Philip N Duncan

20140079571, Mar 20, 2014

Sep 17, 2013

14/029286

Philip N. Duncan - Fullerton CA, US
Transon V. Nguyen - Cambridge CA, US

The Regents of the University of California - Oakland CA

F04B 19/00
F16K 99/00

417392

Microfluidic oscillator circuits and pumps for microfluidic devices are provided. The microfluidic pump may include a plurality of fluid valves and a microfluidic oscillator circuit having an oscillation frequency. The fluid valves may be configured to move fluids. Each fluid valve may be connected to a node of the microfluidic oscillator circuit. The pumps may be driven by the oscillator circuits such that fluid movement is accomplished entirely by circuits on a microfluidic chip, without the need for off-chip controls.

20220390933, Dec 8, 2022

Jun 7, 2022

17/834227

- Irvine CA, US
Philip N. Duncan - Irvine CA, US

G05B 23/02
G06N 20/00

The present invention is directed to a device capable of implementing a machine learning algorithm to identify states of operation, performance, and health of a piece of machinery based on vibration and sound patterns. The present invention features a small electronic device consisting of one or more sensors with a computing device, that collects patterns of vibration and/or acoustic measurement from machinery to generate one or more representative signals. The device uses a simple algorithm to characterize the representative signals, and uses a simple algorithm to compare future signals to the characterized signals.

20220391218, Dec 8, 2022

Jun 7, 2022

17/834296

- Irvine CA, US
Philip N. Duncan - Irvine CA, US

G06F 9/4401
G06F 9/54

The present invention is directed to a computing device capable of accepting, identifying, and processing signals from a plurality of different sensor types without sensor-specific code. The present invention features a small electronic device consisting of one or more sensors with a computing device that can be reconfigured for different purposes at any time, without the need for changing programming code.

20220314236, Oct 6, 2022

Apr 4, 2022

17/712580

- Irvine CA, US
Philip N. Duncan - Irvine CA, US

B03C 5/00

This invention describes a device to collect a subset of small particles, such as cells, utilizing one or more electric fields formed by conductors attached to an insulating structure. The invention utilizes one or more conducting materials which are connected to a voltage source to generate the electric fields. The conductors are placed in a liquid sample containing one or more populations of particles. Some of the particles may be attracted to or repelled from the conductors due to the electric fields. If attracted, the particles attach to the conductors, after which, the conductors are removed from the sample and placed into a second sample to collect the particles. Particles that are attracted to the conductors may be drawn into a cavity or tube via suction. Alternatively, particles that are repelled by the electric field are preferentially excluded from being drawn into a suction cavity placed near the conductors.

20220266261, Aug 25, 2022

Feb 24, 2022

17/680039

- Irvine CA, US
Philip N Duncan - Irvine CA, US
Sarkis Babikian - Irvine CA, US

B03C 5/00
C12N 13/00
B01L 3/00

The present invention describes a device for sorting small particles using electric fields. The device described herein comprises one or more electrically conducting structures suspended in a fluid flow stream used to redirect the movement of particles in the flow stream. The electrically conducting structures are longitudinally disposed at a center axis of a fluidic channel. As particles flow in the fluid, electric fields on the suspended conductors move the small particles from one flow region to another, allowing them to be redirected to different endpoints.

20210379592, Dec 9, 2021

Aug 16, 2021

17/403513

- Oakland CA, US
Erik Morgan Werner - Irvine CA, US
Philip N. Duncan - Irvine CA, US
Transon V. Nguyen - Irvine CA, US
Siavash Ahrar - Irvine CA, US

B01L 3/00

This invention describes a design for a multiwell plate that contains integrated pumps that are used to stir each well of the plate. The device employs microfluidic logic technology to drive each peristaltic pump. This enables the plates to run autonomously, requiring only a static vacuum supply for power. The devices are entirely constructed out of low-cost polymers, with no electronics, and yet contains simple digital logic circuits to control the pumps. A stack of these plates may be run continuously in a standard cell culture incubator, allowing high-throughput culture of organoids.

20190153376, May 23, 2019

Jan 23, 2019

16/254835

- Oakland CA, US
Erik Morgan Werner - Irvine CA, US
Philip N. Duncan - Irvine CA, US
Transon V. Nguyen - Irvine CA, US
Siavash Ahrar - Irvine CA, US

C12M 1/02
F04B 43/12
C12M 3/06
C12M 1/32
C12M 1/00
C12M 1/34
C12M 1/36

This invention describes a design for a multiwell plate that contains integrated pumps that are used to stir each well of the plate. The device employs microfluidic logic technology to drive each peristaltic pump. This enables the plates to run autonomously, requiring only a static vacuum supply for power. The devices are entirely constructed out of low-cost polymers, with no electronics, and yet contains simple digital logic circuits to control the pumps. A stack of these plates may be run continuously in a standard cell culture incubator, allowing high-throughput culture of organoids.

20180023552, Jan 25, 2018

Sep 21, 2017

15/711946

Elliot En-Yu Hui - South Pasadena CA, US
Philip N. Duncan - Fullerton CA, US
Transon V. Nguyen - Cambridge MA, US

F04B 19/00
F04B 53/10
F16K 99/00
F04B 9/12

Microfluidic oscillator circuits and pumps for microfluidic devices are provided. The microfluidic pump may include a plurality of fluid valves and a microfluidic oscillator circuit having an oscillation frequency. The fluid valves may be configured to move fluids. Each fluid valve may be connected to a node of the microfluidic oscillator circuit. The pumps may be driven by the oscillator circuits such that fluid movement is accomplished entirely by circuits on a microfluidic chip, without the need for off-chip controls.