Exhibit 3.6

State of Delaware

Secretary of State

Division of Corporations

Delivered 04:56 PM 07/02/2004

FILED 04:56 PM 07/02/2004

SRV 040492505—3824783 FILE

CERTIFICATE OF INCORPORATION

OF

BRIDPORT HOLDINGS, INC.

ARTICLE I

NAME OF CORPORATION

The name of this corporation is:

Bridport Holdings, Inc.

ARTICLE II

REGISTERED OFFICE

The address of the registered office of the corporation in the State of Delaware is 9 East Loockerman Street, Suite 1B, in the City of Dover, County of Kent, and the name of its registered agent at that address is National Registered Agents, Inc.

ARTICLE III

PURPOSE

The purpose of the corporation is to engage in any lawful act or activity for which corporations may be organized under the General Corporation Law of Delaware.

ARTICLE IV

AUTHORIZED CAPITAL STOCK

The corporation shall be authorized to issue one class of stock to be designated Common Stock; the total number of shares which the corporation shall have authority to issue is one thousand (1,000), and each such share shall have a par value of one cent ($0.01).

ARTICLE V

INCORPORATOR

The name and mailing address of the incorporator of the corporation is:

Julie H. Yi

c/o Gibson, Dunn & Crutcher LLP

333 South Grand Avenue

Los Angeles, California 90071-3197

ARTICLE VI

BOARD POWER REGARDING BYLAWS

In furtherance and not in limitation of the powers conferred by statute, the Board of Directors is expressly authorized to make, repeal, alter, amend and rescind the bylaws of the corporation.

ARTICLE VII

ELECTION OF DIRECTORS

Elections of directors need not be by written ballot unless the bylaws of the corporation shall so provide.

ARTICLE VIII

LIABILITY AND INDEMNIFICATION

To the fullest extent permitted by the Delaware General Corporation Law, as the same exists or may hereafter be amended (the “Delaware Law”), a director of the corporation shall not be liable to the corporation or its stockholders for monetary damages for breach of fiduciary duty as a director. The corporation shall indemnify, in the manner and to the fullest extent permitted by the Delaware Law, any person (or the estate of any person) who is or was a party to, or is threatened to be made a party to, any threatened, pending or completed action, suit or proceeding, whether or not by or in the right of the corporation, and whether civil, criminal, administrative, investigative or otherwise, by reason of the fact that such person is or was a director or officer of the corporation, or is or was serving at the request of the corporation as a director or officer of another corporation, partnership, joint venture, trust or other enterprise. The corporation may indemnify, in the manner and to the fullest extent permitted by the Delaware Law, any person (or the estate of any person) who is or was a party to, or is threatened to be made a party to, any threatened, pending or completed action, suit or proceeding, whether

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or not by or in the right of the corporation, and whether civil, criminal, administrative, investigative or otherwise, by reason of the fact that such person is or was an employee or agent of the corporation, or is or was serving at the request of the corporation as an employee or agent of another corporation, partnership, joint venture, trust or other enterprise. Expenses incurred by any such director, officer, employee or agent in defending any such action, suit or proceeding may be advanced by the corporation prior to the final disposition of such action, suit or proceeding upon receipt of an undertaking by or on behalf of such director, officer, employee or agent to repay such amount if it shall ultimately be determined that he or she is not entitled to be indemnified as authorized by the Delaware Law and this Article VII. The corporation may, to the fullest extent permitted by the Delaware Law, purchase and maintain insurance on behalf of any such director, officer, employee or agent against any liability which may be asserted against such person. To the fullest extent permitted by the Delaware Law, the indemnification provided herein shall include expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement and, in the manner provided by the Delaware Law, any such expenses may be paid by the corporation in advance of the final disposition of such action, suit or proceeding. The indemnification provided herein shall not be deemed to limit the right of the corporation to indemnify any other person for any such expenses to the fullest extent permitted by the Delaware Law, nor shall it be deemed exclusive of any other rights to which any person seeking indemnification from the corporation may be entitled under any agreement, vote of stockholders or disinterested directors, or otherwise, both as to action in such person’s official capacity and as to action in another capacity while holding such office.

No repeal or modification of the foregoing paragraph shall adversely affect any right or protection of a director of the corporation existing by virtue of the foregoing paragraph at the time of such repeal or modification.

ARTICLE IX

CORPORATE POWER

The corporation reserves the right to amend, alter, change or repeal any provision contained in this Certificate of Incorporation, in the manner now or hereafter prescribed by statute, and all rights conferred on stockholders herein are granted subject to this reservation.

ARTICLE X

CREDITOR COMPROMISE OR ARRANGEMENT

Whenever a compromise or arrangement is proposed between this corporation and its creditors or any class of them and/or between this corporation and its stockholders or any class of them, any court of equitable jurisdiction within the State of Delaware may, on the application in a summary way of this corporation or of any creditor or stockholder thereof or on the application of any receiver or receivers appointed for this corporation under the provisions of Section 291 of Title 8 of the Delaware Code or on the application of trustees in dissolution or of any receiver or receivers appointed for this corporation under the provisions of Section 279 of

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Title 8 of the Delaware Code, order a meeting of the creditors or class of creditors, and/or of the stockholders or class of stockholders of this corporation, as the case may be, to be summoned in such manner as the said court directs. If a majority in number representing three-fourths in value of the creditors or class of creditors, and/or of the stockholders or class of stockholders of this corporation, as the case may be, agree to any compromise or arrangement and to any reorganization of this corporation as a consequence of such compromise or arrangement, the said compromise or arrangement and the said reorganization shall, if sanctioned by the court to which the said application has been made, be binding on all the creditors or class of creditors, and/or on all the stockholders or class of stockholders, of this corporation, as the case may be, and also on this corporation.

THE UNDERSIGNED, being the incorporator hereinbefore named, for the purpose of forming a corporation to do business both within and without the State of Delaware, and in pursuance of the Delaware General Corporation Law, does make and file this Certificate.

Dated: July 2, 2004

/s/ Julie H. Yi

Julie H. Yi, Incorporator

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