Patents by Inventor Moinuddin Ahmed

Moinuddin 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).

  • Patent number: 11493548
    Abstract: A method for predicting failure parameters of semiconductor devices can include receiving a set of data that includes (i) characteristics of a sample semiconductor device, and (ii) parameters characterizing a stress condition. The method further includes extracting a plurality of feature values from the set of data and inputting the plurality of feature values into a trained model executing on the one or more processors, wherein the trained model is configured according to an artificial intelligence (AI) algorithm based on a previous plurality of feature values, and wherein the trained model is operable to output a failure prediction based on the plurality of feature values. Further, the method includes generating, via the trained model, a predicted failure parameter of the sample semiconductor device due to the stress condition.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: November 8, 2022
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Moinuddin Ahmed, John N. Hryn, Christopher Stankus
  • Publication number: 20220065919
    Abstract: A method for predicting failure parameters of semiconductor devices can include receiving a set of data that includes (i) characteristics of a sample semiconductor device, and (ii) parameters characterizing a stress condition. The method further includes extracting a plurality of feature values from the set of data and inputting the plurality of feature values into a trained model executing on the one or more processors, wherein the trained model is configured according to an artificial intelligence (AI) algorithm based on a previous plurality of feature values, and wherein the trained model is operable to output a failure prediction based on the plurality of feature values. Further, the method includes generating, via the trained model, a predicted failure parameter of the sample semiconductor device due to the stress condition.
    Type: Application
    Filed: July 23, 2021
    Publication date: March 3, 2022
    Inventors: Moinuddin Ahmed, John N. Hryn, Christopher Stankus
  • Patent number: 10759776
    Abstract: The present disclosure generally relates to methods of preparing nicotine and resolving R,S nicotine to enrich the (S)(?) enantiomer. The method may comprise combining N-methyl-2-pyrrolidone or a salt thereof with a nicotinate compound in the presence of a solvent and a strong base to form 1-methyl-3-nicotinoyl-2-pyrrolidone or a salt thereof; and reducing the 1-methyl-3-nicotinoyl-2-pyrrolidone or salt thereof in solution with Na2S2O4 to produce racemic nicotine or salt thereof. Resolving the racemic nicotine (or other enantiomeric mixture) may comprise combining the nicotine with (?)-O,O?-di-p-toluoyl-L-tartaric acid (L-PTTA).
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: September 1, 2020
    Assignee: NJOY, LLC
    Inventors: Bert Willis, Mohammed Moinuddin Ahmed, Wesley Freund, Douglas Sawyer
  • Publication number: 20190263777
    Abstract: The present disclosure generally relates to methods of preparing nicotine and resolving R,S nicotine to enrich the (S)(?) enantiomer. The method may comprise combining N-methyl-2-pyrrolidone or a salt thereof with a nicotinate compound in the presence of a solvent and a strong base to form 1-methyl-3-nicotinoyl-2-pyrrolidone or a salt thereof; and reducing the 1-methyl-3-nicotinoyl-2-pyrrolidone or salt thereof in solution with Na2S2O4 to produce racemic nicotine or salt thereof. Resolving the racemic nicotine (or other enantiomeric mixture) may comprise combining the nicotine with (?)-O,O?-di-p-toluoyl-L-tartaric acid (L-PTTA).
    Type: Application
    Filed: May 15, 2019
    Publication date: August 29, 2019
    Applicant: NJOY, LLC
    Inventors: Bert WILLIS, Mohammed Moinuddin AHMED, Wesley FREUND, Douglas SAWYER
  • Patent number: 10329271
    Abstract: The present disclosure generally relates to methods of preparing nicotine and resolving R,S nicotine to enrich the (S)(?) enantiomer. The method may comprise combining N-methyl-2-pyrrolidone or a salt thereof with a nicotinate compound in the presence of a solvent and a strong base to form 1-methyl-3-nicotinoyl-2-pyrrolidone or a salt thereof; and reducing the 1-methyl-3-nicotinoyl-2-pyrrolidone or salt thereof in solution with Na2S2O4 to produce racemic nicotine or salt thereof. Resolving the racemic nicotine (or other enantiomeric mixture) may comprise combining the nicotine with (?)-O,O?-di-p-toluoyl-L-tartaric acid (L-PTTA).
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: June 25, 2019
    Assignee: NJOY, LLC
    Inventors: Bert Willis, Mohammed Moinuddin Ahmed, Wesley Freund, Douglas Sawyer
  • Publication number: 20180030028
    Abstract: The present disclosure generally relates to methods of preparing nicotine and resolving R,S nicotine to enrich the (S)(?) enantiomer. The method may comprise combining N-methyl-2-pyrrolidone or a salt thereof with a nicotinate compound in the presence of a solvent and a strong base to form 1-methyl-3-nicotinoyl-2-pyrrolidone or a salt thereof; and reducing the 1-methyl-3-nicotinoyl-2-pyrrolidone or salt thereof in solution with Na2S2O4 to produce racemic nicotine or salt thereof. Resolving the racemic nicotine (or other enantiomeric mixture) may comprise combining the nicotine with (?)-O,O?-di-p-toluoyl-L-tartaric acid (L-PTTA).
    Type: Application
    Filed: October 6, 2017
    Publication date: February 1, 2018
    Applicant: NJOY, LLC
    Inventors: Bert WILLIS, Mohammed Moinuddin AHMED, Wesley FREUND, Douglas SAWYER
  • Patent number: 9809567
    Abstract: The present disclosure generally relates to methods of preparing nicotine and resolving R,S nicotine to enrich the (S)(?) enantiomer. The method may comprise combining N-methyl-2-pyrrolidone or a salt thereof with a nicotinate compound in the presence of a solvent and a strong base to form 1-methyl-3-nicotinoyl-2-pyrrolidone or a salt thereof; and reducing the 1-methyl-3-nicotinoyl-2-pyrrolidone or salt thereof in solution with Na2S2O4 to produce racemic nicotine or salt thereof. Resolving the racemic nicotine (or other enantiomeric mixture) may comprise combining the nicotine with (?)-O,O?-di-p-toluoyl-L-tartaric acid (L-PTTA).
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: November 7, 2017
    Assignee: NJOY, LLC
    Inventors: Bert Willis, Mohammed Moinuddin Ahmed, Wesley Freund, Douglas Sawyer
  • Publication number: 20160326134
    Abstract: The present disclosure generally relates to methods of preparing nicotine and resolving R,S nicotine to enrich the (S)(?) enantiomer. The method may comprise combining N-methyl-2-pyrrolidone or a salt thereof with a nicotinate compound in the presence of a solvent and a strong base to form 1-methyl-3-nicotinoyl-2-pyrrolidone or a salt thereof; and reducing the 1-methyl-3-nicotinoyl-2-pyrrolidone or salt thereof in solution with Na2S2O4 to produce racemic nicotine or salt thereof. Resolving the racemic nicotine (or other enantiomeric mixture) may comprise combining the nicotine with (?)-O,O?-di-p-toluoyl-L-tartaric acid (L-PTTA).
    Type: Application
    Filed: December 8, 2015
    Publication date: November 10, 2016
    Applicant: NJOY, Inc.
    Inventors: Bert Willis, Mohammed Moinuddin AHMED, Wesley FREUND, Douglas SAWYER
  • Patent number: 9388093
    Abstract: Systems for ionic liquid catalyzed hydrocarbon conversion comprise a reactor vessel, a mixing device in fluid communication with the reactor vessel, and at least one circulation loop in fluid communication with the reactor vessel and the mixing device. The mixing device may comprise an upper venturi, at least one feed injection component, and a lower venturi. Such systems may be used for ionic liquid catalyzed alkylation reactions. Processes for ionic liquid catalyzed hydrocarbon conversion are also disclosed.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: July 12, 2016
    Assignee: Chevron U.S.A. Inc.
    Inventors: Huping Luo, Moinuddin Ahmed, Krishniah Parimi, Bong Kyu Chang, Michael John Girgis, Donald Henry Mohr, Hye Kyung Cho Timken
  • Publication number: 20160001255
    Abstract: Systems and apparatus for ionic liquid catalyzed hydrocarbon conversion may comprise a modular reactor comprising a plurality of mixer modules. The mixer modules may be arranged in series. One or more feed modules may be disposed between the mixer modules. Such systems may be used for ionic liquid catalyzed alkylation reactions. Processes for ionic liquid catalyzed hydrocarbon conversion are also disclosed.
    Type: Application
    Filed: July 3, 2014
    Publication date: January 7, 2016
    Applicant: Chevron U.S.A. Inc.
    Inventors: Huping Luo, Arthur William Etchells, III, Donald Henry Mohr, Hye Kyung Cho Timken, Moinuddin Ahmed, Krishniah Parimi, Bong Kyu Chang, Michael John Girgis
  • Publication number: 20160002125
    Abstract: Systems for ionic liquid catalyzed hydrocarbon conversion comprise a reactor vessel, a mixing device in fluid communication with the reactor vessel, and at least one circulation loop in fluid communication with the reactor vessel and the mixing device. The mixing device may comprise an upper venturi, at least one feed injection component, and a lower venturi. Such systems may be used for ionic liquid catalyzed alkylation reactions. Processes for ionic liquid catalyzed hydrocarbon conversion are also disclosed.
    Type: Application
    Filed: July 3, 2014
    Publication date: January 7, 2016
    Applicant: Chevron U.S.A. Inc.
    Inventors: Huping Luo, Moinuddin Ahmed, Krishniah Parimi, Bong Kyu Chang, Michael John Girgis, Donald Henry Mohr, Hye Kyung Cho Timken
  • Patent number: 8821805
    Abstract: This application provides a process unit for the production of alkylate gasoline, comprising: a) a nozzle having an orifice that dispenses one or more recirculated streams comprising ionic liquid catalyst into a chamber in the nozzle, b) a conduit for introducing a hydrocarbon feed stream comprising an olefin to the orifice at a close distance from the orifice; and c) a throat connecting the chamber in the nozzle to an alkylation zone. The process unit can have multiple Venturi nozzles.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: September 2, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Huping Luo, Moinuddin Ahmed, Krishniah Parimi, Bong-Kyu Chang
  • Publication number: 20140183275
    Abstract: Systems, apparatus, and methods for distributing a mixed phase fluid to a monolith catalyst bed within a reactor, wherein a mixed phase fluid may be generated by a nozzle tray comprising a plurality of nozzles, the mixed phase fluid may be distributed by the nozzles to a mixed phase distributor system, and the mixed phase fluid may be further distributed by the mixed phase distributor system to a plurality of monolith channels within the reactor.
    Type: Application
    Filed: March 7, 2014
    Publication date: July 3, 2014
    Applicant: CHEVRON U.S.A. INC.
    Inventors: KRISHNIAH PARIMI, STEVEN XUQI SONG, MOINUDDIN AHMED, THIEN DUYEN THI NGUYEN
  • Publication number: 20140183282
    Abstract: Systems, apparatus, and methods for distributing a mixed phase fluid to a monolith catalyst bed within a reactor, wherein a mixed phase fluid may be generated by a nozzle tray comprising a plurality of nozzles, the mixed phase fluid may be distributed by the nozzles to a mixed phase distributor system, and the mixed phase fluid may be further distributed by the mixed phase distributor system to a plurality of monolith channels within the reactor.
    Type: Application
    Filed: March 7, 2014
    Publication date: July 3, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Krishniah Parimi, Steven Xuqi Song, Moinuddin Ahmed, Thien Duyen Thi Nguyen
  • Patent number: 8697015
    Abstract: Systems, apparatus, and methods for distributing a mixed phase fluid to a monolith catalyst bed within a reactor, wherein a mixed phase fluid may be generated by a nozzle tray comprising a plurality of nozzles, the mixed phase fluid may be distributed by the nozzles to a mixed phase distributor system, and the mixed phase fluid may be further distributed by the mixed phase distributor system to a plurality of monolith channels within the reactor.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: April 15, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Krishniah Parimi, Steven Xuqi Song, Moinuddin Ahmed, Thien Duyen Thi Nguyen
  • Publication number: 20140024874
    Abstract: Disclosed herein are processes in which precipitation permits removal of metal halides (e.g. AlCl3) from ionic liquids. After precipitation, the precipitated metal halides can be physically separated from the bulk ionic liquid. More effective precipitation can be achieved through cooling or the combination of cooling and the provision of metal halide seed crystals. The ionic liquids can be regenerated ionic liquid catalysts, which contain excess metal halides after regeneration. Upon removal of the excess metal halides, they can be reused in processes using ionic liquid catalysts, such as alkylation processes.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 23, 2014
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Moinuddin Ahmed, Huping Luo, Krishniah Parimi, Bong-Kyu Chang, Sara Lindsay
  • Publication number: 20130274533
    Abstract: Disclosed herein are processes in which precipitation permits removal of metal halides (e.g. AlCl3) from ionic liquids. After precipitation, the precipitated metal halides can be physically separated from the bulk ionic liquid. More effective precipitation can be achieved through cooling or the combination of cooling and the provision of metal halide seed crystals. The ionic liquids can be regenerated ionic liquid catalysts, which contain excess metal halides after regeneration. Upon removal of the excess metal halides, they can be reused in processes using ionic liquid catalysts, such as alkylation processes.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 17, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventors: Moinuddin Ahmed, Huping Luo, Krishniah Parimi, Bong-Kyu Chang, Sara Lindsay
  • Patent number: 8541638
    Abstract: Disclosed herein are processes in which precipitation permits removal of metal halides (e.g. AlCl3) from ionic liquids. After precipitation, the precipitated metal halides can be physically separated from the bulk ionic liquid. More effective precipitation can be achieved through cooling or the combination of cooling and the provision of metal halide seed crystals. The ionic liquids can be regenerated ionic liquid catalysts, which contain excess metal halides after regeneration. Upon removal of the excess metal halides, they can be reused in processes using ionic liquid catalysts, such as alkylation processes.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: September 24, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventors: Moinuddin Ahmed, Huping Luo, Krishniah Parimi, Bong-Kyu Chang, Sara Lindsay
  • Publication number: 20130142700
    Abstract: Systems, apparatus, and methods for distributing a mixed phase fluid to a monolith catalyst bed within a reactor, wherein a mixed phase fluid may be generated by a nozzle tray comprising a plurality of nozzles, the mixed phase fluid may be distributed by the nozzles to a mixed phase distributor system, and the mixed phase fluid may be further distributed by the mixed phase distributor system to a plurality of monolith channels within the reactor.
    Type: Application
    Filed: December 1, 2011
    Publication date: June 6, 2013
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Krishniah Parimi, Steven Xuqi Song, Moinuddin Ahmed, Thien Duyen Thi Nguyen
  • Publication number: 20130066130
    Abstract: Ionic liquid alkylation processes may comprise contacting at least one hydrocarbon stream with an ionic liquid catalyst in an ionic liquid alkylation zone under ionic liquid alkylation conditions, cooling at least one of a reactor effluent and a hydrocarbon phase of the reactor effluent, and recycling the cooled reactor effluent or cooled hydrocarbon phase to the ionic liquid alkylation zone. Ionic liquid alkylation systems for performing ionic liquid catalyzed alkylation processes are also disclosed.
    Type: Application
    Filed: September 12, 2011
    Publication date: March 14, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventors: Huping Luo, Moinuddin Ahmed