Patents by Inventor Laurence H. Hiltzik

Laurence H. Hiltzik 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: 11846221
    Abstract: An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: December 19, 2023
    Assignee: INGEVITY SOUTH CAROLINA, LLC
    Inventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
  • Publication number: 20230400001
    Abstract: The present description provides low DBL bleed emission performance properties that allows the design of evaporative fuel emission control systems that are simpler and more compact than those possible by prior art by inclusion of a vent-side volume comprising a parallel passage adsorbent such as a carbon honeycomb with narrow channel width and low cell pitch.
    Type: Application
    Filed: August 24, 2023
    Publication date: December 14, 2023
    Inventors: Stephan Charles Cronin, Marta Leon Garcia, Laurence H. Hiltzik, Eyma Y. Marrero-Alfonso, Erik W. Versen, James R. Miller, Roger S. Williams
  • Publication number: 20230332525
    Abstract: An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step.
    Type: Application
    Filed: June 12, 2023
    Publication date: October 19, 2023
    Inventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
  • Patent number: 11773810
    Abstract: The present description provides low DBL bleed emission performance properties that allows the design of evaporative fuel emission control systems that are simpler and more compact than those possible by prior art by inclusion of a vent-side volume comprising a parallel passage adsorbent such as a carbon honeycomb with narrow channel width and low cell pitch.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: October 3, 2023
    Assignee: INGEVITY SOUTH CAROLINA, LLC
    Inventors: Stephan Charles Cronin, Marta Leon Garcia, Laurence H. Hiltzik, Eyma Y. Marrero-Alfonso, Erik W. Versen, James R. Miller, Roger S. Williams
  • Patent number: 11732680
    Abstract: The present disclosure describes an evaporative emission control canister system that includes: one or more canisters comprising at least one vent-side particulate adsorbent volume comprising a particulate adsorbent having microscopic pores with a diameter of less than about 100 nm; macroscopic pores having a diameter of about 100-100,000 nm; and a ratio of a volume of the macroscopic pores to a volume of the microscopic pores that is greater than about 150%, and having a retentivity of about 1.0 g/dL or less. The system may further include a high butane working capacity adsorbent. The disclosure also describes a method for reducing emissions in an evaporative emission control system.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: August 22, 2023
    Assignee: INGEVITY SOUTH CAROLINA, LLC
    Inventors: Timothy M. Byrne, Laurence H. Hiltzik, Marta Leon Garcia, Cameron I. Thomson
  • Publication number: 20230123753
    Abstract: The present disclosure provides for a porous gas sorbent monolith with superior gravimetric working capacity and volumetric capacity, a gas storage system including a porous gas sorbent monolith of the present disclosure, methods of making the same, and method for storing a gas. The porous gas sorbent monolith includes a gas adsorbing material and a non-aqueous binder.
    Type: Application
    Filed: December 16, 2022
    Publication date: April 20, 2023
    Inventors: Billy-Paul M. Holbrook, Laurence H. Hiltzik, Robert W. Mims, Rey P. Bongalonta, Kenechukwu Onubogu
  • Publication number: 20230105716
    Abstract: The present disclosure describes an evaporative emission control canister system that includes: one or more canisters comprising at least one vent-side particulate adsorbent volume comprising a particulate adsorbent having microscopic pores with a diameter of less than about 100 nm; macroscopic pores having a diameter of about 100 - 100,000 nm; and a ratio of a volume of the macroscopic pores to a volume of the microscopic pores that is greater than about 150%, and having a retentivity of about 1.0 g/dL or less. The system may further include a high butane working capacity adsorbent. The disclosure also describes a method for reducing emissions in an evaporative emission control system.
    Type: Application
    Filed: December 2, 2022
    Publication date: April 6, 2023
    Inventors: Timothy M. Byrne, Laurence H. Hiltzik, Marta Leon Garcia, Cameron I. Thomson
  • Patent number: 11591990
    Abstract: The present description provides low DBL bleed emission performance properties that allows the design of evaporative fuel emission control systems that are simpler and more compact than those possible by prior art by inclusion of a vent-side volume comprising a parallel passage adsorbent such as a carbon honeycomb with narrow channel width and low cell pitch.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: February 28, 2023
    Assignee: INGEVITY SOUTH CAROLINA, LLC
    Inventors: Stephan Charles Cronin, Marta Leon Garcia, Laurence H. Hiltzik, Eyma Y. Marrero-Alfonso, Erik W. Versen, James R. Miller, Roger S. Williams
  • Publication number: 20230044857
    Abstract: The present description provides low DBL bleed emission performance properties that allows the design of evaporative fuel emission control systems that are simpler and more compact than those possible by prior art by inclusion of a vent-side volume comprising a parallel passage adsorbent such as a carbon honeycomb with narrow channel width and low cell pitch.
    Type: Application
    Filed: September 28, 2022
    Publication date: February 9, 2023
    Inventors: Stephan Charles Cronin, Marta Leon Garcia, Laurence H. Hiltzik, Eyma Y. Marrero-Alfonso, Erik W. Versen, James R. Miller, Roger S. Williams
  • Patent number: 11571680
    Abstract: The present disclosure provides for a porous gas sorbent monolith with superior gravimetric working capacity and volumetric capacity, a gas storage system including a porous gas sorbent monolith of the present disclosure, methods of making the same, and method for storing a gas. The porous gas sorbent monolith includes a gas adsorbing material and a non-aqueous binder.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: February 7, 2023
    Assignee: INGEVITY SOUTH CAROLINA, LLC
    Inventors: Billy-Paul M. Holbrook, Laurence H. Hiltzik, Robert W. Mims, Rey P. Bongalonta, Kenechukwu Onubogu
  • Patent number: 11565239
    Abstract: The present description provides high working capacity adsorbents with low DBL bleed emission performance properties that allows the design of evaporative fuel emission control systems that are lower cost, simpler and more compact than those possible by prior art. Emission control canister systems comprising the adsorbent material demonstrate a relatively high gasoline working capacity, and low emissions.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: January 31, 2023
    Assignee: INGEVITY SOUTH CAROLINA, LLC
    Inventors: Laurence H. Hiltzik, James R. Miller, Roger S. Williams, Cameron I. Thomson, Michael G. Heim, Emma M. Card, Stephan Charles Cronin
  • Publication number: 20230026301
    Abstract: An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol% and 50 vol% n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol% and 50 vol% n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step.
    Type: Application
    Filed: September 30, 2022
    Publication date: January 26, 2023
    Inventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
  • Patent number: 11536178
    Abstract: An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr BETP butane loading step.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: December 27, 2022
    Assignee: INGEVITY SOUTH CAROLINA, LLC
    Inventors: Laurence H. Hiltzik, Peter D. Mccrae, James R. Miller, Roger S. Williams
  • Patent number: 11506097
    Abstract: An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: November 22, 2022
    Assignee: INGEVITY SOUTH CAROLINA, LLC
    Inventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
  • Patent number: 11448109
    Abstract: An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: September 20, 2022
    Assignee: INGEVITY SOUTH CAROLINA, LLC
    Inventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
  • Publication number: 20220134306
    Abstract: The present disclosure provides for a porous gas sorbent monolith with superior gravimetric working capacity and volumetric capacity, a gas storage system including a porous gas sorbent monolith of the present disclosure, methods of making the same, and method for storing a gas. The porous gas sorbent monolith includes a gas adsorbing material and a non-aqueous binder.
    Type: Application
    Filed: January 13, 2022
    Publication date: May 5, 2022
    Inventors: Billy-Paul M. Holbrook, Laurence H. Hiltzik, Robert W. Mims, Rey P. Bongalonta, Kenechukwu Onubogu
  • Publication number: 20220127985
    Abstract: An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step.
    Type: Application
    Filed: January 10, 2022
    Publication date: April 28, 2022
    Inventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
  • Patent number: 11286823
    Abstract: An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: March 29, 2022
    Assignee: INGEVITY SOUTH CAROLINA, LLC
    Inventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
  • Publication number: 20220074331
    Abstract: An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step.
    Type: Application
    Filed: November 19, 2021
    Publication date: March 10, 2022
    Inventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
  • Patent number: 11253836
    Abstract: The present disclosure provides for a porous gas sorbent monolith with superior gravimetric working capacity and volumetric capacity, a gas storage system including a porous gas sorbent monolith of the present disclosure, methods of making the same, and method for storing a gas. The porous gas sorbent monolith includes a gas adsorbing material and a non-aqueous binder.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: February 22, 2022
    Assignee: INGEVITY SOUTH CAROLINA, LLC
    Inventors: Billy-Paul M. Holbrook, Laurence H. Hiltzik, Robert W. Mims, Rey P. Bongalonta, Kenechukwu Onubogu