IP Library Assignment 019369/0756
Patent Assignment
Reel/Frame 019369/0756

Assignment of Assignor's Interest

Recorded: 2007-06-01 Pages: 2
Assignor
PUTZIG, DONALD EDWARD
Executed: 2007-03-30
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
1007 MARKET STREET, LEGAL-PATENTS, WILMINGTON, DELAWARE, 19898
Covered Property (1)
Zirconium-Base Cross-Linker Compositions and Their Use in High Ph Oil Field Applications
Patent: 7,795,188 →
Application: 11/731,405 →
Publication: US 2008/0236824
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jan 26, 2011
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DORF KETAL SPECIALITY CATALYSTS, LLC
Reel/Frame 025702/0290 →