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    DROPLET EJECTORS TO DRAW FLUIDS THROUGH MICROFLUIDIC NETWORKS
    12.
    发明申请
    DROPLET EJECTORS TO DRAW FLUIDS THROUGH MICROFLUIDIC NETWORKS 有权

    公开(公告)号：US20210031188A1

    公开(公告)日：2021-02-04

    申请号：US17046126

    申请日：2018-11-22

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： John LAHMANN ,  Pavel KORNILOVICH ,  Silam J CHOY

    IPC: B01L3/00

    Abstract: An example device includes a chamber to receive a fluid, a first channel in communication with the chamber, a second channel in communication with the chamber, a target microfluidic network at the second channel, a first droplet ejector positioned at the first channel to draw a first portion of fluid through the first channel, and a second droplet ejector positioned at the second channel downstream of the target microfluidic network. The second droplet ejector is to draw a second portion of fluid through the second channel and into the target microfluidic network.

    DEVICES TO MEASURE FLOW RATES WITH MOVABLE ELEMENTS
    13.
    发明申请
    DEVICES TO MEASURE FLOW RATES WITH MOVABLE ELEMENTS 审中-公开

    公开(公告)号：US20200290041A1

    公开(公告)日：2020-09-17

    申请号：US16768248

    申请日：2018-08-30

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Alexander GOVYADINOV ,  Pavel KORNILOVICH

    IPC: B01L3/00 ,  G01F1/68 ,  G01F25/00 ,  G01F1/708

    Abstract: An example device includes a microfluidic channel and a movable element retained in the microfluidic channel to move from a first position to a second position by fluid flow through the microfluidic channel. The device includes a sensor to take a sensor reading to determine fluid flow through the microfluidic channel. The device includes a microfluidic pump to return the movable element from the second position to the first position. The device includes a controller to actuate the microfluidic pump and to determine a flow rate of the fluid flow through the microfluidic channel based on the sensor reading.

    BEAD PACKING IN MICROFLUIDIC CHANNELS
    15.
    发明申请
    BEAD PACKING IN MICROFLUIDIC CHANNELS 审中-公开

    公开(公告)号：US20190151846A1

    公开(公告)日：2019-05-23

    申请号：US16099246

    申请日：2016-07-12

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Pavel KORNILOVICH ,  Alexander GOVYADINOV ,  David P. MARKEL ,  Erik D. TORNIAINEN

    IPC: B01L3/00

    Abstract: A microfluidic bead-packing method includes activating a first micropump to transfer active microbeads through an inlet microchannel from a bead suspension reservoir to an adsorbing channel; packing the microbeads in the adsorbing channel; and activating a second micropump to reverse flow through at least a portion of the inlet microchannel and to transfer a sample fluid through the inlet microchannel from a sample reservoir to the adsorbing channel such that the sample fluid interacts with the packed microbeads.

    MICROFLUIDIC FLOW SENSOR
    17.
    发明申请
    MICROFLUIDIC FLOW SENSOR 有权

    公开(公告)号：US20210069708A1

    公开(公告)日：2021-03-11

    申请号：US16772350

    申请日：2018-02-12

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Alexander N. GOVYADINOV ,  Pavel KORNILOVICH ,  Diane R. HAMMERSTAD

    IPC: B01L3/00 ,  G01F1/708 ,  B01F3/04

    Abstract: A microfluidic flow sensor may include a substrate having a microfluidic channel, a bubble generator to introduce a bubble into fluid that is directed through the microfluidic channel and a sensor element along the microfluidic channel and spaced from the bubble generator. The sensor element outputs a signal based upon a sensed passage of the bubble with respect to the sensor element. Portions of the microfluidic channel proximate the sensor element have a first size and wherein the bubble generated by the bubble generator is to have a second size greater than one half the first size.

    PARTICLE CATEGORIZATION
    19.
    发明申请
    PARTICLE CATEGORIZATION 审中-公开

    公开(公告)号：US20200333238A1

    公开(公告)日：2020-10-22

    申请号：US16768878

    申请日：2018-01-29

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Alexander GOVYADINOV ,  Pavel KORNILOVICH

    IPC: G01N15/14 ,  B01L3/00 ,  H01L41/09

    Abstract: An example system includes an input channel having a first end and a second end to receive particles through the first end, a sensor to categorize particles in the input channel into one of at least two categories, and at least two output channels Each output channel is coupled to the second end of the input channel to receive particles from the input channel, and each output channel is associated with at least one category of the at least two categories. Each output channel has a corresponding pump operable, based on the categorization of a detected particle in a category associated with a different output channel, to selectively slow, stop, or reverse a flow of particles into the output channel from the input channel.

    MICROFLUIDIC DEVICES
    20.
    发明申请
    MICROFLUIDIC DEVICES 审中-公开

    公开(公告)号：US20200009558A1

    公开(公告)日：2020-01-09

    申请号：US16493402

    申请日：2017-04-07

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Alexander GOVYADINOV ,  Adam HIGGINS ,  Pavel KORNILOVICH

    IPC: B01L3/00 ,  B01L7/00

    Abstract: The present disclosure is drawn to microfluidic devices. In one example, a microfluidic device can include a first covered fluid feed slot in fluid communication with a first microfluidic channel and a second covered fluid feed slot in fluid communication with a second microfluidic channel. The first microfluidic channel can be formed adjacent to the second microfluidic channel but not in fluid communication with the second microfluidic channel. The first covered fluid feed slot can include a first fluid feed hole for filling a fluid into the first covered fluid feed slot. The second covered fluid feed slot can also include a second fluid feed hole for filling a fluid into the second covered fluid feed slot.

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