Saurabh Vyawahare from Mountain View, CA, age 45

Prototyping Methods And Devices For Microfluidic Components
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US Patent:

20070012891, Jan 18, 2007
Filed:

Dec 7, 2005
Appl. No.:

11/297651
Inventors:

George Maltezos - Fort Salonga NY, US
Axel Scherer - Laguna Beach CA, US
Saurabh Vyawahare - Pasadena CA, US
International Classification:

F16K 31/12
B29C 33/40
G06F 19/00
US Classification:

251012000, 264221000, 264308000, 264233000, 700118000, 264156000, 164034000
Abstract:

A printing method to fabricate three-dimensional microfluidic components is disclosed. A three-dimensional mold made of a first wax is formed. A sacrificial material made of a second wax is provided as a temporary support and then dissolved. A component material is poured onto the mold and cured. The first wax is then melted away. In this way three-dimensional interconnected fluidic components comprising channels, vias and control sections can be obtained.

Electrically Actuated Valves Made From Shape Memory Alloy Wires Embedded In Elastomer
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US Patent:

20080173833, Jul 24, 2008
Filed:

Sep 11, 2007
Appl. No.:

11/853531
Inventors:

Saurabh Vyawahare - Pasadena CA, US
Suresh Sitaula - Pasadena CA, US
Dvin Adalian - Alexandria VA, US
Axel Scherer - Laguna Beach CA, US
Assignee:

California Institute of Technology - Pasadena CA
International Classification:

F16K 31/00
US Classification:

251 11
Abstract:

Microfluidic valves constructed from elastomeric materials as the valve body components and employing shape memory alloy in wire form as the valve actuator. Various configurations of individual valves having both normally open and normally closed states are described. Apparatus using such valves and providing logic functionality with fluidic logic outputs are discussed. Apparatus that can be used for materials processing at the nano- or micro-scale are presented. Various forms of logical control of valve arrays are explained.

Color Display Materials And Related Methods And Devices
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US Patent:

20100309112, Dec 9, 2010
Filed:

Jun 8, 2010
Appl. No.:

12/796628
Inventors:

Aditya Rajagopal - Irvine CA, US
Christopher I. Walker - Pasadena CA, US
Saurabh Vyawahare - Pasadena CA, US
Axel Scherer - Laguna Beach CA, US
Thomas A. Tombrello - Altadena CA, US
International Classification:

G09G 3/34
US Classification:

345107
Abstract:

Pixel devices, comprising ink particles differing in electrical charge, mass and/or shape contained within a fluidic structure, and related arrays methods and systems.

Systems And Methods For Maintaining Constant Volumetric Flow Rates In A Fluid Channel
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US Patent:

20210325291, Oct 21, 2021
Filed:

Jun 25, 2021
Appl. No.:

17/359032
Inventors:

- South San Francisco CA, US
Saurabh Vyawahare - Mountain View CA, US
Assignee:

Verily Life Sciences LLC - South San Francisco CA
International Classification:

G01N 15/14
Abstract:

Disclosed herein are systems and methods capable of identifying, tracking, and sorting particles flowing in a channel, for example, a microfluidic channel having a fluid medium. The channel and the fluid medium can have a similar refractive index such that they appear translucent or transparent when illuminated by electromagnetic radiation. The particles can have a refractive index substantially different from that of the channel and the medium, such that the particles interfere with the electromagnetic radiation. A sensor can be disposed adjacent to the channel to record the electromagnetic radiation. The sensor can be used for identifying, tracking, and sorting the particles.

Systems And Methods For Maintaining Constant Volumetric Flow Rates In A Fluid Channel
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US Patent:

20200110020, Apr 9, 2020
Filed:

Sep 27, 2019
Appl. No.:

16/585687
Inventors:

- South San Francisco CA, US
Saurabh Vyawahare - Mountain View CA, US
Assignee:

Verily Life Sciences LLC - South San Francisco CA
International Classification:

G01N 15/14
Abstract:

Disclosed herein are systems and methods capable of identifying, tracking, and sorting particles flowing in a channel, for example, a microfluidic channel having a fluid medium. The channel and the fluid medium can have a similar refractive index such that they appear translucent or transparent when illuminated by electromagnetic radiation. The particles can have a refractive index substantially different from that of the channel and the medium, such that the particles interfere with the electromagnetic radiation. A sensor can be disposed adjacent to the channel to record the electromagnetic radiation. The sensor can be used for identifying, tracking, and sorting the particles.

Method For Self-Assembly Of Arbitrary Metal Patterns On Dna Scaffolds
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US Patent:

20140141211, May 22, 2014
Filed:

Oct 26, 2007
Appl. No.:

11/978219
Inventors:

Si-Ping Han - Yorba Linda CA, US
Robert Barish - Bedford NY, US
Michael J. Hochberg - Pasadena CA, US
Saurabh Vyawahare - Pasadena CA, US
Hareem Maune - Pasadena CA, US
International Classification:

C23C 18/31
US Classification:

428201, 427258, 427203
Abstract:

The present invention relates to methods for self-assembly of arbitrarily-shaped metal nanostructures using specifically-designed patterns on nucleic acid scaffolds. The methods involve using the nucleic acid scaffolds as templates on which a second material patterned, as seed nuclei. The patterns are then selectively plated with metal using an electro-less plating process to create arbitrarily-shaped metal nanostructures that are not constrained by the structure of the scaffold. The methods herein use controlled-growth processes to actively select the dimensions, positions, and alignments of the patterns to create different arbitrary shapes of metal nanostructures.

Saurabh Vyawahare