Patent Assignment
Reel/Frame 023933/0270
Assignment of Assignor's Interest
Recorded: 2010-02-12
Pages: 2
Assignor
SAWTELL, RALPH
Executed: 2010-02-05
Assignee
ALCOA INC.
ALCOA CORPORATE CENTER, 201 ISABELLA STREET, PITTSBURGH, PENNSYLVANIA, 15212-5858
Covered Property
(1)
Method and Apparatus for Connecting Drilling Riser Strings and Compositions Thereof
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 11, 2012
From: KILEY, MATTHEW P.; ZONKER, HARRY R.; BURG, JAMES T.; COBES, JOHN W.
To: ALCOA INC.
Reel/Frame 028526/0959 →
Change of Name
Nov 11, 2016
From: ALCOA INC.
To: ARCONIC INC.
Reel/Frame 040599/0309 →
Assignment of Assignor's Interest
Nov 7, 2019
From: ARCONIC INC.
To: NATIONAL COUPLING COMPANY, INC.
Reel/Frame 050951/0001 →