Patent Assignment
Reel/Frame 005941/0675
Assignment of Assignors Interest.
Recorded: 1991-12-16
Pages: 2
Assignor
NGUYEN, THANH D.
Executed: 1991-03-03
Assignee
W. R. GRACE & CO.-CONN
A CORP. OF CT., 1114 AVENUE OF THE AMERICAS, NEW YORK, NEW YORK, 10036
Covered Property
(1)
Process for Preparing Protein Non-Adsorptive Microporous Polysulfone Membranes
Patent:
5,096,585 →
Application:
07/646,977 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 19, 1997
From: W.R. GRACE & CO.-CONN.
To: CIRCE BIOMEDICAL, INC.
Reel/Frame 008568/0515 →
Change of Name
Mar 15, 2002
From: CIRCE ACQUISITION CORP.
To: CIRCE BIOMEDICAL, INC.
Reel/Frame 013000/0729 →
Assignment of Assignor's Interest
Mar 18, 2002
From: CIRCE BIOMEDICAL, INC.
To: CIRCE ACQUISITION CORP.
Reel/Frame 013056/0483 →