Hewlett-packard Development Company, L.p.

Other

Jeffrey Allen Nielsen

Christie Dudenhoefer

Kenneth Ward

David C Collins

Craig Olbrich

Matthew David Smith

Debora J Thomas

Joshua M Yu

Dennis Raymond Esterberg

Tony S Cruz-Uribe

Steven T Castle

Roberto A Pugliese

Michael W Cumbie

Vladek P Kasperchik

Manish Giri

David Ridgway Otis, Jr

Hilary Ely

Shawn D Hunter

Matthew C Still

Kenneth Joseph Duda

Devin Alexander Mourey

Silam J Choy

Kevin Francis Peters

Diane R Hammerstad

Chantelle Domingue

Richard W Seaver

Isaac Farr

Blair M Kent

John A Devos

James D Hankins

Matthew Jason Janssen

Joseph W Dody

Robert Moline

Gerald F Meehan

Mark W Woodruff

Darrel E Pozzesi

Norman L Berger

Chien-Hua Chen

Alexander N Govyadinov

Omer Gila

Napoleon J Leoni

Trudy L Benjamin

Viktor Shkolnikov

James A Feinn

Clayton L Holstun

Stephen William Bauer

Greg Scott Long

Matthew David Giere

Paul Joseph Bruinsma

James P Axtell

Terry M Lambright

Dustin W Blair

Daniel Robert Blakley

Ronald R Anderson

Mark D Lund

Antonio Cruz-Uribe

Ravi Prasad

Benjamin L Clark

Thomas R Strand

Laura Kramer

Stan E Leigh

Jian-Gang Weng

Stephen A Loughran

Adam Higgins

Olan C Way

David H Ochs

Preston Seu

Casey Timon Miller

Scott A Norum

David Miller Lowe

Vignesh Kannan

David Otis

Kathryn H Cyr

David Leigh

Darrel H Cummings

Jeremy Hartan Donaldson

Sadiq Bengall

George Melchiorsen

Paul E Watts

Wayne E Gisel

Nk Peter Samuel

Robert W Sperry

Craig A Olbrich

Paul Watts

In one example in accordance with the present disclosure, a fluid ejection system is described. The fluid ejection system includes a frame to retain a number of fluid ejection devices. Each fluid ejection device includes a reservoir disposed on a first side of the frame and a fluid ejection die disposed on an opposite side of the frame. Each fluid ejection die includes 1) a fluid feed slot formed in a substrate to receive fluid from the reservoir, 2) an array of nozzles formed in the substrate to eject fluid, and 3) an ejection adjustment system to selectively adjust an amount of fluid ejected from the fluid ejection devices.

Fluid ejection with ejection adjustments

In one example in accordance with the present disclosure, a fluidic die is described. The fluidic die includes a plurality of ejection subassemblies. Each ejection subassembly includes an ejection chamber to hold a volume of fluid and an opening through which the volume of fluid is ejected via a fluid actuator. A pitch of the ejection subassemblies aligns with a spatial arrangement of nanowells in an array of nanowells on a substrate.

Ejection subassembly pitches to match nanowell spacing

Integrated circuit

A fluid ejection system, in an example, includes at least one nozzle of at least one die from which a fluid is ejected and at least one nanowell at which the at least one nozzle ejects an amount of fluid. A method of dispensing a fluid, in an example, includes addressing at least one nanowell with at least one nozzle of at least one die, and depositing a fluid in the nanowell with the at least one nozzle.

Fluid ejections in nanowells

An alignment system, in an example, may include a substrate comprising at least one nanowell, at least one fluid ejection device comprising at least one die, the at least one die comprising as least one nozzle, and an alignment device to align the at least one nozzle to the at least one nanowell.

Alignment devices

In one example in accordance with the present disclosure, a fluidic ejection controller is described. The fluidic ejection controller includes a firing board to pass electrical control signals for ejecting fluid from a fluidic ejection device. An ejection board of the fluidic ejection controller is electrically coupled to, and selectively removable from, the firing board to pass the electrical control signals to the fluidic ejection device. Electrical pins are disposed on the ejection board in a pattern that matches a pattern of electrical pads on the fluidic ejection device. The electrical pins interface with corresponding electrical pads to pass the electrical control signals from the ejection board to the fluidic ejection device.

Fluidic ejection controllers with selectively removable ejection boards

A system for partitioning a liquid sample, the system including: an ejection device, the ejection device including an array of nozzles, wherein adjacent nozzles are separated by a constant distance in a first axis; and a microfluidics device including: a plurality of intake ports to receive a deposited droplet, wherein pairs of intake ports are separated by the same constant distance in the same first axis such that adjacent nozzles can simultaneously eject droplets to different intake ports.

Partition liquid into samples

A digital dispense apparatus includes at least one fluid dispense device, at least one reservoir fluidically connected to the at least one fluid dispense device, a monolithic carrier structure carrying the at least one fluid dispense device and reservoir, the monolithic carrier forming fluid routing between the reservoir and the fluid dispense device.

Monolithic carrier structure including fluid routing for digital dispensing

An example fluid dispensing system includes a printhead assembly comprising a printhead to dispense a given fluid in a printing process; and a first memory storing an identifier of the given fluid. The example fluid dispensing system further includes an accessory to interact with the printhead in a cleaning process or a storage process. The example fluid dispensing system further includes a second memory that is located with the accessory. The example fluid dispensing system further includes a read-write device to: read the identifier of the given fluid from the first memory; read the second memory; and, when the second memory does not store a fluid identifier, write the identifier of the given fluid to the second memory.

Fluid dispensing systems

A digital dispense apparatus comprising a plurality of fluid dispense devices, at least one reservoir connected to the plurality of fluid dispense devices to deliver fluid to the plurality of fluid dispense devices, at least one contact pad array, and a single monolithic carrier structure.

Monolithic carrier structure for digital dispensing

Examples described herein also provide a substrate conveyance system. The substrate conveyance system may include a conveyor surface to convey a number of substrates, and a number of apertures defined in the conveyor surface between the substrates as positioned on the conveyor surface. The location of the apertures is based on a location at which at least one reagent module dispenses a reagent.

Substrate conveyance systems

An example device includes a first microfluidic channel in communication with a fluid reservoir to receive cell-containing fluid from the fluid reservoir. The device further includes a second microfluidic channel in communication with the fluid reservoir to receive cell-containing fluid from the fluid reservoir. The device further includes a first sensor disposed at the first microfluidic channel, a second sensor disposed at the second microfluidic channel, a first dispense nozzle disposed at an end of the first microfluidic channel, and a second dispense nozzle disposed at an end of the second microfluidic channel. The first microfluidic channel is shaped to convey cells of a first size range, and the second microfluidic channel is shaped to convey cells of a second size range that is different from the first size range.

Microfluidic channels to convey cells of different sizes

An apparatus includes a pipette dispenser to control dispensing of a volume to a dispensing location. A tip is operatively coupled to the pipette dispenser. The tip includes an electromechanical print head to dispense the volume from the pipette dispenser to the dispensing location based on a command from the pipette dispenser that indicates an amount of the volume to be dispensed from the print head.

Pipette dispenser tip utilizing print head

According to an example, a microfluidic apparatus may include a channel, a foyer, in which the foyer is in fluid communication with the channel and in which the channel has a smaller width than the foyer, a sensor to sense a property of a fluid passing through the channel, a nozzle in fluid communication with the foyer, and an actuator positioned in line with the nozzle. The microfluidic apparatus may also include a controller to determine whether the sensed property of the fluid meets a predetermined condition and to perform a predefined action in response to the sensed property of the fluid meeting the predetermined condition.

Microfluidic apparatuses

Growing community of inventors

Corvallis, OR, United States of America

Jeffrey Allen Nielsen