Patents by Inventor Mohammad Ahmed

Mohammad Ahmed 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).

  • Publication number: 20250059113
    Abstract: A process for separating 1-butene from a C4 raffinate gas composition includes introducing the C4 raffinate gas composition to a reactor containing an adsorbent material and passing the C4 raffinate gas composition through the adsorbent material; adsorbing the 1-butene from the C4 raffinate gas composition onto the adsorbent material to separate the 1-butene from the C4 raffinate gas composition and form a residue gas composition; and desorbing the 1-butene by heating the adsorbent material after the adsorbing to form the 1-butene and regenerate the adsorbent material. The adsorbent material is at least one of a zeolite adsorbent and an alkali-modified zeolite adsorbent having at least 99% by weight selective towards 1-butene for adsorption in comparison to iso-butene and iso-butane.
    Type: Application
    Filed: August 14, 2023
    Publication date: February 20, 2025
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Hassan S. ALASIRI, Ziyauddin S. QURESHI, Faizur RAHMAN, Uwais BADURUTHAMAL, Mohammad Ahmed AL-YAMI
  • Publication number: 20220064022
    Abstract: A system for desalination of salt water, the system including a crude oil refinery or hydrocarbon refinery, the crude oil refinery or hydrocarbon refinery including a furnace operable to produce a hot flue gas. The furnace including a radiant section, a convection section located above the radiant section, a flue gas stack located above the convection section, a heating coil located in a flow path of a flue gas in the flue gas stack such that the flue gas is capable of increasing a temperature of a water stream, thereby converting at least a portion of the water into steam, and a multi effect desalination plant configured for using the steam to produce a desalinated water.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 3, 2022
    Applicant: SAUDI ARABIAN OIL COMPANY
    Inventors: Ali Homoud Hassan Alshehri, Mohammad Ahmed Alsuwailmi, Abdullah A. Alraddadi, Basmah Hasan Hassan Al-Ahmadi, Ahmed Hussain Al-Eid, Nasser Sarhan Albishi
  • Publication number: 20220017436
    Abstract: Systems and methods for separating a mixture of olefinic and paraffinic C4 components are disclosed. The systems and methods include adsorptive equipment and adsorptive processes for separating components from the mixture.
    Type: Application
    Filed: December 17, 2019
    Publication date: January 20, 2022
    Applicant: SABIC Global Technologies B.V.
    Inventors: Mohammed ALDOSSARY, Mohammed Nadim SHAIK, Khalid A. AL-MAJNOUNI, Ahmed ALZENAIDI, Faizur RAHMAN, Arudra PALANI, Sachio ASAOKA, Mohammad Ahmed AL-YAMI, Uwais BADURUTHAMAL
  • Publication number: 20210286394
    Abstract: A current reference circuit with one or more current mirror devices having dynamic body biasing includes a voltage-to-current converter circuit having a feedback loop that includes an operational amplifier, an NMOS device, and a resistor to generate a reference current; a current mirror circuit, including one or more current mirror devices with source degeneration, to produce one or more output currents that are copies of the reference current; and a body-biasing stage including an active N-well to dynamically set a body-biasing voltage for the one or more current mirror devices.
    Type: Application
    Filed: March 14, 2020
    Publication date: September 16, 2021
    Applicant: Vidatronic, Inc.
    Inventors: Mohammad Ahmed RADWAN, Anand Veeravalli RAGHUPATHY, Michael A NIX
  • Patent number: 10958162
    Abstract: A dual loop regulated switched-capacitor converter circuit includes a switched capacitor array that includes a plurality of switches and capacitors; a digital controller for controlling the switched capacitor array; a pulse modulator connected to the digital controller; a clock generator connected to the digital controller; a first comparator connected to the pulse modulator; and a feedback network connected to the first comparator.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: March 23, 2021
    Assignee: Vidatronic, Inc.
    Inventors: Sameh Assem Ibrahim, Mohammad Ahmed Radwan, Michael A Nix
  • Patent number: 9447889
    Abstract: A valve isolation tool for insertion through a vent duct and vent duct valve of a gas flow duct. The isolation tool includes an outer tube having proximal and distal ends, the outer tube having a diameter sized to extend through the vent duct and blocking valve. An inner tube having proximal and distal ends is arranged coaxially with and movable within the outer tube. An inflatable balloon is attached to the distal end of the inner tube, wherein the isolation tool outer tube is insertable through the vent duct to an opening in the gas flow duct. The inner tube is slidably insertable through the outer tube until the balloon is situated within a bore formed through the gas flow duct and is inflatable therein to block any gas leak through the gas flow duct.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: September 20, 2016
    Assignee: Saudi Arabian Oil Company
    Inventor: Mohammad Ahmed Al Shammary
  • Patent number: 9181522
    Abstract: The present application discloses a novel biological material transfer apparatus and methods of using the same. The apparatus is made up of double walled barrel shaped tip chamber to house either the single tip or multiple tips of fixed size and a unique ball head to transfer the biological material from one location to another location in an aseptic method. The tip has a fixed shape and size and a ball head which makes the process of picking and transferring of biological material easy, safe and convenient to use with large scale samples. The apparatus is further equipped with an ultra violet light which sterilize the tips just before their use making the entire process of transferring of biological material highly aseptic.
    Type: Grant
    Filed: March 23, 2013
    Date of Patent: November 10, 2015
    Assignee: King Abdulaziz City for Science and Technology (KACST)
    Inventor: Mohammad Ahmed Khiyami
  • Publication number: 20140366976
    Abstract: A valve isolation tool for insertion through a vent duct and vent duct valve of a gas flow duct. The isolation tool includes an outer tube having proximal and distal ends, the outer tube having a diameter sized to extend through the vent duct and blocking valve. An inner tube having proximal and distal ends is arranged coaxially with and movable within the outer tube. An inflatable balloon is attached to the distal end of the inner tube, wherein the isolation tool outer tube is insertable through the vent duct to an opening in the gas flow duct. The inner tube is slidably insertable through the outer tube until the balloon is situated within a bore formed through the gas flow duct and is inflatable therein to block any gas leak through the gas flow duct.
    Type: Application
    Filed: August 11, 2014
    Publication date: December 18, 2014
    Inventor: Mohammad Ahmed AL SHAMMARY
  • Publication number: 20140287482
    Abstract: The present application discloses a novel biological material transfer apparatus and methods of using the same. The apparatus is made up of double walled barrel shaped tip chamber to house either the single tip or multiple tips of fixed size and a unique ball head to transfer the biological material from one location to another location in an aseptic method. The tip has a fixed shape and size and a ball head which makes the process of picking and transferring of biological material easy, safe and convenient to use with large scale samples. The apparatus is further equipped with an ultra violet light which sterilize the tips just before their use making the entire process of transferring of biological material highly aseptic.
    Type: Application
    Filed: March 23, 2013
    Publication date: September 25, 2014
    Applicant: King Abdulaziz City for Science and Technology (KACST)
    Inventor: MOHAMMAD AHMED KHIYAMI
  • Publication number: 20140227768
    Abstract: The present application discloses a novel microbiological apparatus and methods of using the same. The apparatus is a rolling pen comprising of a socket and a ball with its unique rolling head to transfer a biological material from a first location to a second location in an aseptic manner. Further, the rolling pen apparatus can be used with a pen holder device or with a holder hand device to transfer the biological material a first location to a second location and further to develop a microbiological colony. The invention also discloses the use of rolling pen apparatus attached to a holder hand device in propagating a single biological colony such as bacterial colony or cells.
    Type: Application
    Filed: December 2, 2013
    Publication date: August 14, 2014
    Applicant: King Abdulaziz City for Science and Technology (KACST)
    Inventor: MOHAMMAD AHMED KHIYAMI
  • Patent number: 8800602
    Abstract: A leaking block valve isolation tool for insertion through a vent duct and blocking valve of a gas flow duct. The isolation tool includes an outer tube having proximal and distal ends, the outer tube having a diameter sized to extend through the vent duct and blocking valve. An inner tube having proximal and distal ends is arranged coaxially with and movable within the outer tube. An inflatable balloon is attached to the distal end of the inner tube, wherein the isolation tool outer tube is insertable through the vent duct to an opening in the gas flow duct. The inner tube is slidably insertable through the outer tube until the balloon is situated within a bore formed through the gas flow duct and is inflatable therein to block any gas leak through the gas flow duct.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: August 12, 2014
    Assignee: Saudi Arabian Oil Company
    Inventor: Mohammad Ahmed Al Shammary
  • Publication number: 20140188025
    Abstract: This invention is directed to an easy-to-use, convenient, and economical device and method for treating musculoskeletal and joint pain using acupuncture principles. An embodiment of the invention provides a compression support garment with an inner and outer surface, the garment being designed to be worn over a part of a person's body such that the inner surface covers at least an area of the part of the body experiencing pain, and wherein a plurality of beads are embedded into the inner surface of the garment at designated areas, the beads being capable of applying pressure to and stimulating acupuncture points on the connective tissue of the at least an area of a part of the body in contact with the beads according to traditional acupressure principles. Another embodiment discloses a method for treating pain that includes wearing a compression support garment with embedded acupuncture beads.
    Type: Application
    Filed: December 30, 2012
    Publication date: July 3, 2014
    Inventor: Mohammad Ahmed Aziz
  • Patent number: 8691521
    Abstract: A novel biological material excavator apparatus is described in the current invention. The apparatus is made up of a double walled tubular structure to house either a single tip or multiple tips to pick/excavate the biological material growing in agar plated petri dishes. The unique feature of this apparatus is a local ultra violet light source is present inside the apparatus to perform irradiation on site. This provides double sterilization of the apparatus as well as the tip that is being used for transferring biological material from one source to another source. The apparatus is double walled to prevent the user from being exposed to ultra violet rays while the irradiation step is being performed.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: April 8, 2014
    Assignee: King Abdulaziz City for Science and Technology (KACST)
    Inventor: Mohammad Ahmed Khiyami
  • Patent number: 8513955
    Abstract: A lighting assembly includes a lighting module labeled with an indicator. The lighting module indicator is indicative of electrical capacities of the lighting module. A driver is provided to power the lighting module. The driver is labeled with an indicator indicative of electrical capacities of the driver. The lighting module indicator and the driver indicator are compared to determine whether the driver has electrical capacities that enable the driver to power the lighting module. A cable electrically couples the driver and the lighting module. The cable has an indicator indicative of electrical capacities of the cable. The cable indicator is compared to the driver indicators and the lighting module indicator to determine whether the cable has electrical capacities that enable the cable to convey power from the driver to the lighting module.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: August 20, 2013
    Assignee: Tyco Electronics Corporation
    Inventors: Robert D. Rix, Stephen Jackson, Mohammad Ahmed, Gerald Wingle, Jr., Dean Perronne, Barbara Grzegorzewska
  • Publication number: 20120074875
    Abstract: A lighting assembly includes a lighting module labeled with an indicator. The lighting module indicator is indicative of electrical capacities of the lighting module. A driver is provided to power the lighting module. The driver is labeled with an indicator indicative of electrical capacities of the driver. The lighting module indicator and the driver indicator are compared to determine whether the driver has electrical capacities that enable the driver to power the lighting module. A cable electrically couples the driver and the lighting module. The cable has an indicator indicative of electrical capacities of the cable. The cable indicator is compared to the driver indicators and the lighting module indicator to determine whether the cable has electrical capacities that enable the cable to convey power from the driver to the lighting module.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 29, 2012
    Applicant: TYCO ELECTRONICS CORPORATION
    Inventors: ROBERT D. RIX, STEPHEN JACKSON, MOHAMMAD AHMED, GERALD WINGLE, JR., DEAN PERRONNE, BARBARA GRZEGORZEWSKA
  • Patent number: 7733793
    Abstract: A method for suppressing data is provided that includes receiving a first packet communicated by an end user and identifying a difference in a comfort noise level associated with a second packet received as compared to the first packet. The second packet may be communicated without a data payload in cases where the difference in comfort noise level associated with the second packet as compared to the first packet is below a predetermined threshold.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: June 8, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Alain Charles Brainos, II, Mohammad A. Ahmed-Khan, Malcolm M. Smith
  • Publication number: 20090128058
    Abstract: A current shut-off overload protection circuit useful for fluorescent lamp ballast protection and the like has at least one power transistor for supplying a load current to a circuit load, a protection circuit comprising a current sensing resistance connected for developing a voltage drop related to the circuit load, and a switching diode having a control input operative for turning off the power transistor by removing a bias level, as by grounding the transistor base, responsive to a preset level of the voltage drop such that the load current to the load is switched off upon the load current exceeding a maximum acceptable load current represented by a preset level of the voltage drop.
    Type: Application
    Filed: November 12, 2008
    Publication date: May 21, 2009
    Inventors: Zahir Mohammad Ahmed, Chen Hongcheng
  • Patent number: 6813634
    Abstract: An enhancement to computer network maintenance technology which reduces redundant and inaccurate fault reporting and alerting based upon implementation of logic which determines the most likely single point of failure. In modern computer and telephone networks, certain single points of failure result in the false appearance of multiple failures. However, by analyzing the pattern of apparent failures in view of the known network topology, a single point of failure can be determined as the root cause of the multiple failure indications. An enhancement to the currently-available network maintenance technology, including software applications executing on network server platforms, provides this fault determination logic, filters spurious and incorrect failure reports, and posts failure reports only for the single point failure.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: November 2, 2004
    Assignee: International Business Machines Corporation
    Inventor: Mohammad Ahmed