Patents by Inventor Jason D. Davis

Jason D. Davis 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: 11128804
    Abstract: An endoscope and related method comprise a proximal handle and a distal shaft having an insertion end. A housing comprising a camera assembly may be mounted on an insertion end of the shaft and include at least one lens and an image sensor. The camera assembly housing is rotatable about an axis perpendicular to the long axis of the shaft, giving the camera assembly a variable field of view. The rotatable camera assembly housing may be mounted to the insertion end of the shaft so that the rotatable housing of the camera assembly comprises the distal-most element of the endoscope shaft or insertion end. The endoscope may include a circuit board having a first portion disposed within the proximal handle and one or more extension portions that extend within the shaft to the camera assembly and/or to a light source near the distal end of the shaft.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: September 21, 2021
    Assignee: DEKA Products Limited Partnership
    Inventors: Andrew M. Haggerty, Kevin L. Grant, Peter K. Vondras, Timothy D. Moreau, Jason A. Demers, Daniel B. Davis
  • Patent number: 10294178
    Abstract: In a process for separating a mixture comprising cyclohexanone and phenol, a solid-phase basic material, such as basic ion-exchange resin, is used to remove acid and/or sulfur from the mixture prior to separation. The process results in reduced amount of contamination such as cyclic ethers in the cyclohexanone and/or phenol products.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: May 21, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Keith H. Kuechler, Jörg F. W. Weber, Ashley J. Poucher, Jason D. Davis
  • Patent number: 10259765
    Abstract: Disclosed are novel processes for making cyclohexanone compositions, from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene. The process includes hydrogenation of a feed stream comprising phenol, cyclohexanone, and cyclohexylbenzene. The feed stream may be subjected to one or more pre-hydrogenation treatments, such as passing through one or more sorbents, addition of basic chemical agents, and/or addition of water, so as to improve catalyst activity, minimize undesired side reactions, and/or remove catalyst poisons from the feed stream. The feed stream may be provided to a hydrogenation reaction zone in the vapor phase, with periodic alterations to hydrogenation reaction conditions such that the feed is provided in mixed liquid and vapor phase in order to carry out liquid washing of a hydrogenation catalyst bed within the hydrogenation reaction zone.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: April 16, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jihad M. Dakka, Ashley J. Malik, Christopher L. Becker, Jason D. Davis, Kirk C. Nadler, Jose M. Vargas, Tan-Jen Chen, Seth M. Washburn, Jörg F. W. Weber
  • Patent number: 10259759
    Abstract: Disclosed is (i) a process of making phenol and/or cyclohexanone from cyclohexylbenzene including a step of removing methylcyclopentylbenzene from (a) the cyclohexylbenzene feed supplied to the oxidation step and/or (b) the crude phenol product (ii) a phenol composition and (iii) a cyclohexylbenzene composition that can be made using the process.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: April 16, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jason D. Davis, Ashley J. Poucher, Jörg F. W. Weber, Jonathan J. Watts, Christopher L. Becker
  • Patent number: 10252968
    Abstract: Disclosed are novel processes for making cyclohexanone compositions, from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene. The process includes hydrogenation of a feed stream comprising phenol, cyclohexanone, and cyclohexylbenzene. The feed stream may be subjected to one or more pre-hydrogenation treatments, such as passing through one or more sorbents, addition of basic chemical agents, and/or addition of water, so as to improve catalyst activity, minimize undesired side reactions, and/or remove catalyst poisons from the feed stream. The feed stream may be provided to a hydrogenation reaction zone in the vapor phase, with periodic alterations to hydrogenation reaction conditions such that the feed is provided in mixed liquid and vapor phase in order to carry out liquid washing of a hydrogenation catalyst bed within the hydrogenation reaction zone.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: April 9, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jihad M. Dakka, Ashley J. Malik, Christopher L. Becker, Jason D. Davis, Kirk C. Nadler, Jose M. Vargas, Tan-Jen Chen, Seth M. Washburn, Jörg F. W. Weber
  • Patent number: 10233140
    Abstract: Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: March 19, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher L. Becker, Jason D. Davis, Jihad M. Dakka, Kirk C. Nadler
  • Publication number: 20180273457
    Abstract: Disclosed are novel processes for making cyclohexanone compositions, from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene. The process includes hydrogenation of a feed stream comprising phenol, cyclohexanone, and cyclohexylbenzene. The feed stream may be subjected to one or more pre-hydrogenation treatments, such as passing through one or more sorbents, addition of basic chemical agents, and/or addition of water, so as to improve catalyst activity, minimize undesired side reactions, and/or remove catalyst poisons from the feed stream. The feed stream may be provided to a hydrogenation reaction zone in the vapor phase, with periodic alterations to hydrogenation reaction conditions such that the feed is provided in mixed liquid and vapor phase in order to carry out liquid washing of a hydrogenation catalyst bed within the hydrogenation reaction zone.
    Type: Application
    Filed: June 17, 2016
    Publication date: September 27, 2018
    Inventors: Jihad M. Dakka, Ashley J. Malik, Christopher L. Becker, Jason D. Davis, Kirk C. Nadler, Jose M. Vargas, Tan-Jen Chen, Seth M. Washburn, Jörg F.W Weber
  • Patent number: 10053408
    Abstract: Disclosed are processes for making cyclohexanone from a mixture comprising phenol, cyclohexanone, cyclohexylbenzene, and an S-containing component, comprising a step of removing at least a portion of the S-containing component to reduce poisoning of a hydrogenation catalyst used for hydrogenating phenol to cyclohexanone.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: August 21, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Keith H. Kuechler, Jörg F. W. Weber, Ashley J. Poucher, Jason D. Davis, Christopher L. Becker, Jihad M. Dakka
  • Publication number: 20180194705
    Abstract: Disclosed are novel processes for making cyclohexanone compositions, from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene. The process includes hydrogenation of a feed stream comprising phenol, cyclohexanone, and cyclohexylbenzene. The feed stream may be subjected to one or more pre-hydrogenation treatments, such as passing through one or more sorbents, addition of basic chemical agents, and/or addition of water, so as to improve catalyst activity, minimize undesired side reactions, and/or remove catalyst poisons from the feed stream. The feed stream may be provided to a hydrogenation reaction zone in the vapor phase, with periodic alterations to hydrogenation reaction conditions such that the feed is provided in mixed liquid and vapor phase in order to carry out liquid washing of a hydrogenation catalyst bed within the hydrogenation reaction zone.
    Type: Application
    Filed: June 17, 2016
    Publication date: July 12, 2018
    Inventors: Jihad M. Dakka, Ashley J. Malik, Christopher L. Becker, Jason D. Davis, Kirk C. Nadler, Jose M. Vargas, Tan-Jen Chen, Seth M. Washburn, Jörg F.W. Weber
  • Patent number: 9938220
    Abstract: Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: April 10, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher L. Becker, Jason D. Davis, Jihad M. Dakka, Kirk C. Nadler
  • Patent number: 9938219
    Abstract: Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: April 10, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher L. Becker, Jason D. Davis, Jihad M. Dakka, Kirk C. Nadler
  • Patent number: 9938218
    Abstract: Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: April 10, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher L. Becker, Jason D. Davis, Jihad M. Dakka, Kirk C. Nadler
  • Patent number: 9926254
    Abstract: Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: March 27, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher L. Becker, Jason D. Davis, Jihad M. Dakka, Kirk C. Nadler
  • Publication number: 20180065903
    Abstract: In a process for separating a mixture comprising cyclohexanone and phenol, a solid-phase basic material, such as basic ion-exchange resin, is used to remove acid and/or sulfur from the mixture prior to separation. The process results in reduced amount of contamination such as cyclic ethers in the cyclohexanone and/or phenol products.
    Type: Application
    Filed: January 15, 2016
    Publication date: March 8, 2018
    Inventors: Keith H. Kuechler, Jörg F.W. Weber, Ashley J. Poucher, Jason D. Davis
  • Patent number: 9908829
    Abstract: Disclosed is (i) a process of making phenol and/or cyclohexanone from cyclohexylbenzene including a step of removing methylcyclopentylbenzene from (a) the cyclohexylbenzene feed supplied to the oxidation step and/or (b) the crude phenol product (ii) a phenol composition and (iii) a cyclohexylbenzene composition that can be made using the process.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: March 6, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jason D. Davis, Ashley J. Poucher, Jörg F. W. Weber, Jonathan J. Watts, Christopher L. Becker
  • Patent number: 9902676
    Abstract: Disclosed are processes for making cyclohexanone from a mixture comprising phenol, cyclohexanone, cyclohexylbenzene, and a catalyst poison component, comprising a step of removing at least a portion of the catalyst poison component to reduce poisoning of a hydrogenation catalyst used for hydrogenating phenol to cyclohexanone.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: February 27, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher L. Becker, Jason D. Davis, Jihad M. Dakka, Kirk C. Nadler
  • Patent number: 9868680
    Abstract: An apparatus and method are provided for processing hydrocarbon feeds. The method enhances the conversion of hydrocarbon feeds into conversion products, such as ethylene and propylene. In particular, the present techniques utilize a high-severity reactor integrated with another reactor type to convert hydrocarbons to other petrochemical products.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: January 16, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Paul F. Keusenkothen, Frank Hershkowitz, Jason D. Davis
  • Patent number: 9868687
    Abstract: Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: January 16, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher L. Becker, Jason D. Davis, Jihad M. Dakka, Kirk C. Nadler
  • Publication number: 20170283353
    Abstract: Disclosed are processes and systems for making cyclohexanone from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene, comprising a step of or a device for subjecting at least a portion of the mixture to hydrogenation and a step of or a device for distilling a phenol/cyclohexanone/cyclohexylbenzene mixture to obtain an effluent rich in cyclohexanone.
    Type: Application
    Filed: September 8, 2015
    Publication date: October 5, 2017
    Inventors: Christopher L. Becker, Jason D. Davis, Jihad M. Dakka, Kirk C. Nadler
  • Publication number: 20170275226
    Abstract: Disclosed are processes for making cyclohexanone from a mixture comprising phenol, cyclohexanone, cyclohexylbenzene, and an S-containing component, comprising a step of removing at least a portion of the S-containing component to reduce poisoning of a hydrogenation catalyst used for hydrogenating phenol to cyclohexanone.
    Type: Application
    Filed: August 3, 2015
    Publication date: September 28, 2017
    Inventors: Keith H. Kuechler, Jörg F.W. Weber, Ashley J. Poucher, Jason D. Davis, Christopher L. Becker, Jihad M. Dakka