Long B Nguyen

US Patent:

7080804, Jul 25, 2006

Filed:

Jun 30, 2004

Appl. No.:

10/881148

Inventors:

Donald B. Anderson - Baltimore MD, US
Richard M. Anthony - Bel Air MD, US
Long T. Nguyen - Baltimore MD, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

F41G 7/00
G01C 21/20
H04L 9/00
H04L 9/28

US Classification:

244 315, 244 31, 34235701, 34235706, 701200, 701207, 701213, 701215, 380277, 380278, 380 44

Abstract:

A weapons system is disclosed that provides hot-start navigational information to the Global-Positioning-System receivers on missiles prior to flight. The system comprises a Global-Positioning-System receiver that uses a classified red cryptographic key to decode the P(Y) signal from one or more of the Global-Positioning-System constellation of satellites. Once the P(Y) signal is decoded, one or more characteristics of the P(Y) signal is derived. These characteristics of the signal—and some other information including a black cryptographic key that comprises the red cryptographic key—are then provided to the Global-Positioning-System receivers on missiles prior to flight. By giving the missiles this information, the missiles are able to acquire the P(Y) signals, which enables them to determine their position more quickly than they otherwise could.

US Patent:

8009404, Aug 30, 2011

Filed:

Dec 21, 2007

Appl. No.:

11/962090

Inventors:

Gennadiy Blinder - Germantown MD, US
Gregory F. Pensero - Abingdon MD, US
Long T. Nguyen - White Marsh MD, US
William P. Burgess - Finksburg MD, US
Joseph J. Sedlak - Essex MD, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

H01H 9/00
H01H 47/00
H01H 51/22
H01H 51/30
H02J 9/00

US Classification:

361160, 307 64

Abstract:

A system is provided that effectively obviates shortcomings of conventional, diode-ORed, redundant power supply systems by forcing a primary power source to provide power to the system load most the time, even when the primary source provides a lower voltage than that of a secondary power source. This preferential selection of the lower-voltage primary is achieved by interposing a power switching unit between the secondary power source and the ORing diode in front of the load. The power switching unit of the illustrative embodiment comprises a voltage regulator that is regulated at a first voltage level, which is lower than the nominal output voltage level provided by the primary power source. Meanwhile, the primary power source is able to charge the secondary power source, which is a battery in the illustrative embodiment, so that the secondary power source can provide power to the load when the primary power source is either interrupted or falls below the first voltage level.

US Patent:

20230115580, Apr 13, 2023

Filed:

Apr 13, 2022

Appl. No.:

17/720079

Inventors:

- Watertown MA, US
Jianming Yu - Plainsboro NJ, US
Kevin McGrath - Brighton MA, US
Xiben Li - Lexington MA, US
Tyler J. Mann - Brighton MA, US
Robert Leon - Sharon MA, US
In Jong Kim - Lexington MA, US
Yat Sun Or - Waltham MA, US
Long Nguyen - Boston MA, US

International Classification:

C07D 491/048
C07D 519/00
A61K 45/06

Abstract:

The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof:which inhibit Human Respiratory Syncytial Virus (HRSV) or Human Metapneumovirus (HMPV) inhibitors. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HRSV or HMPV infection. The invention also relates to methods of treating an HRSV or HMPV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.

US Patent:

20230108803, Apr 6, 2023

Filed:

Feb 24, 2022

Appl. No.:

17/679746

Inventors:

- Watertown MA, US
Jianming Yu - Plainsboro NJ, US
Kevin McGRATH - Brighton MA, US
Xiben Li - Lexington MA, US
Tyler J. Mann - Brighton MA, US
Robert Leon - Sharon MA, US
In Jong Kim - Lexington MA, US
Yat Sun Or - Waltham MA, US
Long Nguyen - Boston MA, US

International Classification:

C07F 9/09
C07D 491/048
C07D 519/00
A61K 45/06

Abstract:

The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof:which inhibit Human Respiratory Syncytial Virus (HRSV) or Human Metapneumovirus (HMPV) inhibitors. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HRSV or HMPV infection. The invention also relates to methods of treating an HRSV or HMPV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.