Joseph V Nguyen

US Patent:

6574599, Jun 3, 2003

Filed:

Mar 31, 1999

Appl. No.:

09/283772

Inventors:

Kang S. Lim - Danville CA
Joseph A. Nguyen - Pacific Grove CA

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G10L 1522

US Classification:

704270, 704275, 379 8801, 379 8803

Abstract:

A method for permitting a user to create a plurality of outbound communication paths to a plurality of communication devices from a unified messaging system, the creating the plurality of the outbound communication paths being performed responsive to verbal input from a user through a telephone. The method includes receiving at the unified messaging system the verbal input from the user through the telephone. There is also included recognizing an action word from the verbal input which includes an action word and called party identity or contacting data. An calendar database for the callee, external to the callers unified messaging system, is accessed via a network to determine whether a calendar entry therein temporally overlaps a time of the verbal command creating the end-to-end connection. The ascertained availability information may be provided to the caller for input whether to contact the callee. A conjunctive word with the identity or contacting data for a second callee may also be verbally input before the call table is finalized.

US Patent:

6874224, Apr 5, 2005

Filed:

Jun 21, 2002

Appl. No.:

10/175888

Inventors:

Rajendra Ahuja - Fremont CA, US
Joseph Nguyen - San Jose CA, US
Mostafa Jafarnia - Fremont CA, US

Assignee:

Waukesha Electric Systems, Inc. - Waukesha WI

International Classification:

H01F007/06

US Classification:

29606, 296021, 29832, 29854, 338 12

Abstract:

A three phase transformer circuit is provided that includes a supply side, wherein the supply side is selectably configurable, via the use of se of terminal boards, between a delta connection and a wye connection at a time of use and, a load side, wherein the load side is selectably configurable between a delta connection and a wye connection at the time of use. The three-phase transformer also provides for selecting an input voltage, from multiple input voltages, via the sets of terminal boards, at the time of use, and for selecting an output voltage for the supply side, from multiple output voltage, at the time of use.

US Patent:

8236169, Aug 7, 2012

Filed:

Jul 21, 2009

Appl. No.:

12/506937

Inventors:

Joseph V Nguyen - Albany CA, US
Axel Brait - San Rafael CA, US
Julie Chabot - Novato CA, US
Bo Kou - Albany CA, US
Erin Maris - Alameda CA, US
Rahul S. Bhaduri - Moraga CA, US
Alexander E. Kuperman - Orinda CA, US

Assignee:

Chevron U.S.A. Inc - San Ramon CA

International Classification:

C10G 11/00

US Classification:

208 78, 208 57, 208 58, 208 59, 208 79, 208108, 208112

Abstract:

A process for hydroprocessing heavy oil feedstock is disclosed. The process operates in once-through mode, employing a plurality of contacting zones and at least a separation zone to convert at least a portion of the heavy oil feedstock to lower boiling hydrocarbons, forming upgraded products. The contacting zones operate under hydrocracking conditions, employing a slurry catalyst for upgrading the heavy oil feedstock. At least an additive material selected from inhibitor additives, anti-foam agents, stabilizers, metal scavengers, metal contaminant removers, metal passivators, and sacrificial materials, in an amount of less than 1 wt. % of the heavy oil feedstock, is added to at least one of the contacting zones. In one embodiment, the additive material is an anti-foam agent. In another embodiment, the additive material is a sacrificial material for trapping heavy metals in the heavy oil feed and/or deposited coke, thus prolonging the life of the slurry catalyst.

US Patent:

8531262, Sep 10, 2013

Filed:

Feb 10, 2005

Appl. No.:

11/054546

Inventors:

Rajendra Ahuja - Fremont CA, US
Joseph Nguyen - San Jose CA, US
Mostafa Jafarnia - Fremont CA, US

Assignee:

Waukesha Electric Systems, Incorporated - Waukesha WI

International Classification:

H01F 21/12

US Classification:

336150, 336 10, 336147, 363 57, 363124, 363126, 361 35, 361 38

Abstract:

A three phase transformer circuit is provided that includes a supply side, wherein the supply side is selectably configurable, via the use of sets of terminal boards, between a delta connection and a wye connection at a time of use and, a load side, wherein the load side is selectably configurable between a delta connection and a wye connection at the time of use. The three-phase transformer also provides for selecting an input voltage, from multiple input voltages, via the sets of terminal boards, at the time of use, and for selecting an output voltage for the supply side, from multiple output voltage, at the time of use.

US Patent:

20120172197, Jul 5, 2012

Filed:

Dec 20, 2011

Appl. No.:

13/331660

Inventors:

Joseph V. Nguyen - Albany CA, US
Julie Chabot - Novato CA, US
Oleg Mironov - Hercules CA, US

International Classification:

B01J 31/02
B01J 37/20

US Classification:

502150

Abstract:

A process for preparing an improved slurry catalyst for the upgrade of heavy oil feedstock is provided. The process comprises providing at least a metal precursor in solution comprising at least two different metal cations in its molecular structure, with at least one of the metal cations is a Group VIB metal cation; sulfiding the metal precursor with a sulfiding agent in solution forming a catalyst precursor; and mixing the catalyst precursor with a hydrocarbon diluent to form the slurry catalyst. In one embodiment, the at least a metal precursor comprising at least two different metal cations is prepared by combining and reacting at least one Group VIB metal compound with at least a Promoter metal compound selected from Group VIII, Group IIB, Group IIA, Group IVA metals and combinations thereof.

US Patent:

20120172199, Jul 5, 2012

Filed:

Dec 20, 2011

Appl. No.:

13/331725

Inventors:

Shuwu Yang - Richmond CA, US
Julie Chabot - Novato CA, US
Ling Jiao - Albany CA, US
Joseph V. Nguyen - Albany CA, US
Bruce Edward Reynolds - Martinez CA, US

International Classification:

B01J 31/02
B01J 37/20

US Classification:

502150

Abstract:

An improved process to make a slurry catalyst for the upgrade of heavy oil feedstock is provided. In the process, at least a metal precursor feedstock is portioned and fed in any of the stages: the promotion stage; the sulfidation stage; or the transformation stage of a water-based catalyst precursor to a slurry catalyst. In one embodiment, the promoter metal precursor feedstock is split into portions, the first portion is for the sulfiding step, the second portion is for the promotion step; and optionally the third portion is to be added to the transformation step in the mixing of the sulfided promoted catalyst precursor with a hydrocarbon diluent to form the slurry catalyst. In another embodiment, the Primary metal precursor feedstock is split into portions.

US Patent:

20120172200, Jul 5, 2012

Filed:

Dec 20, 2011

Appl. No.:

13/331175

Inventors:

Joseph V. Nguyen - Albany CA, US
Axel Brait - San Rafael CA, US
Oleg Mironov - Hercules CA, US
Alexander E. Kuperman - Orinda CA, US

International Classification:

B01J 31/02
B01J 31/38
B01J 31/26
B01J 31/28

US Classification:

502167, 502168, 502150

Abstract:

A single metal slurry catalyst for the upgrade of heavy oil feedstock is provided. The slurry catalyst is prepared by sulfiding a Primary metal precursor, then mixing the sulfided metal precursor with a hydrocarbon diluent to form the slurry catalyst. The single-metal slurry catalyst has the formula (M)(S)(C)(H)(O)(N), wherein M is at least one of a non-noble Group VIII metal, a Group VIB metal, a Group IVB metal, and a Group IIB metal; 0.5a

US Patent:

20120172202, Jul 5, 2012

Filed:

Dec 20, 2011

Appl. No.:

13/331341

Inventors:

Oleg Mironov - Hercules CA, US
Alexander E. Kuperman - Orinda CA, US
Rahul Shankar Bhaduri - Moraga CA, US
Julie Chabot - Novato CA, US
Shuwu Yang - Richmond CA, US
Joseph V. Nguyen - Albany CA, US
Ling Jiao - Albany CA, US
Bruce Edward Reynolds - Martinez CA, US

Assignee:

Chevron Corporation - San Ramon CA

International Classification:

B01J 31/02

US Classification:

502167, 502150, 502168

Abstract:

A process for preparing a slurry catalyst for the upgrade of heavy oil feedstock is provided. The process employs a pressure leach solution obtained from a metal recovery process as part of the metal precursor feed. In one embodiment, the process comprises: sulfiding a pressure leach solution having at least a Group VIB metal precursor compound in solution forming a catalyst precursor, and mixing the sulfided catalyst precursor with a hydrocarbon diluent to form the slurry catalyst. In another embodiment, the pressure leach solution is mixed with a hydrocarbon diluent under high shear mixing conditions to form an emulsion, which emulsion can be sulfided in-situ upon contact with a heavy oil feedstock in the heavy oil upgrade process.