Gabriel Iftime

US Patent:

20220362990, Nov 17, 2022

Filed:

May 17, 2021

Appl. No.:

17/322534

Inventors:

- Palo Alto CA, US
Junhua Wei - Palo Alto CA, US
Gabriel Iftime - Newark CA, US

International Classification:

B29C 64/165
B33Y 10/00
B33Y 30/00

Abstract:

A method of three-dimensional manufacturing including depositing a layer of powder in a powder bed, the layer comprising particles of at least a first component of a two-component reactive material, dispensing a first solution containing at least one of a solvent and a second component of the two-component reactive material the solvent selected to cause the two components to form one or more cross-linked regions of a three-dimensional object, iterating the depositing and dispensing to form subsequent layers of the three-dimensional object until the object is formed, and removing any unwanted particles from the object. A three-dimensional manufacturing system has a powder bed to hold layers of particles, and one or more print heads positioned to dispense liquid onto the powder bed to cause the particles for form one or more cross-linked regions in layers of a solid object.

US Patent:

20220315493, Oct 6, 2022

Filed:

Jan 24, 2022

Appl. No.:

17/582901

Inventors:

- PALO ALTO CA, US
Gabriel Iftime - Newark CA, US
Jerome Unidad - Paris, FR
Rahul Pandey - San Jose CA, US
Mahati Chintapalli - Mountain View CA, US

International Classification:

C04B 35/80
C04B 35/626

Abstract:

A ceramic matrix composite has fibers, a ceramic matrix bonded to the fibers, and ceramic particles, distributed throughout the matrix. A method includes mixing a high char ceramic resin precursor with ceramic particles, adding a catalyst to create a mixture, heating the mixture to produce functionalized ceramic particles, and cooling the mixture to produce a resin having functionalized particles.

US Patent:

20220315875, Oct 6, 2022

Filed:

Dec 20, 2021

Appl. No.:

17/555684

Inventors:

- Palo Alto CA, US
Eric COCKER - Redwood City CA, US
Joerg MARTINI - San Francisco CA, US
Gabriel IFTIME - Newark CA, US
Junhua WEI - Palo Alto CA, US

Assignee:

Palo Alto Research Center Incorporated - Palo Alto CA

International Classification:

C12M 1/107
B01J 19/24
C01B 32/50
C12N 1/20
C12P 7/00
C12P 1/04
C12M 1/00
C12M 1/34
C12M 3/00
C12M 1/12

Abstract:

Microorganisms present within a plurality of microorganism clusters immobilized in a porous support material may collectively define a supported bio-catalyst. When the microorganisms are effective to convert methane into one or more oxidized carbon compounds (e.g., methanotrophic bacteria), the supported bio-catalysts may be utilized to remove methane from methane-containing gas streams, such as those obtained from mining ventilation. Methods for processing a methane-containing gas stream may comprise interacting the gas stream with the supported bio-catalyst in substantial absence of a liquid phase, and obtaining a methane-depleted gas stream downstream from the supported bio-catalyst. Systems for processing a methane-containing gas stream may comprise the supported bio-catalysts housed in one or more vessels fluidly coupled to a source of methane-containing gas stream. A gas concentration in the methane-containing gas stream and/or the methane-depleted gas stream may be used to determine a current state or anticipated remaining lifetime of the supported bio-catalyst.

US Patent:

20220259399, Aug 18, 2022

Filed:

May 3, 2022

Appl. No.:

17/735321

Inventors:

- PALO ALTO CA, US
MAHATI CHINTAPALLI - Mountain View CA, US
GABRIEL IFTIME - Newark CA, US
ELI BULGER - Nottawa, Ontario, CA

International Classification:

C08J 9/28

Abstract:

A method of forming a porous, polymer aerogel, includes producing a miscible formulation of at least one of monomers, oligomers, crosslinkers and prepolymers, polymerizing the miscible formulation to form a multiphasic gel, wherein phases are continuous and the multiphasic gel has at least one depolymerizable domain and at least one non-depolymerizable domain, and the at least one depolymerizable domain is chemically bonded to the at least one non-depolymerizable domain, and removing the depolymerizable domain or domains from the multiphasic gel to produce a porous aerogel with a color rendering index of at least 25. A method of forming a porous, polymer aerogel, including producing a miscible formulation of at least one monomer, oligomer or crosslinker, and a prepolymer having at least one reactive functional group, polymerizing the miscible formulation to form a multiphasic gel, wherein the prepolymer having at least one reactive functional group is chemically bonded to a polymer that results from the polymerization of the at least one monomer or oligomer, and phases are continuous and the multiphasic gel has at least one depolymerizable domain bonded to at least one non-depolymerizable domain, and placing the multiphasic gel in a depolymerization solution having a depolymerization solvent to chemically degrade the depolymerizable domain into smaller oligomers and monomers, removing the depolymerization solvent to produce a porous aerogel with a color rendering index of at least 25.

US Patent:

20220235224, Jul 28, 2022

Filed:

Jan 25, 2021

Appl. No.:

17/157637

Inventors:

- Palo Alto CA, US
Junhua Wei - Palo Alto CA, US
Gabriel Iftime - Newark CA, US

International Classification:

C08L 79/02
C08L 63/00
C08L 83/04
C08L 77/00
C08L 75/04
C08K 9/04
C08K 3/04
C08K 3/16
C08K 3/36
C08K 3/34
C08K 5/17
C08K 5/1515

Abstract:

A composition of matter includes macroparticles comprising particles of one or more continuous phase matrix materials and functionalized microparticles contained at least partially in the one or more matrix material. A method of manufacturing includes producing macroparticles comprising a continuous phase thermoset matrix material mixed with a thermal initiator, depositing a layer of the matrix material onto a powder bed, applying a focused heat source to the layer of matrix material to selectively cure portions of the layer, repeating the depositing and applying until a final shape is formed, and removing uncured powder from the final shape.

US Patent:

20220220267, Jul 14, 2022

Filed:

Jan 12, 2021

Appl. No.:

17/147217

Inventors:

- PALO ALTO CA, US
GABRIEL IFTIME - NEWARK CA, US
MICHAEL BENEDICT - PALO ALTO CA, US
MAHATI CHINTAPALLI - MOUTAIN VIEW CA, US

International Classification:

C08J 5/24
C08K 3/34
C08K 3/36
C08K 3/04

Abstract:

A method of manufacturing includes producing a powder resin comprising a polymer precursor and a thermal initiator, packing a fiber structure with the powder resin, resulting in a resin-packed structure, and heating the resin-packed structure to a curing temperature high enough to melt and cure the resin-packed structure to form a final structure.

US Patent:

20230126616, Apr 27, 2023

Filed:

Dec 21, 2022

Appl. No.:

18/069549

Inventors:

- PALO ALTO CA, US
Stephen Meckler - Boulder CO, US
Gabriel Iftime - Newark CA, US
Rahul Pandey - Cupertino CA, US
Mary Louie - Menlo Park CA, US
Eugene Shin Ming Beh - Menlo Park CA, US

International Classification:

B01D 53/14
B01J 20/26
B01J 13/00
C08J 3/24

Abstract:

A primary amine polymer aerogel comprising greater than 5 wt. % of primary amine monomers covalently bound to cross-linking monomers, wherein the primary amine monomers are selected from vinyl amine. A secondary amine polymer aerogel comprising secondary amine monomers covalently bound to cross-linking monomers, the secondary amine monomers being a result of substituting a hydrogen atom from a primary amine polymer aerogel, the primary amine polymer aerogel comprising vinyl amine monomers covalently bound to the cross-linking monomers. A tertiary amine polymer aerogel comprising tertiary amine monomers covalently bound to cross-linking monomers, the tertiary amine monomers being a result of substituting hydrogen atoms from a primary amine polymer aerogel, the primary amine polymer aerogel comprising vinyl amine monomers covalently bound to the cross-linking monomers.

US Patent:

20230021181, Jan 19, 2023

Filed:

Sep 23, 2022

Appl. No.:

17/951259

Inventors:

- Palo Alto CA, US
Gabriel Iftime - Dublin CA, US
Jessica Louis Baker Rivest - Palo Alto CA, US
Anne Plochowietz - Palo Alto CA, US

International Classification:

B29C 64/10

Abstract:

A method of forming a porous structure involves mixing a solvent with a curable material which disperses in the solvent such that the mixture has greater than 50% solvent content. The mixture is deposited on a substrate and viscosity of the mixture is increased. The curable material in the mixture is cured while a shape of the curable material is maintained by the solvent. After curing, the solvent is removed from the structure.