Patents by Inventor Ailin Li
Ailin Li 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: 11796504Abstract: An apparatus includes multiple levels of ion transport channels, with successive levels coupled by elevator channels. Efficient three dimensional packing provides long path lengths in practical volumes for ion mobility separation with high resolving power. Disclosed elevator configurations provide efficient routing of ion transport channels across levels with low ion loss, enabling ion mobility separation over 100 levels or more. Elevator configurations include (i) opposed traveling waves meeting at an elevator entrance, (ii) external elevator with a wrap-around electrode bank, (iii) external elevator with electrode banks on parallel extension plates, or (iv) elevator operating in surfing mode, in various combinations. Manufacture is aided by printed wiring boards, with interchangeable boards. Assembly with motherboard, spacer block(s), and alignment pins provides efficient distribution of electrode excitations and accurate reproducible positioning.Type: GrantFiled: August 11, 2021Date of Patent: October 24, 2023Assignee: Battelle Memorial InstituteInventors: Yehia M. Ibrahim, Adam L. Hollerbach, Ailin Li
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Publication number: 20220065816Abstract: An apparatus includes multiple levels of ion transport channels, with successive levels coupled by elevator channels. Efficient three dimensional packing provides long path lengths in practical volumes for ion mobility separation with high resolving power. Disclosed elevator configurations provide efficient routing of ion transport channels across levels with low ion loss, enabling ion mobility separation over 100 levels or more. Elevator configurations include (i) opposed traveling waves meeting at an elevator entrance, (ii) external elevator with a wrap-around electrode bank, (iii) external elevator with electrode banks on parallel extension plates, or (iv) elevator operating in surfing mode, in various combinations. Manufacture is aided by printed wiring boards, with interchangeable boards. Assembly with motherboard, spacer block(s), and alignment pins provides efficient distribution of electrode excitations and accurate reproducible positioning.Type: ApplicationFiled: August 11, 2021Publication date: March 3, 2022Applicant: Battelle Memorial InstituteInventors: Yehia M. Ibrahim, Adam L. Hollerbach, Ailin Li
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Publication number: 20210351003Abstract: Methods include directing a group of ions through a separation region of an ion manipulation apparatus, separating the group of ions in the separation region based on ion mobility, selecting a subset of the group of ions based on a dependence between ion mobility and ion arrival time of the separated ions at a deposition switch of the ion manipulation apparatus, and depositing the selected subset of ions on a substrate. Related systems and ion manipulation apparatus are disclosed. Also disclosed are methods and system that provide concurrent ion accumulation and ion separation in coupled and switchable electrode regions using traveling wave electric fields.Type: ApplicationFiled: May 7, 2021Publication date: November 11, 2021Applicant: Battelle Memorial InstituteInventors: Sandilya V.B. Garimella, Yehia M. Ibrahim, Ailin Li, Richard D. Smith
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Patent number: 11119069Abstract: An apparatus includes multiple levels of ion transport channels, with successive levels coupled by elevator channels. Efficient three dimensional packing provides long path lengths in practical volumes for ion mobility separation with high resolving power. Disclosed elevator configurations provide efficient routing of ion transport channels across levels with low ion loss, enabling ion mobility separation over 100 levels or more. Elevator configurations include (i) opposed traveling waves meeting at an elevator entrance, (ii) external elevator with a wrap-around electrode bank, (iii) external elevator with electrode banks on parallel extension plates, or (iv) elevator operating in surfing mode, in various combinations. Manufacture is aided by printed wiring boards, with interchangeable boards. Assembly with motherboard, spacer block(s), and alignment pins provides efficient distribution of electrode excitations and accurate reproducible positioning.Type: GrantFiled: October 25, 2019Date of Patent: September 14, 2021Assignee: BATTELLE MEMORIAL INSTITUTEInventors: Yehia M. Ibrahim, Adam L. Hollerbach, Ailin Li
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Publication number: 20200378922Abstract: An apparatus includes multiple levels of ion transport channels, with successive levels coupled by elevator channels. Efficient three dimensional packing provides long path lengths in practical volumes for ion mobility separation with high resolving power. Disclosed elevator configurations provide efficient routing of ion transport channels across levels with low ion loss, enabling ion mobility separation over 100 levels or more. Elevator configurations include (i) opposed traveling waves meeting at an elevator entrance, (ii) external elevator with a wrap-around electrode bank, (iii) external elevator with electrode banks on parallel extension plates, or (iv) elevator operating in surfing mode, in various combinations. Manufacture is aided by printed wiring boards, with interchangeable boards. Assembly with motherboard, spacer block(s), and alignment pins provides efficient distribution of electrode excitations and accurate reproducible positioning.Type: ApplicationFiled: October 25, 2019Publication date: December 3, 2020Applicant: Battelle Memorial InstituteInventors: Yehia M. Ibrahim, Adam L. Hollerbach, Ailin Li
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Patent number: 10497552Abstract: An ion manipulation device comprises a plurality of electrode rings arranged longitudinally adjacent to each other and defining a central axis therethrough. At least one electrode ring comprises a plurality of electrodes arranged in a first planar pattern. Electrodes are configured to periodically receive a voltage to generate a circular traveling wave that rotates around the electrodes of each electrode ring to confine ions within an interior of the apparatus.Type: GrantFiled: August 14, 2018Date of Patent: December 3, 2019Assignee: Battelle Memorial InstituteInventors: Yehia M. Ibrahim, Aneesh Prabhakaran, Sandilya V. B. Garimella, Richard D. Smith, Ailin Li
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Publication number: 20190057852Abstract: An ion manipulation device comprises a plurality of electrode rings arranged longitudinally adjacent to each other and defining a central axis therethrough. At least one electrode ring comprises a plurality of electrodes arranged in a first planar pattern. Electrodes are configured to periodically receive a voltage to generate a circular traveling wave that rotates around the electrodes of each electrode ring to confine ions within an interior of the apparatus.Type: ApplicationFiled: August 14, 2018Publication date: February 21, 2019Applicant: Battelle Memorial InstituteInventors: Yehia M. Ibrahim, Aneesh Prabhakaran, Sandilya V.B. Garimella, Richard D. Smith, Ailin Li