IP Library › Assignment 019337/0123
Patent Assignment
Reel/Frame 019337/0123

Assignment of Assignor's Interest

Recorded: 2007-05-24 Pages: 2
Assignor
MCEWEN, CHARLES NEHEMIAH
Executed: 2007-03-26
Assignee
E. I. DU PONT DE NEMOURS AND COMPANY
1007 MARKET STREET, LEGAL-PATENTS, WILMINGTON, DELAWARE, 19898
Covered Property (1)
Ion Source for a Mass Spectrometer
Patent: 7,642,510 →
Application: 11/508,444 →
Publication: US 2008/0048107
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jul 26, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT US HOLDING, LLC
Reel/Frame 049880/0001 →
Corrective Assignment to Correct the Designation of Assignee as a Delaware Corporation to a Delaware Limited Liability Company Previously Recorded on Reel 049880 Frame 0001. Assignor(S) Hereby Confirms the Assignment. Aug 28, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT US HOLDING, LLC
Reel/Frame 051502/0610 →
Change of Name Jan 4, 2024
From: DUPONT US HOLDING, LLC
To: IFF US HOLDING, LLC
Reel/Frame 066194/0918 →