Thomas T Nguyen

US Patent:

20030188860, Oct 9, 2003

Filed:

Apr 4, 2002

Appl. No.:

10/116772

Inventors:

Patrick Zimmerman - Houston TX, US
Rocky Turley - Houston TX, US
William Eldridge - Cypress TX, US
Michael Ritter - Conroe TX, US
Gary Ingram - Richmond TX, US
Thomas Nguyen - Houston TX, US

Assignee:

Weatherford/Lamb, Inc.

International Classification:

E21B023/06

US Classification:

166/181000, 166/123000

Abstract:

A releasing mechanism for releasing a hydraulically actuated setting tool from a downhole tool is provided. Preferably, the downhole tool to be released is a wellbore sealing tool such as a bridge plug, packer or inflatable packer. The releasing mechanism comprises an adapter having a body, a connector above the body connected to the setting tool, and a lower portion. The releasing mechanism further comprises a releasable connection which releasably connects the lower portion of the adapter to a mandrel within the bridge plug or other sealing tool. In one embodiment, the releasable connection defines a frangible body disposed within the plane of the circumferential bore of the bridge plug mandrel. In another arrangement, the releasable connection defines both a frangible body and threaded collet fingers which releasably engage matching threads on the outer surface of the mandrel of the bridge plug or other wellbore sealing tool.

US Patent:

57734208, Jun 30, 1998

Filed:

Oct 20, 1995

Appl. No.:

8/531142

Inventors:

Thomas T. Nguyen - Philadelphia PA
John W. Ellingboe - Ridgewood NJ

Assignee:

American Home Products Corporation - Madison NJ

International Classification:

A61K 3170
C07H 1700

US Classification:

514 25

Abstract:

This invention relates to acylated benzylglycosides and a method for their use as smooth muscle cell proliferation inhibitors and as therapeutic compositions for treating diseases and conditions which are characterize by excessive smooth muscle proliferation, such as restenosis. The acylated benzylglycosides of this invention are those of formula I, below: ##STR1## wherein X is ##STR2## R. sup. 1 is H, alkyl having 1 to 6 carbon atoms, chloro, bromo, or alkoxy having 1 to 6 carbon atoms; R. sup. 2 is H, an acyl group having 1 to 6 carbon atoms, phenylsulfonyl, or substituted phenylsulfonyl; and R. sup. 3 is an acyl group having 1 to 8 carbon atoms, benzoyl, substituted benzoyl, alkylsulfonyl having 1 to 6 carbon atoms, phenylsulfonyl, or substituted phenylsulfonyl; R. sup. 4, R. sup. 5, R. sup. 6, R. sup. 7, R. sup. 8, and R. sup. 9 are each, independently, an acyl group having 1 to 6 carbon atoms; and R. sup. 10 and R. sup. 11 are each, independently, an acyl group having 1 to 6 carbon atoms, or the R. sup. 10 and R. sup.

US Patent:

59771011, Nov 2, 1999

Filed:

Dec 20, 1996

Appl. No.:

8/505171

Inventors:

Fadia El-Fehail Ali - Cherry Hill NJ
William Bondinell - Wayne PA
William Francis Huffman - Malvern PA
M. Amparo Lago - Audubon PA
Richard McCulloch Keenan - Malvern PA
Chet Kwon - King of Prussia PA
William Henry Miller - Schwenksville PA
Thomas Nguyen - King of Prussia PA
Dennis T. Takata - Flourtown PA

Assignee:

SmithKline Beecham Corporation - Philadelphia PA

International Classification:

A61K 3155
C07D40306
C07D40314

US Classification:

514221

Abstract:

Vitronectin receptor antagonists having the formula: ##STR1## which are useful for the treatment of inflammation, cancer and cardiovascular disorders, such as atherosclerosis and restenosis, and diseases wherein bone resorption is a factor, such as osteoporsis.