Sean D O'Brien

US Patent:

20050032794, Feb 10, 2005

Filed:

Jan 15, 2004

Appl. No.:

10/758521

Inventors:

Janak Padia - Germantown MD, US
Sean O'Brien - Gaithersburg MD, US
Jiemin Lu - Germantown MD, US
Stanislaw Pikul - Germantown MD, US

International Classification:

C07D265/36
C07D215/12
A61K031/538
A61K031/517
A61K031/498
A61K031/47
A61K031/165

US Classification:

514230500, 514266100, 514248000, 514249000, 514311000, 514310000, 514619000, 544105000, 544235000, 544283000, 544353000, 546139000, 546176000, 552292000

Abstract:

Diamine derivatives of quinones, and related compounds, including salts thereof, that modulate the levels of gene expression in cellular systems, such as cancer cells, are disclosed, along with methods for preparing such compounds and derivatives, as well as pharmaceutical compositions containing these compounds and derivatives as active ingredients. Methods of using these as compounds and derivatives as therapeutic agents are also described.

US Patent:

61422541, Nov 7, 2000

Filed:

Jan 6, 1999

Appl. No.:

9/226445

Inventors:

David Claybaugh - Baltimore MD
Sean O'Brien - Greenbelt MD

Assignee:

Noise Cancellation Technologies, Inc. - Linthicum MD

International Classification:

A47B 8106

US Classification:

181199

Abstract:

A decorative speaker cover is disclosed that transforms any loudspeaker into a work of art. The decorative speaker cover of the invention consists of a sheet of material stretched across and adhered to a support frame. The sheet of material contains an artistic work like a picture, design, custom photograph, print, etc. The invention also includes methods for attaching the decorative speaker covers to a loudspeaker cabinet. The disclosed methods allow speaker covers to be readily changed.

US Patent:

20210352410, Nov 11, 2021

Filed:

Sep 19, 2019

Appl. No.:

17/278215

Inventors:

- Carlsbad CA, US
Sean O'Brien - Harwood MD, US

Assignee:

Polk Audio, LLC - Carlsbad CA

International Classification:

H04R 9/02

Abstract:

An electromechanical transducer (e.g., or ) includes a motor structure and voice coil winding support structure or former ( or ) configured with a vented annular spacer (e.g., ) and vented distal pole tip member (e.g., ) having aligned radial channels aimed to transport heat away from a voice coil ( or ) during the transducer's reciprocating movement while providing an extended, linear dynamic range and continuous cooling for the voice coil. A dual magnetic gap embodiment has an inside annular spacer member (e.g., A) and a co-planar outside annular spacer member (e.g., -O), each made of a thermally conductive steel alloy.

US Patent:

20180076616, Mar 15, 2018

Filed:

Sep 15, 2016

Appl. No.:

15/265989

Inventors:

- Berwyn PA, US
Sean Delaney O'Brien - Kernersville NC, US
Thomas Michael Banas - Kernersville NC, US

International Classification:

H02H 7/26
G01R 31/02
H01F 38/32
H01H 47/22
H05K 5/02
B60L 11/18

Abstract:

A power cable assembly includes a power cable extending between a first end and a second end having a hot conductor and a neutral conductor. The power cable assembly includes a circuit protection device along the power cable between the first and second ends. The circuit protection device has a ground fault circuit interrupt (GFCI) device configured to sense a current difference on the hot and neutral conductors to initiate a triggering event. The circuit protection device has a high-power relay device connected to the GFCI device. The high-power relay device is connected to the hot conductor and is configured to open the hot line when the triggering event is initiated by the GFCI device.