Security Interest

Recorded: 2014-05-01 Pages: 9

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Assignor

KWAN SOFTWARE ENGINEERING, INC.

Executed: 2014-05-01

Assignee

HARRINGTON, KEVIN J.

3340 BAKER STREET, SAN FRANCISCO, CALIFORNIA, 94123

Covered Properties (5)

System and Method for Digitally Marking a File

Patent: 6,434,701 →

Application: 09/287,537 →

System and Method for Digitally Marking a File with a Removable Mark

Patent: 6,792,535 →

Application: 09/528,362 →

System and Method for Authenticating Data Using Incompatible Digest Functions

Patent: 7,480,796 →

Application: 10/102,507 →

Publication: US 2002/0188849

System and Method for Digitally Marking a File with a Removable Mark

Patent: 8,285,995 →

Application: 10/828,956 →

Publication: US 2004/0199772

System and Method for Authenticating Data Using Incompatible Digest Functions

Patent: 8,433,899 →

Application: 12/356,473 →

Publication: US 2009/0204813

Related Assignments (5)

Other recorded transfers of the patents in this record — the chain of ownership.

Assignment of Assignor's Interest Apr 6, 1999

From: KWAN, JOHN MAN KWONG

To: KWAN SOFTWARE ENGINEERING, INC.

Reel/Frame 009899/0634 →

Assignment of Assignor's Interest Mar 17, 2000

From: KWAN, JOHN MAN KWONG

To: KWAN SOFTWARE ENGINEERING, INC.

Reel/Frame 010687/0188 →

Assignment of Assignor's Interest Mar 19, 2002

From: KWAN, JOHN MAN KWONG

To: KWAN SOFTWARE ENGINEERING, INC.

Reel/Frame 012737/0980 →

Assignment of Assignor's Interest Jun 1, 2004

From: KWAN, JOHN MAN KWONG

To: KWAN SOFTWARE ENGINEERING, INC.

Reel/Frame 015385/0733 →

Assignment of Assignor's Interest Apr 2, 2009

From: KWAN, JOHN MAN KWONG

To: KWAN SOFTWARE ENGINEERING, INC.

Reel/Frame 022498/0461 →