Patents by Inventor Zulfiqar A. Khan
Zulfiqar A. 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).
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Publication number: 20230119856Abstract: A thermally conductive electromagnetically absorbing material includes a plurality of particles dispersed in a binder. The plurality of particles can have a particle size distribution having at least three peaks, where at least a majority of particles within a half width at half maximum of one, but not the other ones, of the at least three peaks are at least partially coated with an electromagnetically absorbing coating. The plurality of particles can include pluralities of first and second particles where a total number of the first particles is at most 1% of a total number of the first and second particles and where the first particles are more electromagnetically absorbing than the second particles. Films, molded articles and systems including the thermally conductive electromagnetically absorbing material are described.Type: ApplicationFiled: March 23, 2021Publication date: April 20, 2023Inventors: Zhonghua Lu, Badri Veeraraghavan, Joel S. Peiffer, Jeffrey A. Tostenrude, Jaewon Kim, Zulfiqar A. Khan, Jennifer J. Sokol
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Publication number: 20210171816Abstract: A working fluid for use in a heat transfer system, for example of the type used to transfer heat in a heat engine. The working fluid comprises a plurality of nano-particles suspended in a base fluid so as to improve a heat transfer property of the base fluid. Ideally the nano-particles are suspended in the base fluid in a colloidal suspension. A system for manufacturing a nano-fluid is also described. The system includes a plurality of hoppers for containing types of nano-particle and a reservoir that contains a base fluid. A control means controls valves on the hoppers and on the reservoir in order to dispense working fluid and defined amounts of nano-particles into a mixer tank. A mixer mixes the nano-particles with the base fluid to produce a nano-fluid which is in colloidal suspension in the working fluid.Type: ApplicationFiled: November 30, 2018Publication date: June 10, 2021Applicant: FUTURE ENERGY SOURCE LIMITEDInventor: Zulfiqar KHAN
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Publication number: 20200329593Abstract: Electromagnetic interference (EMI) shields are provided to be placed on and cover an electronic component. The EMI shields at least partially surround the electronic component, and include an undulated edge. In some cases, an EMI absorbing material is placed along the undulated edge.Type: ApplicationFiled: June 27, 2017Publication date: October 15, 2020Inventor: Zulfiqar A. Khan
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Patent number: 9894750Abstract: The disclosure generally relates to shielded transmission lines, electrical systems including the shielded transmission lines, cables using shielded transmission lines, and electrical connectors using shielded transmission lines. In particular, the present disclosure provides transmission lines that include floating shields capable of isolating interference between conductors that can result in reduced crosstalk.Type: GrantFiled: December 5, 2013Date of Patent: February 13, 2018Assignee: 3M Innovative Properties CompanyInventors: Zulfiqar A. Khan, Alexander W. Barr, Alexander R. Mathews
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Publication number: 20170250726Abstract: A wireless connector is disclosed that includes a first communication device configured to wirelessly transmit, by radiative coupling, a modulated signal including a carrier signal modulated with a digital signal. The wireless connector also includes a second communication device configured to receive the modulated signal. The first and second communication devices are coupled to one another through at least one wired connection that carries a signal used to demodulate the modulated signal.Type: ApplicationFiled: May 11, 2017Publication date: August 31, 2017Inventors: Douglas B. Gundel, Zulfiqar A. Khan, Alexander W. Barr, Steven A. Neu
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Patent number: 9692476Abstract: A wireless connector includes a plurality of printed circuit boards (PCBs) (901, 902) disposed within a housing of the electronic system. Each PCB comprises a plurality of transceivers (910a, 910b, 920a, 920b) configured to wirelessly transmit and receive modulated carrier signals (910, 920). Each transceiver in the system is configured to receive signals transmitted by every other transceiver in the system.Type: GrantFiled: April 4, 2013Date of Patent: June 27, 2017Assignee: 3M Innovative Properties CompanyInventors: Douglas B. Gundel, Zulfiqar A. Khan, Alexander W. Barr, Steven A. Neu
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Publication number: 20150327357Abstract: The disclosure generally relates to shielded transmission lines, electrical systems including the shielded transmission lines, cables using shielded transmission lines, and electrical connectors using shielded transmission lines. In particular, the present disclosure provides transmission lines that include floating shields capable of isolating interference between conductors that can result in reduced crosstalk.Type: ApplicationFiled: December 5, 2013Publication date: November 12, 2015Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Zulfiqar A. Khan, Alexander W. Barr, Alexander R. Mathews
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Publication number: 20150185425Abstract: Wireless connectors and communication systems are described including a first communication device configured to emit a modulated signal, a second communication device configured to receive the emitted modulated signal and a waveguide disposed between the first and second communication devices and configured to wirelessly receive the emitted modulated signal from a first end of the waveguide, guide the received signal from the first end to an opposite second end of the waveguide, and wirelessly transmit the guided signal from the second end to the second communication device. In some embodiments, the telescopic waveguide includes a plurality of guiding sections, each guiding section being configured to slide within or over an adjacent guiding section inwardly to reduce a length of the telescopic waveguide and outwardly to increase the length of the telescopic waveguide.Type: ApplicationFiled: July 2, 2013Publication date: July 2, 2015Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Douglas B. Gundel, Zulfiqar A. Khan, Alexander W. Barr
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Publication number: 20150085903Abstract: A wireless connector includes a plurality of printed circuit boards (PCBs) (901, 902) disposed within a housing of the electronic system. Each PCB comprises a plurality of transceivers (910a, 910b, 920a, 920b) configured to wirelessly transmit and receive modulated carrier signals (910, 920). Each transceiver in the system is configured to receive signals transmitted by every other transceiver in the system.Type: ApplicationFiled: April 4, 2013Publication date: March 26, 2015Inventors: Douglas B. Gundel, Zulfiqar A. Khan, Alexander W. Barr, Steven A. Neu
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Publication number: 20130236683Abstract: There is disclosed herein various floor coverings and methods for making the same. In one embodiment, there is disclosed a floor covering including a primary backing layer having a fibrous face and an underside, wherein the fibrous face is formed from a bulked continuous filament yam comprising a plurality of continuous filaments formed from a biobased polyhexamethylene sebacamide polymer or a blend of a biobased polyhexamethylene sebacamide polymer together with up to 80 wt % of at least one other polymer compatible with the biobased polyhexamethylene sebacamide polymer.Type: ApplicationFiled: December 17, 2012Publication date: September 12, 2013Applicant: INTERFACE AUST PTY. LTD.Inventors: Zulfiqar A. Khan, Michael L. Boyd
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Publication number: 20130231454Abstract: There is disclosed herein a multicomponent fibrous assembly comprising a plurality of continuous filaments formed from a biobased polyhexamethylene sebacamide polymer or a blend of a biobased polyhexamethylene sebacamide polymer together with up to 80 wt % of at least one other polymer compatible with the biobased polyhexamethylene sebacamide polymer. There is also disclosed a process for preparing a biobased polyhexamethylene sebacamide bulked continuous filament (BCF) yarn comprising melt-spinning a polymer melt containing polyhexamethylene sebacamide polymer or a blend of a biobased polyhexamethylene sebacamide polymer together with up to 80 wt % of at least one other polymer compatible with the biobased polyhexamethylene sebacamide polymer to form at least one filament, passing the at least one filament to a drawing stage where the filament is drawn and lengthened to produce a yarn, followed by texturing the yarn.Type: ApplicationFiled: December 17, 2012Publication date: September 5, 2013Applicants: Universal Fibers, Inc., INTERFACE AUST PTY. LTD.Inventors: Larry A. Kestner, Zulfiqar A. Khan