Patents by Inventor Rizwan Khan

Rizwan Khan 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: 20260246148
    Abstract: An antenna includes a printed circuit board and an omnidirectional, multiband dipole antenna printed on a surface of the printed circuit board. The antenna may include one or more planar choke sleeves printed on the surface of the printed circuit board. The dipole antenna may be a triband antenna or a quadband antenna operable in the 2.4 GHz Wifi band, the 5 GHz Wifi band, and the 6 GHz Wifi band.
    Type: Application
    Filed: May 27, 2025
    Publication date: August 20, 2026
    Inventors: Rizwan KHAN, KokJiunn NG, Enchi LEE, Chin Shen TAN
  • Publication number: 20260142374
    Abstract: An ultra-wideband (UWB) antenna includes a substrate having a first surface and a second surface. The UWB antenna includes a radiating patch at the first surface. The UWB antenna includes parasitic elements at the first surface adjacent the radiating patch and an antenna ground at the second surface. The UWB antenna includes shorting pins between the radiating patch and the antenna ground. The UWB antenna has a wide beam angle greater than 120°. The UWB antenna covers the UWB channel 9 and/or channel 10 frequency band(s).
    Type: Application
    Filed: November 18, 2025
    Publication date: May 21, 2026
    Inventors: Rizwan KHAN, Wai Hau NG, KokJiunn NG
  • Publication number: 20260121297
    Abstract: A high gain multiple input, multiple output antenna which has a feeding board; a ground plane; a low band patch radiator; a first printed circuit board; a second printed circuit board; and a high band dipole patch radiator. The high band dipole patch radiator is a co-located stacked array on top of the low band patch radiator. The high band dipole patch radiator and the low band patch radiator are proximity coupled with the first printed circuit board and the second printed circuit board. The low band patch radiator covers low band frequencies in the range of 2.4 GHz to 2.5 GHZ and the high band dipole patch radiator cover high band frequencies in the range of 4.9 GHZ to 7.125 GHz. The antenna assembly has a gain of above 7.5 dBi and a well-directed radiation patten with no side lobes.
    Type: Application
    Filed: October 24, 2024
    Publication date: April 30, 2026
    Applicant: TE Connectivity Solutions GmbH
    Inventors: KokJiunn NG, Rizwan KHAN, Jay Franklin GILLETTE, Youngha CHOI
  • Patent number: 12516441
    Abstract: A method of fabricating synthetic diamond material using a microwave plasma activated chemical vapour deposition technique is provided which utilizes high and uniform microwave power densities applied over large areas and for extended periods of time. Products fabricated using such a synthesis technique are described including a single crystal CVD diamond layer which has a large area and a low nitrogen concentration, and a high purity, fast growth rate single crystal CVD diamond material.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: January 6, 2026
    Assignee: ELEMENT SIX TECHNOLOGIES LIMITED
    Inventors: Rizwan Khan, Steven Coe, Jonathan Wilman, Daniel Twitchen, Geoffrey Scarsbrook, John Brandon, Christopher Wort, Matthew Markham, Ian Friel, Katharine Robertson
  • Publication number: 20250350026
    Abstract: An antenna includes a radome having walls at a top, bottom, front, rear, first side, and second side forming a chamber that receives an antenna assembly. The antenna assembly includes a multiband antenna element and a reflector spaced from the antenna element and facing the antenna element. The multiband antenna element includes a high band antenna with high band radiating arms and a low band antenna with low band radiating arms. The reflector includes a main reflector panel, front and rear reflector wings, main sidewalls on opposite sides of the main reflector panel, front and rear sidewalls on opposite sides of the front and rear reflector wings, and forward and rearward inner walls at the interfaces of the main reflector panel and the front and rear reflector wings.
    Type: Application
    Filed: May 6, 2025
    Publication date: November 13, 2025
    Inventors: KokJiunn NG, Rizwan KHAN
  • Publication number: 20240339746
    Abstract: An antenna assembly includes a flexible whip antenna having a mounting connector, a cable coupled to the mounting connector, a bottom spring coil surrounding the cable and coupled to the mounting connector, an adaptor coupled to the cable, and a rod radiator coupled to the adaptor. The mounting connector is coupled to an antenna feed. The cable extends between a first end, terminated to the mounting connector, and a second end, terminated to the adaptor. The bottom spring coil concentrically surrounds the first end of the cable and is terminated to the mounting connector. The rod radiator extends between a first end, terminated to the adaptor, and a second end. The cable is flexible to move the rod radiator relative to the mounting connector.
    Type: Application
    Filed: April 3, 2024
    Publication date: October 10, 2024
    Inventors: Rizwan KHAN, Keanmeng LIM, KokJiunn NG, YenSiang TAN
  • Publication number: 20210395916
    Abstract: A method of fabricating synthetic diamond material using a microwave plasma activated chemical vapour deposition technique is provided which utilizes high and uniform microwave power densities applied over large areas and for extended periods of time. Products fabricated using such a synthesis technique are described including a single crystal CVD diamond layer which has a large area and a low nitrogen concentration, and a high purity, fast growth rate single crystal CVD diamond material.
    Type: Application
    Filed: August 20, 2021
    Publication date: December 23, 2021
    Applicant: ELEMENT SIX TECHNOLOGIES LIMITED
    Inventors: RIZWAN KHAN, STEVEN COE, JONATHAN WILMAN (DECEASED), DANIEL TWITCHEN, GEOFFREY SCARSBROOK, JOHN BRANDON, CHRISTOPHER WORT, MATTHEW MARKHAM, IAN FRIEL, KATHARINE ROBERTSON
  • Patent number: 10601640
    Abstract: An applied intelligence framework may receive log information descriptive of a cloud computing stack. The applied intelligence framework may generate a stack token. The stack token may include a computer resource node representative a computer resource of the cloud computing stack. The applied intelligence framework may access, from an ontology repository, a diagnosis instruction. The diagnosis instruction may determine a fault based on at least one of the log parameters. The applied intelligence framework may execute the diagnosis instruction to determine the fault. The applied intelligence framework may append, to the stack token, a fault node representative of the fault. The applied intelligence framework may query an ontology repository based on the stack token to identify a resolution identifier. The applied intelligence framework may append, to the stack token, a resolution node.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: March 24, 2020
    Assignee: ACCENTURE GLOBAL SOLUTIONS LIMITED
    Inventors: Jagaran Das, Rizwan Khan, Biju Radhakrishnan
  • Publication number: 20170009376
    Abstract: A method of fabricating synthetic diamond material using a microwave plasma activated chemical vapour deposition technique is provided which utilizes high and uniform microwave power densities applied over large areas and for extended periods of time. Products fabricated using such a synthesis technique are described including a single crystal CVD diamond layer which has a large area and a low nitrogen concentration, and a high purity, fast growth rate single crystal CVD diamond material.
    Type: Application
    Filed: November 18, 2014
    Publication date: January 12, 2017
    Applicant: ELEMENT SIX TECHNOLOGIES LIMITED
    Inventors: RIZWAN KHAN, STEVEN COE, JONATHAN WILMAN, DANIEL TWITCHEN, GEOFFREY SCARSBROOK, JOHN BRANDON, CHRISTOPHER WORT, MATTHEW MARKHAM, IAN FRIEL, KATHARINE ROBERTSON
  • Publication number: 20150112643
    Abstract: The invention provides a method of automating the classification of a diamond gemstone. An infra-red absorption spectrum of the gemstone is provided. Features corresponding to absorption by water and intrinsic absorption by a diamond lattice are subtracted from the absorption spectrum. The spectrum is analysed to identify predetermined absorption features corresponding to lattice defects in the diamond. The gemstone is classified according to the intensities of the predetermined absorption features. The results of the classification are saved in a database.
    Type: Application
    Filed: June 12, 2013
    Publication date: April 23, 2015
    Inventors: Rizwan Khan, Nicholas Matthew Davies, David Fisher, James Gordon Charters Smith