Patent Assignment
Reel/Frame 007531/0253
Assignment of Assignor's Interest
Recorded: 1995-05-22
Pages: 3
Assignee
RHONE-POULENC SURFACTANTS AND SPECIALITIES, L.P.
CN7500, PROSPECT PLAINS ROAD, CRANBURY, NEW JERSEY, 08512
Covered Property
(1)
Use of High Purity Imidazoline Based Amphoacetate Surfactant as Foaming Agent in Oil Wells
Patent:
5,614,473 →
Application:
08/446,393 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Feb 6, 1998
From: RHONE-POULENC INC.
To: RHODIA INC.
Reel/Frame 010404/0268 →
Invalid Recording. See Recording at Reel 010404, Frame 0268.
Feb 6, 1998
From: RHONE-POULENC INC.
To: RHODIA INC.
Reel/Frame 008955/0873 →
Assignment of Assignor's Interest
Jan 19, 2000
From: RHONE-POULENC SURFACTANTS & SPECIALTIES, L.P.
To: RHODIA INC.
Reel/Frame 010539/0616 →