrane extends through a central portion of the tube. The hydrogen selective membrane can be formed from a hydrogen selective material such as a palladium alloy. The membrane defines a central passage or permeate zone. A feed zone including the catalyst extends around the permeate zone. A sweep gas, such as air, nitrogen or the like, may be injected in the permeate zone, via an inlet, and pass through the permeate zone, exiting via an outlet. An annular heated fluid passage is defined between an outer surface of the tube and an inner surface of the substantially cylindrical housing or shell. A heating medium may be injected into the heated fluid passage to pass therethrough.Type: ApplicationFiled: May 18, 2015Publication date: November 24, 2016Inventors: SYED AHMAD MOHAMMAD SAID, ESMAIL MOHAMED ALI MOKHEIMER, SHAKEEL AHMED, MOHAMMED WASEEUDDIN
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Publication number: 20160135205Abstract: A method for accessing a Wi-Fi network from user equipment (UE) using a preferred access point (AP) when more than one AP is available is provided. RSSI included in received responses to scanning from the US and past connectivity data associated with the APs are used to generate a preferred list of APs from which an AP for connecting or switching to is selected.Type: ApplicationFiled: January 18, 2016Publication date: May 12, 2016Inventors: Ion BARBU, Krishna Kumar BAKTHAVATHSALU, Ahmad Mohammad Mohammad KHOLAIF, Nayef Fawaz MENDAHAWI
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Patent number: 9050160Abstract: The dental flossing device has an elongate handle with a removable and disposable floss holder at its distal end. A slide is installed along the handle, with the slide reciprocating axially along the handle when manipulated by a user of the device. The slide operates a flexible cable that in turn reciprocates the floss holder orthogonally relative to the elongate axis of the handle. Upper and lower bite pads are installed upon the distal end of the handle, with the user of the device gripping the pads, and thus the distal end of the device, between the teeth. The floss extending across the floss holder is then reciprocated between adjacent teeth by operating the slide on the handle. The device can also include a timer and alarm to notify the user of the appropriate time to be spent flossing, and to remind the user to floss daily.Type: GrantFiled: October 28, 2014Date of Patent: June 9, 2015Inventor: Ahmad Mohammad Hussain Alali
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Patent number: 9030985Abstract: A wireless communications device stores a first cryptographic key in connection with a profile, the profile indicating a security type requiring no credentials and a network name. An access point (AP) supports a wireless local area network (WLAN), the WLAN having the network name, the WLAN supporting the security type and the WLAN requiring a second cryptographic key for encryption. The wireless communications device successfully authenticates and associates with the AP, thus joining the WLAN. Subsequent to joining the WLAN, the wireless communications device conducts encrypted communications with the AP and detects from the encrypted communications that there is a mismatch between the first cryptographic key and the second cryptographic key. Responsive to detecting the mismatch, the wireless communications device bans the profile or the AP or both.Type: GrantFiled: March 22, 2013Date of Patent: May 12, 2015Assignee: BlackBerry LimitedInventors: Ahmad Mohammad Mohammad Kholaif, Ion Barbu, Nayef Fawaz Mendahawi, Krishna Kumar Bakthavathsalu
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Patent number: 8881238Abstract: In the event of an authentication process failure, a mobile station bans a connection profile storing the credentials provided by the mobile station when initiating the failed authentication process, thus affecting how subsequent scans—other than discovery scans—and connection attempts are handled. In the event of an authentication process failure, a mobile station bans or suppresses an access point with which the mobile station initiated the failed authentication process. The mobile station refrains from transmitting any communications addressed to the unique identifier of any banned access point. The mobile station may ignore any communications received from a banned access point. Suppressed access points are occasionally not made available to the mobile station for selection as a target for a connection attempt.Type: GrantFiled: January 30, 2014Date of Patent: November 4, 2014Assignee: BlackBerry LimitedInventors: Ahmad Mohammad Mohammad Kholaif, Ion Barbu, Krishna Kumar Bakthavathsalu, Nayef Fawaz Mendahawi, Denis Fedotenko
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Patent number: 8874177Abstract: A system and method of reducing the WLAN power consumption and limiting battery drain of a mobile communications device is provided. The mechanism continuously monitors for changes in the WLAN and cellular signal strength and modifies the WLAN profile scanning activity accordingly. By monitoring for changes, transitions can be detected which indicate the location of the mobile device (i.e., indoor or outdoor). An increase in cellular signal strength and a decrease in WLAN signal strength indicates the user is transitioning outdoors where WLAN coverage may be limited. To reduce battery power consumption, background scanning is suspended or its frequency significantly lowered. Moving indoors is indicated by a decrease in cellular signal strength and an increase in WLAN signal strength. Background/Connectivity scanning frequency is increased to provide shorter time-to-connect to WLAN Networks for the user within the WLAN coverage area.Type: GrantFiled: February 1, 2013Date of Patent: October 28, 2014Assignee: BlackBerry LimitedInventors: Krishna Kumar Bakthavathsalu, Ion Barbu, Nayef Fawaz Mendahawi, Ahmad Mohammad Mohammad Kholaif
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Patent number: 8837513Abstract: A wireless client device associated with an access point records at which time T after a transmission time of a most recent beacon frame it gained access to the wireless medium for transmission of an uplink packet to the access point. The wireless client device self-schedules target transmission times for one or more future uplink packets, where each of the target transmission times is T after a respective expected transmission time of a beacon frame. Rather than immediately attempting to gain access to the wireless medium when it determines that another uplink packet is ready for transmission, the wireless client device waits until shortly before its next upcoming target transmission time to make the attempt. Implementation in wireless client devices that are attempting to transmit uplink packets to the same access point may prolong the amount of time they can remain in a doze state, potentially reducing their power consumption.Type: GrantFiled: September 4, 2012Date of Patent: September 16, 2014Assignee: BlackBerry LimitedInventor: Ahmad Mohammad Mohammad Kholaif
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Patent number: 8837509Abstract: Techniques in a mobile communication device for communicating with a wireless access point (AP) are described. The mobile device receives from the AP data which indicate a plurality of activated service intervals in the superframe that are made available to mobile devices for communication access. The mobile device attempts to access, during the indicated activated service intervals, a radio medium via the AP. The mobile device refrains from attempting to access the radio medium via the AP during each power conservation interval provided in between the indicated activated service intervals.Type: GrantFiled: May 2, 2012Date of Patent: September 16, 2014Assignee: McMaster UniversityInventors: Ahmad Mohammad Kholaif, Mohammed N. Smadi, Polychronis Koutsakis, Terence Douglas Todd
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Patent number: 8750245Abstract: Techniques in a mobile device for use in initiating vertical handover of a voice or a data call between a wireless local area network (WLAN) and a wide area wireless network (WWAN) are described. The mobile device performs communication operations for maintaining the voice or the data call via the WLAN or the WWAN. During the voice or the data call, the mobile device identifies a WLAN signal quality value of signals with the WLAN, as well as a WWAN signal quality value of signals with the WWAN. The mobile device then performs a comparative evaluation of the WLAN and the WWAN signal quality values, and initiates a vertical handover of the voice or the data call between the WLAN and the WWAN based on the comparative evaluation of the WLAN and WWAN signal quality values. The comparative evaluation may involve calculating a signal indicator value which is based on a ratio of the WLAN and the WWAN signal quality values.Type: GrantFiled: February 28, 2011Date of Patent: June 10, 2014Assignee: BlackBerry LimitedInventors: Krishna Kumar Bakthavathsalu, Ion Barbu, Nayef Fawaz Mendahawi, Ahmad Mohammad Kholaif
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Publication number: 20140148131Abstract: In the event of an authentication process failure, a mobile station bans a connection profile storing the credentials provided by the mobile station when initiating the failed authentication process, thus affecting how subsequent scans—other than discovery scans—and connection attempts are handled. In the event of an authentication process failure, a mobile station bans or suppresses an access point with which the mobile station initiated the failed authentication process. The mobile station refrains from transmitting any communications addressed to the unique identifier of any banned access point. The mobile station may ignore any communications received from a banned access point. Suppressed access points are occasionally not made available to the mobile station for selection as a target for a connection attempt.Type: ApplicationFiled: January 30, 2014Publication date: May 29, 2014Applicant: BLACKBERRY LIMITEDInventors: Ahmad Mohammad Mohammad Kholaif, Ion Barbu, Krishna Kumar Bakthavathsalu, Nayef Fawaz Mendahawi, Denis Fedotenko
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Patent number: 8724603Abstract: A method for network access and a mobile station configured for the same is described. In one embodiment, there is provided a method for network access on a mobile station comprising: scanning for Wi-Fi networks; receiving responses from available wireless access points (APs) of the Wi-Fi networks; selecting a Wi-Fi network in accordance with past connectivity data associated with the Wi-Fi networks of the available APs; and attempting to connect to the selected Wi-Fi network.Type: GrantFiled: March 8, 2011Date of Patent: May 13, 2014Assignee: BlackBerry LimitedInventors: Ion Barbu, Krishna Kumar Bakthavathsalu, Ahmad Mohammad Mohammad Kholaif, Nayef Fawaz Mendahawi
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Patent number: 8699379Abstract: A target access point is selected from the results of a discovery scan so that a mobile station can attempt a connection with the target access point. The mobile station determines whether the target access point belongs to a small office/home office (SOHO)-type wireless local area network (WLAN) deployment or to a corporate/enterprise-type WLAN deployment. The mobile station then configures itself according to the determination of the type of WLAN deployment to which the target access point belongs.Type: GrantFiled: April 8, 2011Date of Patent: April 15, 2014Assignee: BlackBerry LimitedInventors: Ahmad Mohammad Mohammad Kholaif, Nayef Fawaz Mendahawi, Ion Barbu, Krishna Kumar Bakthavathsalu