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Patent Assignment Abstract of Title

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Total Assignments: 2

Patent #:	6919690	Issue Dt:	07/19/2005	Application #:	10896747	Filing Dt:	07/21/2004
Publication #:	20050045035	Pub Dt:	03/03/2005
Inventors:	Daniel E. Siegfried, David Matthew Burtner, Scott A. Townsend, John Keem et al
Title:	MODULAR UNIFORM GAS DISTRIBUTION SYSTEM IN AN ION SOURCE

Assignment: 1

Reel/Frame:

015357/0335

Recorded: 11/15/2004

Pages: 14

Conveyance:

ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors:

SIEGFRIED, DANIEL E.

Exec Dt:

11/09/2004

BURTNER, DAVID MATTHEW

Exec Dt:

11/11/2004

TOWNSEND, SCOTT A.

Exec Dt:

11/09/2004

KEEM, JOHN

Exec Dt:

11/04/2004

KRIVORUCHKO, MARK

Exec Dt:

11/11/2004

ALEXEYEV, VALERY

Exec Dt:

11/11/2004

ZELENKOV, VSEVOLOD

Exec Dt:

11/11/2004

Assignee:

VEECO INSTRUMENTS, INC.

100 SUNNYSIDE BLVD.

SUITE B

WOODBURY, COLORADO 11797-2902

Correspondent:

HENSLEY KIM & EDGINGTON, LLC

1660 LINCOLN STREET

SUITE 3050

DENVER, CO 80264

Assignment: 2

Reel/Frame:

019398/0221

Recorded: 04/28/2005

Pages: 9

Conveyance:

CORRECTIVE ASSIGNMENT TO CORRECT THE ADDRESS OF THE ASSIGNEE PREVIOUSLY RECORDED ON REEL 015357 FRAME 0335. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT OF THE ENTIRE RIGHT, TITLE AND INTEREST AS RECITED IN THE ORIGINAL ASSIGNMENT DOCUMENT.

Assignors:

SIEGFRIED, DANIEL E.

Exec Dt:

11/09/2004