Jason Holt

US Patent:

8038887, Oct 18, 2011

Filed:

Aug 23, 2006

Appl. No.:

12/064604

Inventors:

Olgica Bakajin - San Leandro CA, US
Jason Holt - Berkeley CA, US
Aleksandr Noy - Belmont CA, US
Hyung Gyu Park - Oakland CA, US

Assignee:

Lawrence Livermore National Security, LLC - Livermore CA

International Classification:

B01D 61/00
B01D 39/00
B01D 29/00
B01C 65/00

US Classification:

210652, 21050027, 21050025, 2105021, 210490, 264 41, 264555, 977751, 4283044, 42344723, 427291

Abstract:

Nanoporous membranes comprising single walled, double walled, and multiwalled carbon nanotubes embedded in a matrix material were fabricated for fluid mechanics and mass transfer studies on the nanometer scale and commercial applications. Average pore size can be 2 nm to 20 nm, or seven nm or less, or two nanometers or less. The membrane can be free of large voids spanning the membrane such that transport of material such as gas or liquid occurs exclusively through the tubes. Fast fluid, vapor, and liquid transport are observed. Versatile micromachining methods can be used for membrane fabrication. A single chip can comprise multiple membranes. These membranes are a robust platform for the study of confined molecular transport, with applications in liquid and gas separations and chemical sensing including desalination, dialysis, and fabric formation.

US Patent:

8177979, May 15, 2012

Filed:

Aug 8, 2011

Appl. No.:

13/205114

Inventors:

Timothy V. Ratto - Oakland CA, US
Jason K. Holt - Berkeley CA, US
Alan W. Szmodis - Oakland CA, US

Assignee:

NanOasis Technologies, Inc. - Richmond CA

International Classification:

B01D 61/00
B01D 63/00

US Classification:

210652, 210650, 210651

Abstract:

This invention relates to heterogenous pore polymer nanotube membranes useful in filtration, such as reverse osmosis desalination, nanofiltration, ultrafiltration and gas separation.

US Patent:

8196756, Jun 12, 2012

Filed:

Apr 2, 2010

Appl. No.:

12/753353

Inventors:

Timothy V. Ratto - Oakland CA, US
Jason K. Holt - Berkeley CA, US
Alan W. Szmodis - Oakland CA, US

Assignee:

NanOasis - Richmond CA

International Classification:

B01D 39/00
B01D 39/14
B01D 5/00
B29C 67/00

US Classification:

21050041, 21050027, 2105021, 264 48, 264 49, 427291, 977751

Abstract:

This invention relates to heterogenous pore polymer nanotube membranes useful in filtration, such as reverse osmosis desalination, nanofiltration, ultrafiltration and gas separation.

US Patent:

8475661, Jul 2, 2013

Filed:

Apr 27, 2012

Appl. No.:

13/458376

Inventors:

Timothy V. Ratto - Oakland CA, US
Jason K. Holt - Berkeley CA, US
Alan W. Szmodis - Oakland CA, US

Assignee:

Nagare Membranes, LLC - Coventry CT

International Classification:

B01D 61/00
B01D 63/00
B01D 29/00

US Classification:

210652, 210650, 210651, 2105021, 21050027, 210490, 21050041, 977751, 42344723

Abstract:

This invention relates to heterogenous pore polymer nanotube membranes useful in filtration, such as reverse osmosis desalination, nanofiltration, ultrafiltration and gas separation.

US Patent:

8617394, Dec 31, 2013

Filed:

Jun 14, 2013

Appl. No.:

13/918570

Inventors:

Jason K. Holt - Berkeley CA, US
Alan W. Szmodis - Oakland CA, US

Assignee:

Nagare Membranes, LLC - Coventry CT

International Classification:

B01D 24/00
B01D 29/00
B01D 63/00
B01D 35/00

US Classification:

2103231, 2103216, 210490, 2105021, 21050041, 2104331

Abstract:

This invention relates to heterogenous pore polymer nanotube membranes useful in filtration, such as reverse osmosis desalination, nanofiltration, ultrafiltration and gas separation.

US Patent:

7993524, Aug 9, 2011

Filed:

Jun 25, 2009

Appl. No.:

12/491867

Inventors:

Timothy V. Ratto - Oakland CA, US
Jason K. Holt - Berkeley CA, US
Alan W. Szmodis - Oakland CA, US

Assignee:

NanOasis Technologies, Inc. - San Jose CA

International Classification:

B01D 61/00
B01D 39/00
B01D 39/14
B01D 29/00
B95D 5/00

US Classification:

210652, 210480, 21050038, 2105021, 21050027, 427244, 427245, 264165, 4234473, 428378

Abstract:

Membranes for filtration by size exclusion are formed from open-ended nanotubes embedded in a polymeric matrix. The matrix forms a layer whose thickness is substantially less than the average length of the nanotubes, allowing the nanotubes to be randomly oriented throughout the matrix while providing channels extending through the layer for the selective passage of molecular species or particles based on size.

US Patent:

20090321355, Dec 31, 2009

Filed:

Nov 12, 2008

Appl. No.:

12/269714

Inventors:

Timothy V. Ratto - Oakland CA, US
Jason K. Holt - Berkeley CA, US
Alan W. Szmodis - Oakland CA, US

Assignee:

NANOASIS TECHNOLOGIES, INC., a corporation of the state of Delaware - San Jose CA

International Classification:

C02F 1/00
B05D 3/10

US Classification:

210651, 21050027, 427302, 977750

Abstract:

Membranes for filtration by size exclusion are formed from open-ended nanotubes embedded in a polymeric matrix. The matrix forms a layer whose thickness is substantially less than the average length of the nanotubes, allowing the nanotubes to be randomly oriented throughout the matrix while providing channels extending through the layer for the selective passage of molecular species or particles based on size.

US Patent:

20100021263, Jan 28, 2010

Filed:

Nov 30, 2007

Appl. No.:

12/517458

Inventors:

Jason Holt - Glenview IL, US
Erwin V. Boven - Glenview IL, US
Glenn G> Heavens - Glenview IL, US

Assignee:

ILLINOIS TOOL WORKS INC. - Glenview IL

International Classification:

F16B 43/02
H01R 13/00

US Classification:

411107, 16 25

Abstract:

A bushing includes a cylindrical main body having a leading end and a trailing end, wherein a fastener passage is defined within the main body, and a plurality of ribs outwardly extending from the main body. The plurality of ribs are configured to securely position the bushing with respect to an opening formed in a component.