IP Library › Assignment 019939/0072
Patent Assignment
Reel/Frame 019939/0072

Assignment of Assignor's Interest

Recorded: 2007-10-09 Pages: 5
Assignor
EURO-CELTIQUE S.A.
Executed: 2007-10-09
Assignee
PURDUE PHARME L.P.
ONE STAMFORD FORUM, STAMFORD, CONNECTICUT, 06901-3431
Covered Property (1)
Method of Reducing Alpha, Beta Unsaturated Ketones in Opioid Compositions
Patent: 7,939,543 →
Application: 11/885,402 →
Publication: US 2008/0132702
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Sep 24, 2007
From: KUPPER, ROBERT J.
To: EURO-CELTIQUE S.A.
Reel/Frame 019870/0714 →
Assignment of Assignor's Interest Jan 26, 2012
From: PURDUE PHARMA L.P.
To: PURDUE PHARMA L.P.; THE P.F. LABORATORIES, INC.; PURDUE PHARMACEUTICALS L.P.; RHODES TECHNOLOGIES
Reel/Frame 027598/0389 →
Assignment of Assignor's Interest Apr 19, 2019
From: THE P.F. LABORATORIES, INC.; PURDUE PHARMA TECHNOLOGIES, INC.
To: PURDUE PHARMA L.P.
Reel/Frame 048936/0093 →