Patent Assignment
Reel/Frame 023436/0713
Assignment of Assignor's Interest
Recorded: 2009-10-28
Pages: 5
Assignors
HAYES, RICHARD ALLEN
Executed: 2009-01-07
METZLER, WARD
Executed: 2008-12-15
KELLY, MARK B.
Executed: 2009-05-13
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
4417 LANCASTER PIKE, BARLEY MILL PLAZA 25, WILMINGTON, DELAWARE, 19809
Covered Property
(1)
Highly Abrasion-Resistant Ionomer Pipes
Application:
12/262,883 →
Publication:
US 2009/0107572
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.