David J O'Connor

US Patent:

8092558, Jan 10, 2012

Filed:

Jan 20, 2009

Appl. No.:

12/356328

Inventors:

David G. O'Connor - North Bend WA, US
Robert B. Nelson - Snoqualmie WA, US

Assignee:

Asemblon, Inc. - Redmond WA

International Classification:

B01J 7/00
B01J 8/00
C10B 1/00

US Classification:

48 61, 48 89, 48119, 481279, 216 65, 216 94, 427555, 427556, 427240, 4274071, 20419215, 20419217

Abstract:

There is disclosed a microchannel reactor module for the immediate catalytic release of hydrogen from hydrogenated organic molecules along with the recovery of hydrogen gas and the recovery of dehydrogenated organic molecules as a liquid. More specifically, the disclosure provides a polyimide-based microchannel plate that is particularly useful for a process of immediate catalytic release of hydrogen from a hydrogenated organic molecule or formulation of molecules.

US Patent:

8535381, Sep 17, 2013

Filed:

Oct 1, 2008

Appl. No.:

12/243519

Inventors:

David O'Connor - North Bend WA, US
Robert Nelson - Snoqualamie WA, US

Assignee:

Asemblon, Inc. - Bellevue WA

International Classification:

A61F 2/30
D02G 3/02
D03D 15/00
B05D 3/02

US Classification:

623 1811, 428367, 442229, 4273833

Abstract:

There is disclosed a gold surface for the catalytic release of hydrogen from an alkane thiol. More specifically, the present disclosure provides a large surface area of gold on a carbon fiber scaffold that does not contain any sublayers of metals that can block the catalytic release of hydrogen from alkane thiols or form other reactions that remove the sulfur moiety from alkane thiol. There is further disclosed a method for forming a gold surface onto woven carbon fiber sheets wherein no sublayer or other intermediate material is used.

US Patent:

20050003521, Jan 6, 2005

Filed:

Mar 10, 2004

Appl. No.:

10/798639

Inventors:

David O'Connor - North Bend WA, US
Barton Norton - Redmond WA, US
Gerald Klein - Edmonds WA, US

International Classification:

C12Q001/68
C12M001/34

US Classification:

435287200, 435006000

Abstract:

The present invention relates to devices and methods for performing an array of chemical reactions. The device includes a substrate having an array of microwells. Each microwell within the array includes a porous region defined in the first side and extending partially through the substrate. The porous region is formed by the selective removal of a substrate constituent, such that the porous region is defined by a continuous portion of the substrate. A wide range of functional groups, sample molecules, and chemical moieties that can be easily introduced into the described microwells and immobilized therein, particularly onto the porous region of the substrate, therefore the devices of the present invention are useful as supports for the synthesis of compounds, such as biomolecules, and for a range of methods involving chemical reactions and assays.

US Patent:

20090194714, Aug 6, 2009

Filed:

Dec 3, 2008

Appl. No.:

12/327800

Inventors:

Robert B. Nelson - Snoqualmie WA, US
David G. O'Connor - North Bend WA, US

International Classification:

G01N 21/85
B26D 7/00

US Classification:

250577, 83 23

Abstract:

There is disclosed a fiber optic liquid level sensor apparatus that functions using total internal reflection and an index of refraction. More specifically, there is disclosed a fiber optic liquid level sensor apparatus comprising two fiber optic strands, each having a first end and a second end, substantially oriented in parallel to each other, wherein the second ends of both strands are attached to each other.

US Patent:

20090211397, Aug 27, 2009

Filed:

Feb 17, 2009

Appl. No.:

12/372411

Inventors:

David G. O'Connor - North Bend WA, US
Robert B. Nelson - Snoqualmie WA, US

International Classification:

F16H 33/20

US Classification:

74 84 R

Abstract:

There is disclosed a flexible motor coupling device that provides for distance changes along a lateral axis between a motor shaft and a device to be actuated (such as a valve shaft). More specially, there is disclosed a motor coupling device comprising an outer casing having an axis therein and a carriage shaft, wherein the carriage shaft moves laterally along the axis of rotation and is surrounded by ball bearings.

US Patent:

20100210878, Aug 19, 2010

Filed:

Feb 17, 2010

Appl. No.:

12/707658

Inventors:

Esmaeel Naeemi - Lynnwood WA, US
David G. O'Connor - North Bend WA, US

Assignee:

Asemblon, Inc. - Redmond WA

International Classification:

C07C 209/42
B01J 8/18

US Classification:

564491, 422141, 564493

Abstract:

There is disclosed a process for hydrogen release and chemical storage by dehydrogenating low molecular weight aliphatic amines and di-amines to produce their corresponding nitriles in a reactor system containing a hydrogen fractionation membrane (or sweep gas) to quickly remove any and all hydrogen generated during the dehydrogenation reaction. This disclosure further provides a process for hydrogen recovery using bi- and tri-functional amines that produce corresponding nitriles and high density hydrogen release.

US Patent:

20120258020, Oct 11, 2012

Filed:

Apr 9, 2012

Appl. No.:

13/442694

Inventors:

David O'Connor - North Bend WA, US
Esmaeel Naeemi - Lynnwood WA, US

International Classification:

B01J 19/00

US Classification:

422199

Abstract:

In one example disclosed in the current application, by supplying just enough heat to the channel walls to replace the reaction heat removed during the reaction, a reactor exhibits tighter temperature tolerances with respect to the desired reaction temperature. In other words, the surface temperature can be more closely matched to the desired reaction temperature. Also, having a design where the channels can be scaled in both geometry and number allows control of the rate of mass transport through the channels to minimize unwanted side reactions.

US Patent:

20120282151, Nov 8, 2012

Filed:

Apr 9, 2012

Appl. No.:

13/442739

Inventors:

David O'Connor - North Bend WA, US
Esmaeel Naeemi - Lynnwood WA, US

International Classification:

B01J 8/02

US Classification:

422199

Abstract:

The current application is directed to a packed-bed reactor comprising a housing; and section portions contained within the housing, each comprising a spiral-wound heater. The spiral-wound heaters together comprise a catalyst-disk stack.