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).
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Patent number: 11846221Abstract: 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: GrantFiled: September 30, 2022Date of Patent: December 19, 2023Assignee: INGEVITY SOUTH CAROLINA, LLCInventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
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Publication number: 20230400001Abstract: 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: ApplicationFiled: August 24, 2023Publication date: December 14, 2023Inventors: Stephan Charles Cronin, Marta Leon Garcia, Laurence H. Hiltzik, Eyma Y. Marrero-Alfonso, Erik W. Versen, James R. Miller, Roger S. Williams
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Publication number: 20230332525Abstract: 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: ApplicationFiled: June 12, 2023Publication date: October 19, 2023Inventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
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Patent number: 11773810Abstract: 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: GrantFiled: September 28, 2022Date of Patent: October 3, 2023Assignee: INGEVITY SOUTH CAROLINA, LLCInventors: Stephan Charles Cronin, Marta Leon Garcia, Laurence H. Hiltzik, Eyma Y. Marrero-Alfonso, Erik W. Versen, James R. Miller, Roger S. Williams
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Patent number: 11732680Abstract: 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: GrantFiled: February 18, 2021Date of Patent: August 22, 2023Assignee: INGEVITY SOUTH CAROLINA, LLCInventors: Timothy M. Byrne, Laurence H. Hiltzik, Marta Leon Garcia, Cameron I. Thomson
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Publication number: 20230123753Abstract: 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: ApplicationFiled: December 16, 2022Publication date: April 20, 2023Inventors: Billy-Paul M. Holbrook, Laurence H. Hiltzik, Robert W. Mims, Rey P. Bongalonta, Kenechukwu Onubogu
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Publication number: 20230105716Abstract: 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: ApplicationFiled: December 2, 2022Publication date: April 6, 2023Inventors: Timothy M. Byrne, Laurence H. Hiltzik, Marta Leon Garcia, Cameron I. Thomson
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Patent number: 11591990Abstract: 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: GrantFiled: March 29, 2021Date of Patent: February 28, 2023Assignee: INGEVITY SOUTH CAROLINA, LLCInventors: Stephan Charles Cronin, Marta Leon Garcia, Laurence H. Hiltzik, Eyma Y. Marrero-Alfonso, Erik W. Versen, James R. Miller, Roger S. Williams
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Publication number: 20230044857Abstract: 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: ApplicationFiled: September 28, 2022Publication date: February 9, 2023Inventors: Stephan Charles Cronin, Marta Leon Garcia, Laurence H. Hiltzik, Eyma Y. Marrero-Alfonso, Erik W. Versen, James R. Miller, Roger S. Williams
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Patent number: 11571680Abstract: 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: GrantFiled: January 13, 2022Date of Patent: February 7, 2023Assignee: INGEVITY SOUTH CAROLINA, LLCInventors: Billy-Paul M. Holbrook, Laurence H. Hiltzik, Robert W. Mims, Rey P. Bongalonta, Kenechukwu Onubogu
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Patent number: 11565239Abstract: 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: GrantFiled: September 22, 2021Date of Patent: January 31, 2023Assignee: INGEVITY SOUTH CAROLINA, LLCInventors: Laurence H. Hiltzik, James R. Miller, Roger S. Williams, Cameron I. Thomson, Michael G. Heim, Emma M. Card, Stephan Charles Cronin
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Publication number: 20230026301Abstract: 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: ApplicationFiled: September 30, 2022Publication date: January 26, 2023Inventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
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Patent number: 11536178Abstract: 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: GrantFiled: February 19, 2021Date of Patent: December 27, 2022Assignee: INGEVITY SOUTH CAROLINA, LLCInventors: Laurence H. Hiltzik, Peter D. Mccrae, James R. Miller, Roger S. Williams
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Patent number: 11506097Abstract: 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: GrantFiled: November 19, 2021Date of Patent: November 22, 2022Assignee: INGEVITY SOUTH CAROLINA, LLCInventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
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Patent number: 11448109Abstract: 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: GrantFiled: January 10, 2022Date of Patent: September 20, 2022Assignee: INGEVITY SOUTH CAROLINA, LLCInventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
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Publication number: 20220134306Abstract: 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: ApplicationFiled: January 13, 2022Publication date: May 5, 2022Inventors: Billy-Paul M. Holbrook, Laurence H. Hiltzik, Robert W. Mims, Rey P. Bongalonta, Kenechukwu Onubogu
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Publication number: 20220127985Abstract: 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: ApplicationFiled: January 10, 2022Publication date: April 28, 2022Inventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
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Patent number: 11286823Abstract: 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: GrantFiled: September 6, 2019Date of Patent: March 29, 2022Assignee: INGEVITY SOUTH CAROLINA, LLCInventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
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Publication number: 20220074331Abstract: 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: ApplicationFiled: November 19, 2021Publication date: March 10, 2022Inventors: Laurence H. Hiltzik, Peter D. McCrae, James R. Miller, Roger S. Williams
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Patent number: 11253836Abstract: 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: GrantFiled: April 5, 2021Date of Patent: February 22, 2022Assignee: INGEVITY SOUTH CAROLINA, LLCInventors: Billy-Paul M. Holbrook, Laurence H. Hiltzik, Robert W. Mims, Rey P. Bongalonta, Kenechukwu Onubogu