IP Library › Assignment 006182/0258
Patent Assignment
Reel/Frame 006182/0258

Assignment of Assignors Interest.

Recorded: 1992-07-06 Pages: 3
Assignors
NGUYEN, THANH D.
Executed: 1991-06-11
HUBBY, CHRISTOPHER M.
Executed: 1991-05-22
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 Continuous Spinning of Hollow-Fiber Membranes Using a Solvent Mixture as a Precipitation Medium
Patent: 5,151,227 →
Application: 07/671,066 →
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 →